CN203205534U

CN203205534U - Dual Mode Dual Feed Antenna

Info

Publication number: CN203205534U
Application number: CN 201320084585
Authority: CN
Inventors: 蔡为闳; 廖文照
Original assignee: Changze Technology Co ltd
Current assignee: Changze Technology Co ltd
Priority date: 2013-02-25
Filing date: 2013-02-25
Publication date: 2013-09-18
Anticipated expiration: 2023-02-25

Abstract

The utility model discloses a bimodulus double-fed antenna contains: a chip antenna and a substrate. The wafer antenna includes: the radiator comprises a carrier, a first radiator, a second radiator, a third radiator, a fourth radiator, an electrode part, an electric connection part and a pattern layer. The chip antenna is electrically connected with the substrate to form an antenna with signal double feed-in. And the structural design of two radiation parallel overlapping coupling joints among the first radiator, the second radiator, the third radiator and the fourth radiator is used for controlling the antenna to different frequency bands, so that the antenna achieves the preset target impedance, resonance frequency, frequency width and radiation effect, and the antenna is effective and can effectively reduce the size of the antenna.

Description

The bimodulus doubly-fed antenna

Technical field

The utility model relates to a kind of antenna, and espespecially a kind of have a satellite navigation system (GPS) and bluetooth (BT) antenna that different frequency range and double-fed enter.

Background technology

Known, present personal pocket electronic installation, in the devices such as Smartphone, panel computer, notebook computer, individual action assistant device, numerical digit music player and guider, all possess the Wireless LAN antenna is arranged (wifi or bluetooth), GPS and FM antenna, to provide the user that public place, company or the family that sets up radio base station arranged, can link by the Wireless LAN antenna that Internet uses or the transmission data on the radio base station, navigate or utilize the FM antenna to receive the FM broadcasting program.

Because employed Wireless LAN antenna, GPS and FM antenna all are to belong to single individuality or design with other aerial integrations on the portable electronic equipment together, these antenna all has under the set volume, if Wireless LAN antenna and FM antenna will be installed on portable electronic equipment when inner, will the account for installing space of portable electronic equipment inside causes the face shaping of portable electronic equipment to dwindle.

When many portable electronic equipments are arranged at present all towards compact appearance design, multiple antenna need be installed again in inside, and under the situation that the volume of each antenna can't dwindle, in the time of must being installed in again same portable electronic equipment inside, certainly will will dwindle the circuit board of portable electronic equipment inside or the volume of other spare part, and just can make Wireless LAN antenna, GPS or FM antenna be installed on this portable electronic equipment inner.Thus, with the difficulty that causes in portable electronic equipment and Antenna Design and the making.

The utility model content

In view of this, the technical problems to be solved in the utility model is to provide a kind of bimodulus doubly-fed antenna that has, the structural design of this two antennas utilization parallel overlapping coupled relation of two radiant bodies separately, control two antennas at different frequency range, and then reach predetermined target impedance, resonance frequency, frequency range and radiation effect, and can effectively dwindle antenna size.

For solving the problems of the technologies described above, the technical solution of the utility model is achieved in that a kind of bimodulus doubly-fed antenna, comprises:

One wafer antenna comprises:

One carrier has an end face and a bottom surface at least on it, have a center on this carrier;

One first radiant body is located at the inner neighbour's end face in this carrier right side, has a first end and a second end on this first radiant body;

One second radiant body is located at this carrier right side inner and be positioned at this first radiant body below and this end face of neighbour, and this first radiant body is parallel overlapping coupling pass with this second radiant body, this second radiant body this first radiant body near the center of this carrier;

One the 3rd radiant body is located at this inner neighbour's end face in carrier left side, and is positioned on the same layer horizontal plane of this carrier with this first radiant body;

One the 4th radiant body, be located at this inside, carrier left side and be positioned at below the 3rd radiant body and the end face of this carrier of neighbour, and be positioned on the same layer horizontal plane of this carrier with this second radiant body, the 3rd radiant body and the 4th radiant body are parallel overlapping coupling and close, the 4th radiant body the 3rd radiant body near the center of this carrier;

One electrode part is located at the bottom surface of this carrier, and this electrode part comprises one first electrode part, one second electrode part, a third electrode section and one the 4th electrode part;

One electrical connection section, be located at this carrier inside, this electrical connection section includes one first electrical connection section, one second electrical connection section, one the 3rd electrical connection section and one the 4th electrical connection section, this this first radiant body of the first electrical connection section electrically connect and this first electrode part, this this second radiant body of the second electrical connection section electrically connect and this second electrode part, the 3rd electrical connection section electrically connect the 3rd radiant body and this third electrode section, the 4th electrical connection section electrically connect the 4th radiant body and the 4th electrode part;

Form first antenna that can receive and transmit with this first radiant body and this second radiant body, the 3rd radiant body and the 4th radiant body form second antenna that can receive and transmit.

Further, this carrier is the ceramic substrate of multilayer or the rectangle that glass mat forms.

Further, this first and second radiant body is the metal material of plates, have a first end and a second end on this first radiant body, have one the 3rd end and one the 4th end on this second radiant body, this first radiant body is during with the parallel overlapping coupling of this second radiant body, the 3rd end of this second radiant body with the first end of this first radiant body center near this carrier, the parallel overlapping coupling of this first radiant body and this second radiant body is closed with coupling area and the coupling distance height of controlling or adjust frequency.

Further, this third and fourth radiant body is the metal material of plates, have a five terminal section and one the 6th end on the 3rd radiant body, have one the 7th end and one the 8th end on the 4th radiant body, the 3rd radiant body is during with the parallel overlapping coupling of the 4th radiant body, the five terminal section of the 3rd radiant body is near the center of this carrier in the 7th end of the 4th radiant body, and the parallel overlapping coupling of the 3rd radiant body and the 4th radiant body is closed with coupling area and the coupling distance height of controlling or adjust frequency.

Further, more include a patterned layer.

Further, this electrode part is metal material, this first electrode part, the second electrode part, third electrode section and the 4th electrode part for wafer antenna can surface mount on a substrate.

Further, this electrical connection section is metal material.

Further, have a ground metal layer and one first hollow-out parts on this substrate front side, the both sides of this first hollow-out parts respectively are extended with one and relatively are referred to as the second hollow-out parts and the 3rd hollow-out parts, have on this first hollow-out parts one with the first contact and second contact of this metal level electrically connect, this the first contact electrically connect has first metal wire sections that is positioned at this second hollow-out parts, has the first signal feed-in line on this second hollow-out parts, this first signal feed-in line has the first termination and the second termination, and the spacing between this first termination and this first metal wire sections forms one first match circuit.

Further, this the second contact electrically connect has second metal wire sections that is positioned at the 3rd hollow-out parts, has the secondary signal feed-in line on the 3rd hollow-out parts, this secondary signal feed-in line has the 3rd termination and the 4th termination, and the spacing between the 3rd termination and this second metal wire sections forms one second match circuit.

Further, have one first grounded metal line and one second grounded metal line between this first contact and the second contact, this the first grounded metal line and this second grounded metal line and this ground metal layer electrically connect, the first electrode part electrically connect of this electrode part is on this first contact, this the second electrode part electrically connect is on this first grounded metal line, this third electrode section electrically connect is on the second contact, and the 4th electrode part electrically connect is on this second grounded metal line.

The technique effect that the utility model reaches is as follows: the utility model provides a kind of bimodulus doubly-fed antenna that has, the structural design of this two antennas utilization parallel overlapping coupled relation of two radiant bodies separately, control two antennas at different frequency range, and then reach predetermined target impedance, resonance frequency, frequency range and radiation effect, and can effectively dwindle antenna size.

Description of drawings

Fig. 1 is bimodulus double-feed antenna stereoscopic schematic diagram of the present utility model.

Fig. 2 is that bimodulus double-feed antenna side of the present utility model is cutd open schematic diagram.

Fig. 3 is substrate front side schematic diagram of the present utility model.

Fig. 4 is wafer antenna of the present utility model and substrate in combination schematic diagram.

Fig. 5 is the local enlarged diagram of Fig. 4.

Fig. 6 is the GPS reflection power ratio curve synoptic diagram of bimodulus doubly-fed antenna of the present utility model.

Fig. 7 is the BT reflection power ratio curve synoptic diagram of bimodulus doubly-fed antenna of the present utility model.

Fig. 8 is the delivering power isolation ratio curve synoptic diagram of bimodulus doubly-fed antenna of the present utility model.

[symbol description]

Wafer antenna 10 carriers 1

End face 11 bottom surfaces 12

13 centers 14, side

The first radiant body 2 first ends 21

The second end 22 second radiant bodies 3

The 4th end 32, the 3rd end 31

The 3rd radiant body 4 five terminal sections 41

The 6th end 42 the 4th radiant body 5

The 8th end 52, the 7th end 51

Electrode part 6 first electrode parts 61

The second electrode part 62 third electrode sections 63

The 4th electrode part 64 electrical connection sections 7

The first electrical connection section 71 second electrical connection sections 72

The 3rd electrical connection section 73 the 4th electrical connection section 74

Patterned layer 8 substrates 9

Ground metal layer 91 first hollow-out parts 92

The second hollow-out parts 921 the 3rd hollow-out parts 922

The first contact 93 first metal wire sections 931

The second contact 94 second metal wire sections 941

First signal feed-in line 95 first terminations 951

The second termination 952 first match circuits 96

Secondary signal feed-in line 97 the 3rd termination 971

The 4th termination 972 second match circuits 98

The first grounded metal line 99 second grounded metal lines 990

Spacing 20 spacings 30.

Embodiment

Existing pass the technical content and a detailed description of the present utility model now cooperate graphic being described as follows:

See also Fig. 1, Fig. 2, bimodulus double-feed antenna stereoscopic of the present utility model, side are cutd open schematic diagram.As shown in the figure: a wafer antenna 10 of bimodulus doubly-fed antenna of the present utility model comprises: a carrier 1, one first radiant body 2, one second radiant body 3, one the 3rd radiant body 4,, one the 4th radiant body 5, an electrode part 6, an electrical connection section 7 and a patterned layer 8.

This carrier 1 is formed rectangular semiconductor die chip antenna by ceramic substrate or the glass mat of multilayer, has at least an end face 11, a bottom surface 12 and two side faces 13 on it, has a center 14 on this carrier 1.

This first radiant body 2, for metal material is made plates, inner neighbour's end face 11 has a first end 21 and a second end 22 on this first radiant body 2 on the right side of establishing this carrier 1.

This second radiant body 3 is made plates for metal material, is located at this carrier 1 right side inner and be positioned at the end face 11 of these the first radiant body 2 belows and this carrier 1 of neighbour.Have one the 3rd end 31 and one the 4th end 32 on this second radiant body 3.This first radiant body 2 and this second radiant body 3 are parallel overlapping coupling and close, the 3rd end 31 that makes this second radiant body 3 first end 31 of this first radiant body 2 near the center 14 of this carrier 1.

The 3rd radiant body 4 for metal material is made plates, is being established the inner neighbour's end face 11 in this carrier 1 left side, and is being positioned on the same layer horizontal plane of this carrier 1 with this first radiant body 2, has a five terminal section 41 and one the 6th end 42 on the 3rd radiant body 4.

The 4th radiant body 5, for metal material is made plates, be located at this carrier 1 left side inner and be positioned at the end face 11 of the 3rd radiant body 2 belows and this carrier 1 of neighbour, and be positioned on the same layer horizontal plane of this carrier 1 with this second radiant body 3, have one the 7th end 51 and one the 8th end 52 on the 4th radiant body 5.The 3rd radiant body 4 and the 4th radiant body 5 are parallel overlapping coupling and close, the 7th end 51 that makes the 4th radiant body 5 the five terminal section 41 of the 3rd radiant body 4 near the center 14 of this carrier 1.

This electrode part 6 is metal material, is located at the bottom surface 12 of this carrier 1, and this electrode part 6 comprises one first electrode part 61, one second electrode part 62, a third electrode section 63 and one the 4th electrode part 64.This first electrode part 61, the second electrode part 62, third electrode section 63 and the 4th electrode part 64 for wafer antennas 10 can surface mount on the substrate (not shown).

This electrical connection section 7 is metal material, and is located at this carrier 1 inside, and this electrical connection section 7 includes one first electrical connection section 71, one second electrical connection section 72, one the 3rd electrical connection section 73 and one the 4th electrical connection section 74.These the first electrical connection section 71 electrically connects this first radiant body 2 and this first electrode part 61.These the second electrical connection section 72 electrically connects this second radiant body 2 and this second electrode part 62.The 3rd electrical connection section 73 electrically connects the 3rd radiant body 4 and this third electrode section 63.The 4th electrical connection section 74 electrically connects the 4th radiant body 5 and the 4th electrode part 64.

This patterned layer 8 is located on the end face 11 of this carrier 1, model, house mark pattern that this patterned layer 8 can printed antenna.

By, this first radiant body 2 and this second radiant body 3 form one and receive or transmit satellite navigation system signal (GPS) employed the first antenna (GPS).Because this first radiant body 2 and the 3 parallel overlapping couplings of this second radiant body are closed, this coupling pass is coupling area and the coupling distance with radiant body, form the two coupling capacitances modulation that mates with each other, adjust control the first antenna band (applicable to the 1.575GHZ antenna) and reach predetermined target impedance, resonance frequency, frequency range and radiation effect, and can effectively dwindle antenna size.In addition, the 3rd radiant body 4 and the 4th radiant body 5 form reception or transmit employed the second antenna of short-range signal (bluetooth antenna BLUETOOTH), close with the 3rd radiant body 4 and the 5 parallel overlapping couplings of the 4th radiant body, this coupling pass is coupling area and the coupling distance with radiant body, form the two coupling capacitances modulation that mates with each other, control the second antenna band (applicable to the 2.4GHZ antenna) and reach predetermined target impedance, resonance frequency, frequency range and radiation effect, and can effectively dwindle antenna size.

See also Fig. 3, Fig. 4 and Fig. 5, the local enlarged diagram of substrate front side of the present utility model, wafer antenna and substrate in combination and Fig. 4.As shown in the figure: when wafer antenna 10 of the present utility model uses, these wafer antenna 10 electrically connects are explained at a substrate 9 with headroom district.

Have a ground metal layer 91 and one first hollow-out parts 92 on these substrate 9 fronts, the both sides of this first hollow-out parts 92 respectively are extended with symmetrical the second hollow-out parts 921 and the 3rd hollow-out parts 922.Have on this first hollow-out parts 92 one with the first contact 93 and second contact 94 of these ground metal layer 91 electrically connects, these the first contact 93 electrically connects have first metal wire sections 931 that is positioned at this second hollow-out parts 921, has first signal feed-in line 95 on this second hollow-out parts 921, this first signal feed-in line 95 has the first termination 951 and one second termination 952, and the spacing 20 between this first termination 951 and this first metal wire sections 931 forms one first match circuit 96.In addition, in these the second contact 94 electrically connects one the second metal wire sections 941 that is positioned at the 3rd hollow-out parts 922 is arranged, has secondary signal feed-in line 97 on the 3rd hollow-out parts 922, the spacing 30 that this secondary signal feed-in line 97 has between one the 3rd termination 971 and 972, the three terminations 971, one the 4th termination and this second metal wire sections 941 forms one second match circuit 98.Between this first contact 93 and the second contact 94, have again one first grounded metal line 99 and one second grounded metal line 990, this first grounded metal line 99 and this second grounded metal line 990 and these ground metal layer 91 electrically connects.

When this wafer antenna 10 and this substrate 69 electrically connect, with the first electrode part 61 electrically connects of this electrode part 6 on this first contact 93, these the second electrode part 62 electrically connects are on this first grounded metal line 99, these third electrode section 63 electrically connects are on the second contact 94, and the 4th electrode part 64 electrically connects are on this second grounded metal line 990.

And in the second termination 952 of this first signal feed-in line 95 and the 4th termination 972 each electrically connect of this secondary signal feed-in line 97 one coaxial cable line (not shown) is arranged, at antenna receiving signal or when transmitting, pass to this first signal feed-in line 95 or this secondary signal feed-in line 97 by this coaxial wire, or pass to this coaxial wire by this first signal feed-in line 95 or this secondary signal feed-in line 97.

See also Fig. 6, the GPS reflection power ratio curve synoptic diagram of bimodulus doubly-fed antenna of the present utility model.As shown in the figure: Δ 1 frequency is-20.277dB that Δ 2 frequencies are-0.5708dB that Δ 3 frequencies are-0.7084dB that Δ 4 frequencies are-0.8700dB at 2.4500000GHZ at 2.5000000GHZ at 2.4000000GHZ at 1.5750000GHZ.

See also Fig. 7, the BT reflection power ratio curve synoptic diagram of bimodulus doubly-fed antenna of the present utility model.As shown in the figure: Δ 1 frequency is-0.6088dB that Δ 2 frequencies are-10.327dB that Δ 3 frequencies are-18.090dB that Δ 4 frequencies are-10.002dB at 2.4500000GHZ at 2.5000000GHZ at 2.3959975GHZ at 1.5750000GHZ.

See also Fig. 8, the delivering power isolation ratio curve synoptic diagram of bimodulus doubly-fed antenna of the present utility model.As shown in the figure: Δ 1 frequency is-19.783dB that Δ 2 frequencies are-19.637dB that Δ 3 frequencies are-19.294dB that Δ 4 frequencies are-19.752dB at 2.4500000GHZ at 2.5000000GHZ at 2.3959975GHZ at 1.5750000GHZ.

The above is preferred embodiment of the present utility model only, is not be used to limiting protection range of the present utility model.

Claims

1. A dual-mode dual-feed antenna, characterized in that, comprising:

A chip antenna, including:

a carrier having at least a top surface and a bottom surface on it, and a center position on the carrier;

A first radiator, located on the right side of the carrier and adjacent to the top surface, the first radiator has a first end and a second end;

A second radiator is located inside the right side of the carrier and is located below the first radiator and adjacent to the top surface. The first radiator and the second radiator are coupled in a parallel overlapping manner. The second radiator closer to the center of the carrier than the first radiator;

A third radiator, located on the left side of the carrier, adjacent to the top surface, and on the same horizontal plane as the first radiator;

A fourth radiator, located inside the left side of the carrier, below the third radiator and adjacent to the top surface of the carrier, and on the same level as the second radiator, the third radiator a coupling that overlaps parallel to the fourth radiator, and the fourth radiator is closer to the center of the carrier than the third radiator;

An electrode part is arranged on the bottom surface of the carrier, and the electrode part includes a first electrode part, a second electrode part, a third electrode part and a fourth electrode part;

An electrical connection part, located inside the carrier, the electrical connection part includes a first electrical connection part, a second electrical connection part, a third electrical connection part and a fourth electrical connection part, the first electrical connection part The first radiator is electrically connected to the first electrode part, the second electrical connection part is electrically connected to the second radiator and the second electrode part, and the third electrical connection part is electrically connected to the third radiator electrically connecting the fourth radiator and the fourth electrode part with the third electrode part and the fourth electrical connection part;

Wherein, the first radiator and the second radiator form a first antenna capable of receiving and transmitting signals, and the third radiator and the fourth radiator form a second antenna capable of receiving and transmitting signals.

2 . The dual-mode dual-feed antenna according to claim 1 , wherein the carrier is a rectangle composed of multi-layer ceramic substrates or glass fiber boards.

3. The dual-mode dual-feed antenna according to claim 2, wherein the first and second radiators are made of sheet metal, and the first radiator has a first end and a first end. Two ends, the second radiator has a third end and a fourth end, when the first radiator and the second radiator are overlapped and coupled in parallel, the third end of the second radiator is relatively The first end of the first radiator is close to the center of the carrier, and the parallel overlapping coupling gates of the first radiator and the second radiator control or adjust the frequency by coupling area and coupling distance.

4. The dual-mode dual-feed antenna according to claim 3, wherein the third and fourth radiators are made of sheet metal, and the third radiator has a fifth end and a first Six ends, the fourth radiator has a seventh end and an eighth end, when the third radiator overlaps with the fourth radiator in parallel, the seventh end of the fourth radiator The fifth end of the third radiator is closer to the center of the carrier, and the coupling gates of the third radiator and the fourth radiator are overlapped in parallel to control or adjust the frequency by coupling area and coupling distance.

5. The dual-mode dual-feed antenna according to claim 4, further comprising a pattern layer.

6. The dual-mode dual-feed antenna according to claim 5, wherein the electrode portion is made of metal, and the first electrode portion, the second electrode portion, the third electrode portion and the fourth electrode portion are used for the chip antenna Can be surface-mounted on a substrate.

7. The dual-mode dual-feed antenna according to claim 6, wherein the electrical connection part is made of metal.

8. The dual-mode dual-feed antenna according to claim 7, characterized in that, there is a grounded metal layer and a first hollow portion on the front surface of the substrate, and a symmetrical pair extends on both sides of the first hollow portion. The second hollow part and the third hollow part, the first hollow part has a first contact point and the second contact point electrically connected with the metal layer, and the first contact point is electrically connected to a first contact point located in the second hollow part. A metal line segment, the second hollow part has a first signal feed-in line, the first signal feed-in line has a first end and a second end, the first end and the first metal line segment The spacing forms a first matching circuit.

9. The dual-mode dual-feed antenna according to claim 8, wherein the second contact is electrically connected to a second metal line segment located in the third hollow portion, and the third hollow portion has a second signal The feeding line, the second signal feeding line has a third terminal and a fourth terminal, and the distance between the third terminal and the second metal line segment forms a second matching circuit.

10. The dual-mode dual-feed antenna according to claim 9, characterized in that there is a first ground metal wire and a second ground metal wire between the first contact and the second contact, and the first ground metal wire and the second ground metal wire are electrically connected to the ground metal layer, the first electrode part of the electrode part is electrically connected to the first contact point, and the second electrode part is electrically connected to the first ground metal wire Above, the third electrode part is electrically connected to the second contact point, and the fourth electrode part is electrically connected to the second ground metal line.