CN106602241B - Eight-frequency-band antenna - Google Patents
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- CN106602241B CN106602241B CN201510678102.3A CN201510678102A CN106602241B CN 106602241 B CN106602241 B CN 106602241B CN 201510678102 A CN201510678102 A CN 201510678102A CN 106602241 B CN106602241 B CN 106602241B
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Abstract
本发明公开一种八频段天线，包括：一载体、一高频段、一低频段、一印刷电路板及一电感器。该高频段设于该载体左边，该低频段设于该载体右边。在该载体与该印刷电路板固接后，使该载体底面上的辐射体与该印刷电路板的微带线及该接地金属面的接地线电性连接。在载体与该印刷电路板固接后，使该载体的低频段对应较小面积的该第一接地金属面，使该低频段处于一自由空间上，以提升低频段的频率响应及高频段的带宽。且以该载体上的盲孔的面积与容积用以调整该载体的等效介电常数，以达成调整天线谐振频率与带宽的目的。
The present invention discloses an eight-band antenna, comprising: a carrier, a high frequency band, a low frequency band, a printed circuit board and an inductor. The high frequency band is arranged on the left side of the carrier, and the low frequency band is arranged on the right side of the carrier. After the carrier is fixedly connected to the printed circuit board, the radiator on the bottom surface of the carrier is electrically connected to the microstrip line of the printed circuit board and the grounding line of the grounding metal surface. After the carrier is fixedly connected to the printed circuit board, the low frequency band of the carrier corresponds to the first grounding metal surface with a smaller area, so that the low frequency band is in a free space, so as to improve the frequency response of the low frequency band and the bandwidth of the high frequency band. And the area and volume of the blind hole on the carrier are used to adjust the equivalent dielectric constant of the carrier, so as to achieve the purpose of adjusting the resonant frequency and bandwidth of the antenna.
Description
Technical Field
The present invention relates to an eight-band antenna, and more particularly, to an eight-band antenna with improved low frequency response and increased high frequency bandwidth.
Background
A conventional dual-band Inverted-F Antenna (PIFA) is manufactured by directly printing a metal copper material on a printed circuit board (pcb) by a two-dimensional pcb (printed circuit board) technique to form a Planar multi-band Antenna, or by stamping a metal sheet to form a three-dimensional multi-band Antenna.
The antenna can achieve the multi-band transceiving effect by changing the two-dimensional radiator pattern of the printed circuit board or changing the geometric shape of the three-dimensional radiator punched by the metal sheet. However, in order to satisfy the quality of signal transmission and reception and avoid frequency tuning misalignment caused by the influence of the surrounding environment, the radiator of the antenna formed on the printed circuit board or the antenna formed by stamping the metal sheet must have a specific volume, and in order to install the PIFA antenna structure having a specific volume, an appropriate space must be reserved inside the electronic device for installing the PIFA antenna structure, which is contrary to the requirement of the electronic device for a slim and compact design.
Under the continuous advancement of technology, in order to solve the above-mentioned problems, a radiator of an antenna is fabricated on a square carrier made of ceramic material, as shown in fig. 1 and 2, a surface of a carrier 101 of the antenna 10 has a radiator of a high frequency band 102 and a low frequency band 103 for transmitting and receiving signals, and the carrier 101 is fixedly connected to the printed circuit board 20, and two surfaces of the printed circuit board 20 respectively have a grounding metal surface 201, a signal feeding microstrip line 202 and a grounding line 203. The signal feed-in microstrip line 202 and the ground line 203 are electrically connected to the radiator of the carrier 101. Since the high band 102 is located at the right side of the carrier 101 and the low band 103 is located at the left side of the carrier 101, after the antenna 10 is electrically and fixedly connected to the printed circuit board 20, the area of the ground metal surface 201 of the printed circuit board 20 corresponding to the low band 103 is larger than the area of the ground metal surface 201 corresponding to the high band 102, so that the low band 102 is more affected by the ground shield, the frequency response of the low band 103 is deteriorated during communication (as indicated by symbol a in fig. 2), and the bandwidth of the high band 102 is also not wide enough (limited to 6 bands, as indicated by symbol B in fig. 2), so that the quality of transmitting and receiving signals of the whole antenna is reduced, and the bandwidth of transmitting and receiving signals is limited.
Disclosure of Invention
Therefore, the main objective of the present invention is to solve the conventional disadvantages, in which the position of the radiator of the high frequency band and the low frequency band attached to the surface of the carrier of the antenna is changed, and after the carrier of the antenna is fixedly connected to the printed circuit board, the low frequency band on the carrier corresponds to the ground metal surface with a smaller area, so that the low frequency band on the carrier is in a free space, the frequency response effect of the low frequency band is good, and the bandwidth of the high frequency band is increased.
Another objective of the present invention is to use the design of the blind holes and the rib-shaped structure on the carrier to reduce the weight of the carrier itself and suppress the warpage of the carrier, and the area and volume of the blind holes are used to adjust the equivalent dielectric constant of the carrier, so as to achieve the purpose of adjusting the resonant frequency and bandwidth of the antenna. And the shape and symmetry of the blind hole can be changed and adjusted at will due to design.
Another objective of the present invention is to electrically connect an inductor to the ground line and the microstrip line, so as to form a ground connection state in addition to adjusting the impedance, so that the antenna forms a dual-band inverted-F dipole antenna.
To achieve the above object, the present invention provides an eight-band antenna, comprising:
the carrier is a ceramic square body and is provided with a front surface, a top surface, a back surface and a bottom surface, the front surface is provided with a plurality of blind holes which are deep into the carrier body, and at least one rib-shaped structure is arranged among the blind holes;
a high frequency band, which is arranged on each front side, the top side, the back side and the bottom side of the left side of the carrier by taking the front side of the carrier as a reference;
a low frequency band, which is arranged on each front face, the top face, the back face and the bottom face of the right side of the carrier by taking the front face of the carrier as a reference;
a printed circuit board, which has a top side, a left side bevel edge, a bevel bottom edge, a right side short edge, a gap edge and a right side long edge, the printed circuit board has a first surface and a second surface, the first surface has a first grounding metal surface and a microstrip line, the microstrip line has a front section and a rear section, the front section has a through hole, the front section of the microstrip line extends into the first grounding metal surface, so that a gap is formed between the first grounding metal surface and the microstrip line, the area of the first grounding metal surface from the left side bevel edge to the gap is larger than the area of the gap edge to the gap, a ground wire extends from the gap edge to the first grounding metal surface with smaller area between the gap edge and the gap, so that a space is formed between the rear section of the microstrip line and the ground wire; two corresponding fixed ends are arranged on the bare area of the first surface;
an inductor, located on the space, with one end of the inductor electrically connected to the back section of the microstrip line and the other end electrically connected to the ground line;
the two fixed ends of the bare area of the first surface are fixedly connected with the bottom surface of the carrier, so that the low-frequency section of the carrier corresponds to the first grounding metal surface with a smaller area between the edge of the notch of the printed circuit board and the gap, and the low-frequency section is positioned on a free space to improve the frequency response of the low-frequency section and the bandwidth of the high-frequency section.
The area of the blind hole on the front surface and the volume penetrating into the carrier are used for adjusting the equivalent dielectric constant of the carrier, so that the resonant frequency and the bandwidth of the antenna can be adjusted.
Wherein, the area proportion range of the blind holes accounts for 30 to 50 percent of the area of the carrier body.
Wherein, the area proportion of the blind hole is 40%.
Wherein, the volume proportion range of the blind hole accounts for 20-30% of the carrier body.
Wherein, the volume proportion of the blind hole is 24%.
The double T-shaped radiators are respectively arranged on the front surface, the top surface, the back surface and the bottom surface of the carrier, and a part of radiators positioned on the bottom surface of the double T-shaped radiators form a fixed joint to be fixedly connected with the fixed end of the printed circuit board; one bottom of the double T-shaped radiator is electrically connected with one end of the short edge of the first L-shaped radiator arranged on the back surface, the other end of the short edge of the first L-shaped radiator is electrically connected with the in-line radiator arranged on the front surface and the bottom surface, and the in-line radiator is electrically connected with the microstrip line; the long edges of the first L-shaped radiator arranged on the top surface and the back surface are in coupling connection with the bent line radiator arranged on the top surface and the back surface; the second L-shaped radiator is respectively arranged on the front surface and the bottom surface, the short edge of the second L-shaped radiator is parallel and corresponding to the linear radiator, the long edge of the second L-shaped radiator is vertical and corresponding to the linear radiator and is parallel and corresponding to the bent line radiator, and the long edge of the second L-shaped radiator is electrically connected with the grounding wire.
Wherein, the high frequency band comprises a 4 th frequency band, a 5 th frequency band, a 6 th frequency band, a 7 th frequency band and an 8 th frequency band, and the bandwidth ranges of the 4 th frequency band, the 5 th frequency band, the 6 th frequency band, the 7 th frequency band and the 8 th frequency band are distributed in 1710MHZ-2700 MHZ.
Wherein the pitch of the bent line radiator is 0.15mm-0.3mm, and the bent line radiator forms an LC resonance to generate a resonance frequency of 2400MHz-2700 MHz.
The low-frequency band is composed of a first square radiator, a second square radiator, a third square radiator and a fourth square radiator with different areas, the first square radiator, the second square radiator, the third square radiator and the fourth square radiator are respectively arranged on the front surface, the top surface, the back surface and the bottom surface, and the third square radiator positioned on the bottom surface forms a fixed joint fixedly connected with the fixed end of the printed circuit board.
The low frequency band includes a 1 st frequency band, a 2 nd frequency band and a 3 rd frequency band, and the bandwidth ranges of the 1 st frequency band, the 2 nd frequency band and the 3 rd frequency band are 700MHz-960 MHz.
The second surface is provided with a second grounding metal surface, the through hole penetrates through the second grounding metal surface, the through hole is electrically connected with a signal feed-in end of a copper shaft cable, and the second grounding metal surface is electrically connected with a grounding end of the copper shaft cable.
The invention has the advantages that:
the invention changes the position of the radiator of the high frequency band and the low frequency band attached to the surface of the carrier of the antenna, after the carrier of the antenna is fixedly connected with the printed circuit board, the low frequency band on the carrier corresponds to the grounding metal surface with smaller area, so that the low frequency band on the carrier is positioned on a free space, the frequency response effect of the low frequency band is good, and the bandwidth of the high frequency band is increased. The invention uses the design of the blind hole and the rib-shaped structure on the carrier as the weight reduction of the carrier and the suppression of the molding buckling deformation, and the area and the volume of the blind hole are used for adjusting the equivalent dielectric constant of the carrier, thereby achieving the purpose of adjusting the resonant frequency and the bandwidth of the antenna. And the shape and symmetry of the blind hole can be changed and adjusted at will due to design. The invention can adjust impedance and form a ground connection state, so that the antenna forms a dual-frequency inverted-F-shaped coupling antenna.
Drawings
Fig. 1 is a schematic diagram of a conventional multi-frequency antenna structure.
Fig. 2 is a graph showing reflection loss curves of fig. 1.
Fig. 3-6 are schematic diagrams of patterns of front, top, back and bottom metal radiators of an eight-band antenna according to the present invention.
Fig. 7 is an expanded schematic view of the pattern of the metal radiator on each side of the eight-band antenna according to the present invention.
Fig. 8 is an exploded view of the eight-band antenna and the pcb of the present invention.
FIG. 9 is a schematic view of the back side of the printed circuit board of the present invention.
Fig. 10 is a schematic view of the electrical connection assembly of the eight-band antenna and the printed circuit board according to the present invention.
Fig. 11 is a reflection loss curve diagram of the eight-band antenna according to the present invention.
In the prior art:
10 an antenna; 101 a carrier; 102 high frequency band; 103 low frequency band; 20 a printed circuit board;
201 a grounded metal plane; 202 a signal feed-in microstrip line; 203 to ground.
In the invention:
1, a carrier; 11 a front side; 12 a top surface; 13 back side; 14 a bottom surface; 15 blind holes; 16 rib-like structures;
2 high frequency band; 21 double T-shaped radiators; 211 a partial radiator; 22 a first L-shaped radiator;
221 short sides; 222 long side; 23 a line radiator; 24 bent wire radiators; 241 space;
25 a second L-shaped radiator; 251 short sides; 252 long side; 3, low frequency band; 31 a first square radiator;
32 a second square radiator; 33 a third square radiator; 34 a fourth square radiator;
4a printed circuit board; 4a top edge; 4b left bevel edge; 4c oblique bottom edge; 4d right short side;
4e a notch edge; 4f right long side; 41 a first surface; 42 a second surface; 43 a first grounded metal plane;
431. 432 area; 43' a second grounded metal plane; 44 microstrip lines; 441 front section; 442 rear section;
443 perforating; 45 gaps; 46 a ground line; 47 spaces; 48 fixed ends; 5 inductors.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
Referring to fig. 3-7, the patterns and the pattern development diagrams of the metal radiators on the sides of the eight-band antenna according to the present invention are shown. As shown in the figure: the eight-frequency band antenna of the invention comprises: a carrier 1, a high band 2 and a low band 3.
The carrier 1 is made of ceramic material and has a front surface 11, a top surface 12, a back surface 13 and a bottom surface 14. The front surface 11 is provided with a plurality of blind holes 15, at least one rib-shaped structure 16 is arranged among the blind holes 15, and the design of the blind holes 15 and the rib-shaped structure 16 is used for reducing the weight of the carrier 1 body and inhibiting the molding buckling deformation. The area of the blind hole 15 on the front surface 11 and the volume extending into the carrier 1 are used to adjust the equivalent dielectric constant of the carrier 1, so as to achieve the purpose of adjusting the resonant frequency and bandwidth of the antenna. Wherein, the area proportion of the blind holes 15 accounts for about 30-50% of the area of the carrier 1 body, and the area proportion is 40%. The volume proportion of the blind holes 15 is in the range of 20 to 30% of the carrier 1 itself, in the range of 24% by volume. And the shape and symmetry of the blind hole 15 can be arbitrarily changed and adjusted according to the design.
The high band 2 is located on the left side of the carrier 1 with reference to the front surface 11 of the carrier 1, and the high band 2 is composed of a double T-shaped radiator 21, a first L-shaped radiator 22, a one-to-one radiator 23, a bent line radiator 24 and a second L-shaped radiator 25, the double T-shaped radiator 21 is respectively disposed on the front surface 11, the top surface 12, the back surface 13 and the bottom surface 14 of the carrier 1, and a fixed contact point fixed with the printed circuit board (not shown) is formed by a portion of the radiator 211 located on the bottom surface 14 of the double T-shaped radiator 21. One bottom of the double T-shaped radiator 21 is electrically connected to one end of the short side 221 of the first L-shaped radiator 22 disposed on the back surface 13, and the other end of the short side 221 of the first L-shaped radiator 22 is electrically connected to the in-line radiator 23 disposed on the front surface 11 and the bottom surface 14, wherein the in-line radiator 23 forms a signal feed point in the drawing. In addition, the long side 222 of the first L-shaped radiator 22 disposed on the top surface 12 and the back surface 13 is coupled to the curved line radiator 24 disposed on the top surface 12 and the back surface 13, the distance 241 between the curved line radiators 24 is 0.15mm to 0.3mm, and the curved line radiator 24 forms an LC resonance to generate a resonant frequency of 2400MHZ to 2700 MHZ. The second L-shaped radiator 25 is disposed on the front surface 11 and the bottom surface 14 of the carrier 1, the short side 251 of the second L-shaped radiator 25 corresponds to the in-line radiator 23 in parallel, the long side 252 of the second L-shaped radiator 25 corresponds to the in-line radiator 23 in perpendicular, and corresponds to the curved line radiator 24 in parallel, and in the figure, the long side 252 of the second L-shaped radiator 25 forms a grounding point. In the drawing, the high frequency band 2 includes the 4 th frequency band, the 5 th frequency band, the 6 th frequency band, the 7 th frequency band and the 8 th frequency band of the present invention, and the bandwidth ranges of the 4 th frequency band, the 5 th frequency band, the 6 th frequency band, the 7 th frequency band and the 8 th frequency band are distributed in 1710MHZ-2700MHZ, and can be used for GSM, WCDMA, WIFI and LTE communication systems.
The low band 3 is located on the right side of the carrier 1 with reference to the front surface 11 of the carrier 1, the low band 3 is composed of a first square radiator 31, a second square radiator 32, a third square radiator 33 and a fourth square radiator 34 with different areas, and the low band 3 is respectively arranged on the front surface 11, the top surface 12, the back surface 13 and the bottom surface 14 of the carrier 1, and the third square radiator 33 located on the bottom surface 14 of the carrier 1 forms a fixed contact point fixedly connected with the printed circuit board. In this figure, the low band 3 includes the 1 st band, the 2 nd band and the 3 rd band of the present invention, and the bandwidths of the 1 st band, the 2 nd band and the 3 rd band are in the range of 700MHZ to 960MHZ, which can be used in LTE and GMS communication systems.
Referring to fig. 8-10, the eight-band antenna of the present invention is exploded from the printed circuit board, and the back side and electrical connection of the printed circuit board are combined. As shown in the figure: in the figure, the eight-band antenna of the present invention further includes a printed circuit board 4 fixedly connected to the carrier 1, and the printed circuit board 4 is formed by a top side 4a, a left side bevel edge 4b, a bevel bottom edge 4c, a right side short edge 4d, a notch edge 4e, and a right side long edge 4f in sequence. The printed circuit board 4 has a first surface 41 and a second surface 42. The first surface 41 has a first grounding metal surface 43 and a microstrip line 44, the microstrip line 44 has a front section 441 and a rear section 442, the front section 441 has a through hole 443, the front section 441 of the microstrip line 44 extends into the first grounding metal surface 43, and a gap 45 is formed between the first grounding metal surface 43 and the microstrip line, so that an area 431 from the left oblique edge 4b to the gap 45 of the first grounding metal surface 43 is larger than an area 432 from the notch edge 4e to the gap 45.
In addition, a grounding line 46 extends from the first grounding metal surface 43 with a smaller area 432 between the notch edge 4e and the gap 45, the grounding line 46 is parallel to the rear section 442 of the microstrip line 44, a gap 47 is formed between the rear section 442 of the microstrip line 44 and the grounding line 46, an inductor 5 is electrically connected to the gap 47 between the rear section 442 of the microstrip line 44 and the grounding line 46, one end of the inductor 5 is electrically connected to the rear section 442 of the microstrip line 44, the other end is electrically connected to the grounding line 46, the inductor 5 can adjust impedance, and a ground connection state is formed, so that the antenna forms a dual-frequency inverted-F dipole antenna. Two corresponding fixed ends 48 are disposed on the bare area of the first surface 41, and the two fixed ends 48 are used to fixedly connect a portion of the radiator 211 on the bottom surface 14 of the carrier 1 and the third square radiator 33.
In addition, the second surface 42 has a second grounding metal surface 43 ', the through hole 443 penetrates the second grounding metal surface 43 ', the through hole 443 is electrically connected to a signal feeding terminal (not shown) of the copper axial cable, and the second grounding metal surface 43 ' is electrically connected to a grounding terminal of the copper axial cable.
When the carrier 1 is fixed to the pcb 4, the bare area of the first surface 41 has two fixed ends 48 fixed to the partial radiator 211 of the bottom surface 14 of the carrier 1 and the third square radiator 33, so that the linear radiator 23 of the bottom surface 14 is electrically connected to the microstrip line 44, and the long side 252 of the second L-shaped radiator 25 is electrically connected to the ground line 46. After the connection, the low band 3 on the carrier 1 is located in the bare area and corresponds to the notch edge 4e of the printed circuit board 4, and corresponds to the first grounding metal surface 43 with the smaller area 432, so that the low band 3 on the carrier 1 is located in a free space, and the frequency response effect of the low band 3 of the eight-band antenna is good.
Referring to fig. 11, a reflection coefficient curve of the eight-band antenna of the present invention is shown in fig. 10. As shown in the figure: after the carrier 1 of the invention is fixedly connected with the printed circuit board 4, when the low frequency band 3 on the carrier 1 is positioned on the notch edge 4e of the printed circuit board 4 corresponding to the smaller area of the first grounding metal surface 43, and the low frequency band 3 on the carrier 1 is positioned in the free space with less grounding shielding, the frequency response effect of the low frequency band 3 of the eight-band antenna is better (as shown in figure 11 with the label C), the bandwidth of the high frequency band 2 is also increased (as shown in figure 11 with the label D), and the frequency distribution of the low frequency band 3 is that the bandwidth ranges of the 1 st frequency band, the 2 nd frequency band and the 3 rd frequency band are 700MHZ-960MHZ, so that the invention is applied to LTE and GSM systems. The bandwidth ranges of the 4 th frequency band, the 5 th frequency band and the 6 th frequency band of the high frequency band 2 are 1710MHZ-2170MHZ, and GSM and WCDMA systems are applied. The bandwidth range of the 7 th frequency band is 2400MHZ-2500MHZ, the bandwidth range of the 7 th frequency band is 2600MHZ-2700MHZ when the bandwidth range is applied to a WIFI system and the bandwidth range of the 8 th frequency band is applied to an LTE system.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (12)
1. An eight-band antenna, comprising:
the carrier is a ceramic square body and is provided with a front surface, a top surface, a back surface and a bottom surface, the front surface is provided with a plurality of blind holes which are deep into the carrier body, and at least one rib-shaped structure is arranged among the blind holes;
a high frequency band, which is arranged on each front side, the top side, the back side and the bottom side of the left side of the carrier by taking the front side of the carrier as a reference;
a low frequency band, which is arranged on each front face, the top face, the back face and the bottom face of the right side of the carrier by taking the front face of the carrier as a reference;
a printed circuit board, which has a top side, a left side bevel edge, a bevel bottom edge, a right side short edge, a gap edge and a right side long edge, the printed circuit board has a first surface and a second surface, the first surface has a first grounding metal surface and a microstrip line, the microstrip line has a front section and a rear section, the front section has a through hole, the front section of the microstrip line extends into the first grounding metal surface, so that a gap is formed between the first grounding metal surface and the microstrip line, the area of the first grounding metal surface from the left side bevel edge to the gap is larger than the area of the gap edge to the gap, a ground wire extends from the gap edge to the first grounding metal surface with smaller area between the gap edge and the gap, so that a space is formed between the rear section of the microstrip line and the ground wire; two corresponding fixed ends are arranged on the bare area of the first surface;
an inductor, located on the space, with one end of the inductor electrically connected to the back section of the microstrip line and the other end electrically connected to the ground line;
the two fixed ends of the bare area of the first surface are fixedly connected with the bottom surface of the carrier, so that the low-frequency section of the carrier corresponds to the first grounding metal surface with a smaller area between the edge of the notch of the printed circuit board and the gap, and the low-frequency section is positioned on a free space to improve the frequency response of the low-frequency section and the bandwidth of the high-frequency section.
2. The octave band antenna of claim 1, wherein the area of the blind via on the front surface and the volume deep inside the carrier are used to adjust the equivalent dielectric constant of the carrier, thereby achieving adjustment of the antenna resonant frequency and bandwidth.
3. The eight-band antenna according to claim 2, wherein the area ratio of the blind holes is 30-50% of the area of the carrier body.
4. The octave band antenna of claim 3, wherein the proportion of the area of the blind holes is 40%.
5. The octave band antenna of claim 2, wherein the blind hole has a volume fraction in the range of 20-30% of the carrier body.
6. The octave-band antenna according to claim 5, wherein the volume fraction of the blind holes is 24%.
7. The eight band antenna of claim 1, wherein the high band antenna has a dual T-shaped radiator, a first L-shaped radiator, a one-to-one radiator, a bent line radiator and a second L-shaped radiator, the dual T-shaped radiators are respectively disposed on the front surface, the top surface, the back surface and the bottom surface of the carrier, and the fixed end of the printed circuit board is fixed to the fixed end of the printed circuit board by a fixed point formed by a portion of the dual T-shaped radiator located on the bottom surface; one bottom of the double T-shaped radiator is electrically connected with one end of the short edge of the first L-shaped radiator arranged on the back surface, the other end of the short edge of the first L-shaped radiator is electrically connected with the in-line radiator arranged on the front surface and the bottom surface, and the in-line radiator is electrically connected with the microstrip line; the long edges of the first L-shaped radiator arranged on the top surface and the back surface are in coupling connection with the bent line radiator arranged on the top surface and the back surface; the second L-shaped radiator is respectively arranged on the front surface and the bottom surface, the short edge of the second L-shaped radiator is parallel and corresponding to the linear radiator, the long edge of the second L-shaped radiator is vertical and corresponding to the linear radiator and is parallel and corresponding to the bent line radiator, and the long edge of the second L-shaped radiator is electrically connected with the grounding wire.
8. The eight-band antenna of claim 7, wherein the high band comprises a 4 th band, a 5 th band, a 6 th band, a 7 th band and an 8 th band, and bandwidths of the 4 th band, the 5 th band, the 6 th band, the 7 th band and the 8 th band are distributed between 1710MHz and 2700 MHz.
9. The eight-band antenna of claim 8, wherein the bent line radiator is spaced apart by 0.15mm to 0.3mm, and an LC resonance is formed with the bent line radiator to generate a resonance frequency of 2400MHZ to 2700 MHZ.
10. The eight band antenna of claim 8, wherein the low band antenna comprises a first square radiator, a second square radiator, a third square radiator and a fourth square radiator with different areas, and the third square radiator is disposed on the front surface, the top surface, the back surface and the bottom surface, respectively, and the third square radiator on the bottom surface forms a fixed point to be fixed to the fixed end of the printed circuit board.
11. The eight-band antenna of claim 10, wherein the low band comprises a 1 st band, a 2 nd band and a 3 rd band, and bandwidths of the 1 st band, the 2 nd band and the 3 rd band are distributed between 700MHZ and 960 MHZ.
12. The eight-band antenna of claim 11, wherein the second surface has a second grounding metal surface, the through hole penetrates the second grounding metal surface, the through hole is electrically connected to a signal feeding terminal of a coaxial cable, and the second grounding metal surface is electrically connected to a grounding terminal of the coaxial cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510678102.3A CN106602241B (en) | 2015-10-20 | 2015-10-20 | Eight-frequency-band antenna |
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| CN201510678102.3A CN106602241B (en) | 2015-10-20 | 2015-10-20 | Eight-frequency-band antenna |
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| CN106602241B true CN106602241B (en) | 2020-03-31 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420348A (en) * | 2010-09-27 | 2012-04-18 | 广达电脑股份有限公司 | Stereo slotted multi-frequency antenna |
| US8779988B2 (en) * | 2011-01-18 | 2014-07-15 | Cirocomm Technology Corp. | Surface mount device multiple-band antenna module |
| CN204067570U (en) * | 2014-09-11 | 2014-12-31 | 深圳市六二九科技有限公司 | 2G, 3G, 4G integrate multifrequency antenna and wireless communication terminal |
| EP2904660A1 (en) * | 2012-10-08 | 2015-08-12 | Zuniga, Eleazar | Low cost ultra-wideband lte antenna |
| CN205122764U (en) * | 2015-10-20 | 2016-03-30 | 锐锋股份有限公司 | Eight Band Antenna |
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- 2015-10-20 CN CN201510678102.3A patent/CN106602241B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420348A (en) * | 2010-09-27 | 2012-04-18 | 广达电脑股份有限公司 | Stereo slotted multi-frequency antenna |
| US8779988B2 (en) * | 2011-01-18 | 2014-07-15 | Cirocomm Technology Corp. | Surface mount device multiple-band antenna module |
| EP2904660A1 (en) * | 2012-10-08 | 2015-08-12 | Zuniga, Eleazar | Low cost ultra-wideband lte antenna |
| CN204067570U (en) * | 2014-09-11 | 2014-12-31 | 深圳市六二九科技有限公司 | 2G, 3G, 4G integrate multifrequency antenna and wireless communication terminal |
| CN205122764U (en) * | 2015-10-20 | 2016-03-30 | 锐锋股份有限公司 | Eight Band Antenna |
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| CN106602241A (en) | 2017-04-26 |
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