CN110289489B - Omnidirectional antenna - Google Patents
Omnidirectional antenna Download PDFInfo
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- CN110289489B CN110289489B CN201910678964.4A CN201910678964A CN110289489B CN 110289489 B CN110289489 B CN 110289489B CN 201910678964 A CN201910678964 A CN 201910678964A CN 110289489 B CN110289489 B CN 110289489B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
The invention discloses an omnidirectional antenna, which comprises a first oscillator and a second oscillator, wherein the second oscillator is a fan-shaped hollow body formed by a metal plate; the first vibrator comprises a first arc-shaped plate with the same angle shape and size as the second arc-shaped plate of the second vibrator, an upper horizontal L-shaped plate and a lower horizontal L-shaped plate which are welded on the upper side and the lower side of the first arc-shaped plate, the upper horizontal L-shaped plate and the lower horizontal L-shaped plate are all metal plates, the outer edges of the short plates of the two L-shaped plates are all on the same straight line with one vertical straight edge of the second vibrator, a gap is reserved between the first arc-shaped plate and the second arc-shaped plate, and a feed point is arranged on the adjacent vertical edges of the first arc-shaped plate and the second arc-shaped plate; the first arc-shaped plate, the upper and lower horizontal L-shaped plates, the second arc-shaped plate, the first straight plate, the second straight plate and the upper and lower horizontal sector-shaped plates are all copper plates with the thickness of 0.05-0.5 mm. The omnidirectional antenna has the characteristics of simple structure, high efficiency, wide frequency band, small size and low profile.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to an omnidirectional antenna.
Background
The omnidirectional antenna such as the oscillator structure antenna is a common basic form of an ultrahigh frequency or ultrashort wave frequency band omnidirectional antenna, has higher radiation efficiency and good polarization characteristic compared with a microstrip antenna, has the characteristics of good port matching and large power capacity, and is very suitable for being used in television broadcast reception, mobile communication, wireless digital communication, digital broadcasting and the like. However, in many application environments, especially for the use of end users, the characteristics inherent in the large size and narrow frequency band of the dipole structure antenna cannot meet the actual installation requirements. Meanwhile, if the size of the omnidirectional antenna is reduced, the radiation efficiency is reduced, the antenna gain is reduced, the impedance matching difficulty is increased, and the antenna structure is relatively complex. It is one of the focus of recent attention of those skilled in the art to be able to design an omni-directional antenna that meets the above needs.
Disclosure of Invention
The invention aims to solve the technical problem of providing an omnidirectional antenna with the characteristics of high efficiency, wide frequency band, small size and low profile.
The technical scheme of the invention is that the omnidirectional antenna comprises a first oscillator and a second oscillator, wherein the second oscillator is a fan-shaped hollow body formed by a metal plate; the first vibrator include the first arc that is the same with the second arc angle shape size of second vibrator and weld on the upper and lower both sides of first arc level L word shaped plate and lower level L word shaped plate, first arc and upper level L word shaped plate and lower level L word shaped plate are the metal sheet, the outside of the short board of two L word shaped plates all is on same straight line with one of them vertical straight flange of second vibrator, leave the clearance between first arc and the second arc, all be equipped with the feed point on the adjacent vertical limit of first arc and second arc.
After adopting the structure, the omnidirectional antenna has the following advantages: the antenna of the invention is mainly used for television broadcast reception, mobile communication reception and transmission and other related systems for electromagnetic wave signal reception and transmission. The antenna has the advantages that the antenna is designed into the asymmetric first oscillator and the asymmetric second oscillator, the upper horizontal L-shaped plate and the lower horizontal L-shaped plate, namely the upper L-shaped arm and the lower L-shaped arm, are added to the first oscillator and combined with the first arc-shaped plate, so that the impedance matching improvement of the low end of a frequency band is realized, meanwhile, the second oscillator adopts a fan-shaped hollow body formed by metal plates, namely an gradually opened box-shaped structure, the broadband impedance matching is realized, the bending structure is beneficial to reducing the size of the antenna, and the antenna has higher radiation efficiency, namely higher antenna receiving and transmitting efficiency and good dual polarization characteristic, and has wider working frequency range, such as 470MHz to 860MHz, and the port standing wave ratio is less than or equal to 2.0. Namely, the omnidirectional antenna has the characteristics of simple structure, high efficiency, wide frequency band, small size and low profile.
Further, the second vibrator comprises two first straight plates and second straight plates which are formed into 90 degrees by direct metal forming or welding, the heights of the first straight plates and the second straight plates are equal to those of the second arc plates, the first straight plates and the second straight plates are formed by direct metal forming or welding, the second vibrator further comprises an upper horizontal sector plate and a lower horizontal sector plate which are the same in size, the upper sides of the upper horizontal sector plate and the first straight plates, the second straight plates and the second arc plates are formed by direct metal forming or welding, and the lower sides of the lower horizontal sector plate and the first straight plates, the second straight plates and the second arc plates are formed by direct metal forming or welding to form a sector hollow body with an included angle of 90 degrees; one straight edge is the outer edge of the first straight plate. After the structure is adopted, the second oscillator has better broadband impedance matching effect, and the radiation efficiency and the receiving performance of the antenna are further improved.
Further, the first arc-shaped plate, the upper horizontal L-shaped plate, the lower horizontal L-shaped plate, the second arc-shaped plate, the first straight plate, the second straight plate, the upper horizontal sector plate and the lower horizontal sector plate all adopt copper plates with the thickness of 0.05-0.5 mm. After adopting above structure, the receiving and dispatching efficiency of antenna is higher, and the size is smaller.
Further, the width of the gap between the first arc-shaped plate and the second arc-shaped plate is 0.9-2.8 mm. After adopting above structure, can carry out corresponding size clearance adjustment according to the frequency difference, antenna feed characteristic ensures impedance match, can output bigger efficiency and power, the matchability of port is better.
Further, the feed points are two equal in height and are respectively arranged on the adjacent edges of the first arc-shaped plate and the second arc-shaped plate. With the above structure, the feed impedance matching and the maximum output power are ensured.
Further, the heights of the first arc-shaped plate, the second arc-shaped plate, the first straight plate and the second straight plate are 38-42 mm. With the above structure, the low profile characteristics of the antenna are further ensured.
Further, the lengths of the first straight plate and the second straight plate are 88-92 mm, and the radius sizes of the first arc-shaped plate and the second arc-shaped plate are equal to the length sizes of the first straight plate and the second straight plate and are 88-92 mm. With the above structure, the small-size characteristic of the antenna is further ensured.
Further, the shape and the size of the upper horizontal L-shaped plate and the lower horizontal L-shaped plate are the same: the shape of the long plate end edges of the upper horizontal L-shaped plate and the lower horizontal L-shaped plate is the same arc shape as the arc surface of the first arc-shaped plate, the long side edges of the long plates of the upper horizontal L-shaped plate and the lower horizontal L-shaped plate are 77.1-79.1 mm, the short side edges of the long plates of the upper horizontal L-shaped plate and the lower horizontal L-shaped plate are 41.7-42.7 mm, the long side edges of the short plates of the upper horizontal L-shaped plate and the lower horizontal L-shaped plate are 34-36 mm, the short side edges of the short plates of the upper horizontal L-shaped plate and the lower horizontal L-shaped plate are 14-16 mm, and the end edges of the short plates of the upper horizontal L-shaped plate and the lower horizontal L-shaped plate are 19-21 mm; the included angles of the two short sides of the upper horizontal L-shaped plate and the lower horizontal L-shaped plate are 90 degrees, and the included angles of the two long sides of the upper horizontal L-shaped plate and the lower horizontal L-shaped plate are also 90 degrees. After the structure is adopted, the impedance matching improvement effect of the first oscillator on the low end of the frequency band is better, and the small-size characteristic of the antenna is further ensured.
Further, the antenna also comprises a chassis made of insulating materials, the outer contour shape of the chassis is the same as that of the bottom of the omnidirectional antenna, the outer edge of the chassis is provided with an upward convex edge curled edge which is matched with the outer contour size of the bottom of the omnidirectional antenna and sleeved on the outer surface, and the middle of the chassis is provided with an upward convex middle curled edge which is attached to the lower end of the second straight plate. After adopting above structure, the wholeness of antenna is better, and the structure is more stable, and the receiving and dispatching effect is better.
Drawings
Fig. 1 is a schematic diagram of an omni-directional antenna structure of the present invention (a feed point symbol is shown).
Fig. 2 is an enlarged schematic view of a portion of fig. 1 (showing a feed point symbol).
Fig. 3 is a schematic diagram of an omni-directional antenna according to the present invention.
Fig. 4 is a schematic diagram of an omni-directional antenna according to the present invention.
Fig. 5 is a schematic view of the omni-directional antenna of the present invention mounted on a chassis.
Fig. 6 (a), 6 (b), 6 (c), 6 (d), and 6 (e) are simulation diagrams of antenna surface currents of the omni-directional antenna of the present invention when operating frequencies correspond to 500MHz, 590MHz, 620MHz, 710MHz, and 800MHz, respectively.
Fig. 7 is an omni-directional view of the present inventionThe antenna corresponding to 590MHz in operating frequencyH-plane pattern.
Fig. 8 is a diagram of an omni-directional antenna of the present invention at an operating frequency corresponding to 470MHzE-plane pattern.
Figure 9 is a chart of port standing wave ratio for an omni-directional antenna of the present invention with a bandwidth of 470-862 MHz.
The figure shows 1, a first vibrator, 2, a second vibrator, 3, a feed point, 4, a lower horizontal L-shaped plate, 5, an upper horizontal L-shaped plate, 6, an end edge of a short plate, 7, a first arc-shaped plate, 8, a second arc-shaped plate, 9, an upper horizontal fan-shaped plate, 10, a lower horizontal fan-shaped plate, 11, a long plate end edge, 12, a first straight plate, 13, a second straight plate, 14, a chassis, 15, a middle curled edge, 16, an edge curled edge, 17, a gap, 18, an outer edge of the short plate, 19, a long side edge of the long side, 20, a short side edge of the long plate, 21 and a short side edge of the short plate.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings. It should be noted that the description of these embodiments is for aiding in understanding the present invention, but is not to be construed as limiting the invention. In addition, the technical features described in the following embodiments of the present invention may be combined with each other as long as they do not collide with each other.
As shown in fig. 1, 2, 3, 4 and 5
The omnidirectional antenna comprises a first oscillator 1 and a second oscillator 2, wherein the second oscillator 2 is a fan-shaped hollow body formed by a metal plate. The first vibrator 1 comprises a first arc-shaped plate 7 with the same angle shape and size as the second arc-shaped plate 8 of the second vibrator 2, and an upper horizontal L-shaped plate 5 and a lower horizontal L-shaped plate 4 which are formed by direct metal forming such as one-time stamping of metal plates or mutually welded on the upper side and the lower side of the first arc-shaped plate 7. The first arc-shaped plate 7, the upper horizontal L-shaped plate 5 and the lower horizontal L-shaped plate 4 are metal plates, the outer edges 18 of the short plates of the two L-shaped plates are on the same straight line with one vertical straight edge of the second vibrator 2, a gap 17 is reserved between the first arc-shaped plate 7 and the second arc-shaped plate 8, and the gap width between the first arc-shaped plate 7 and the second arc-shaped plate 8 is preferably 0.9-2.8 mm. And the adjacent vertical edges of the first arc-shaped plate 7 and the second arc-shaped plate 8 are respectively provided with a feed point 3. The feed points 3 are preferably two equal in height and are respectively arranged on the adjacent edges of the first arc-shaped plate 7 and the second arc-shaped plate 8. In other words, two feed points 3 of equal height can be provided at any one of the height positions on the adjacent edges of the first arcuate plate 7 and the second arcuate plate 8. The feed point 3 may also be referred to as a balanced feed point. The feed point serves as a receive and transmit antenna output or input, also referred to as a signal output and input port, at the antenna. The first element and the second element form a receiving element of the antenna, and it can be seen from the current radiation diagram, i.e. the current simulation diagram of the antenna surface in fig. 6 below, that the feed point 3 is located at the edge of the adjacent two radians, where the current delivered is at its maximum. The outer edge 18 of the above short plate may also be referred to as the long side of the short plate.
The second vibrator 8 comprises two first straight plates 12 and second straight plates 13 which are mutually 90 degrees and are directly formed by metal, such as one-step stamping of metal plates or mutually welded. The heights of the first straight plate 12 and the second straight plate 13 are equal to the height of the second arc-shaped plate 8, and the first straight plate 12 and the second straight plate 13 are directly metal-molded or welded with the second arc-shaped plate 8. The second vibrator 8 further comprises an upper horizontal sector plate 9 and a lower horizontal sector plate 10 which are the same in size, the upper sides of the upper horizontal sector plate 9, the first straight plate 12, the second straight plate 13 and the second arc plate 8 are directly formed by metal or welded with each other, and the lower sides of the lower horizontal sector plate 10, the first straight plate 12, the second straight plate 13 and the second arc plate 8 are directly formed by metal or welded with each other to form a sector-shaped hollow body with an included angle of 90 degrees. One of the vertical straight edges described above is the outer edge of the first straight panel 12.
The first arc-shaped plate 7, the upper horizontal L-shaped plate 5, the lower horizontal L-shaped plate 4, the second arc-shaped plate 8, the first straight plate 12, the second straight plate 13, the upper horizontal sector-shaped plate 9 and the lower horizontal sector-shaped plate 10 are all preferably copper plates with the thickness of 0.05-0.5 mm, and metal conductors such as tinplate can be adopted. The metallic conductor properties of copper plates are relatively better than those of tin plates. Of course, gold plating and the like may also be used. The metal conductor is also called a metal conductor plate or a metal plate.
The upper horizontal L-shaped plate 5 and the lower horizontal L-shaped plate 4 are used for adjusting the output impedance of the antenna, and can correspondingly adjust the impedance matching value according to the impedance characteristic, so that the impedance matching value is adjusted according to 75 ohm impedance in the design of the inventor, and the impedance can be adjusted to 50 ohm impedance by adjusting the L-shaped plate if 50 ohm impedance is needed for communication.
The heights of the first arc-shaped plate 7, the second arc-shaped plate 8, the first straight plate 12 and the second straight plate 13 are all preferably 38-42 mm.
The length of each of the first straight plate 12 and the second straight plate 13 is preferably 88 to 92mm. The radius dimensions of the first arc-shaped plate 7 and the second arc-shaped plate 8 are equal to the length dimensions of the first straight plate 12 and the second straight plate 13, and are preferably 88-92 mm.
The shape and the size of the upper horizontal L-shaped plate 5 and the lower horizontal L-shaped plate 4 are the same: the shape of the long plate end edges 11 of the upper horizontal L-shaped plate 5 and the lower horizontal L-shaped plate 4 is the same arc shape as the arc surface of the first arc-shaped plate 7, namely the long plate end edges 11 are arc edges. The long sides 19 of the long plates of the upper horizontal L-shaped plate 5 and the lower horizontal L-shaped plate 4 are each preferably 77.1 to 79.1mm. The short sides 20 of the long plates of both the upper horizontal L-shaped plate 5 and the lower horizontal L-shaped plate 4 are preferably 41.7-42.7 mm. The outer edges 18 of the short plates of both the upper horizontal L-shaped plate 5 and the lower horizontal L-shaped plate 4 are preferably 34 to 36mm. The short sides 21 of the short plates of the upper horizontal L-shaped plate 5 and the lower horizontal L-shaped plate 4 are 14-16 mm. The end edges 6 of the short plates of the upper horizontal L-shaped plate 5 and the lower horizontal L-shaped plate 4 are 19-21 mm. The included angles of the two short sides of the upper horizontal L-shaped plate 5 and the lower horizontal L-shaped plate 4 are 90 degrees. The included angles of the two long sides of the upper horizontal L-shaped plate and the lower horizontal L-shaped plate are 90 degrees. The outer edge 18 of the above short plate may also be referred to as the long side of the short plate. The short side 21 of the above short plate may also be referred to as the inner side of the short plate. It will be understood that the two short sides refer to the short sides of the long plate and the short plate, i.e. the inner side of the long plate and the inner side of the short plate. The two long sides refer to the long side of the long plate and the long side of the short plate, namely the outer side of the long plate, namely the outer side, and the outer side of the short plate, namely the outer side.
The omnidirectional antenna of the invention also comprises a chassis 14 made of insulating materials, the outline shape of the chassis 14 is the same as that of the bottom of the omnidirectional antenna, an upward convex edge curled edge 16 matched with the outline size of the bottom of the omnidirectional antenna and sleeved on the outer surface is arranged on the outer edge of the chassis 14, and an upward convex middle curled edge 15 attached to the lower end of the second straight plate 13 is arranged in the middle of the chassis. Such as plastic, bakelite, rubber, and the like.
It will be appreciated that the above-described words upper, lower, front, rear, etc. are for convenience of description, and are not limiting of the present invention, as represented in fig. 3 above, in fig. 4, and below, in fig. 3, in fig. 4, in front.
Fig. 6 is a simulation of the antenna surface currents at different frequencies, from which it can be seen that the antenna excites better current distribution at different frequencies, with large surface currents corresponding to higher antenna radiation and reception and emission performance, i.e. higher radiation efficiency or reception and emission sensitivity. The operating frequencies of fig. 6 (a), 6 (b), 6 (c), 6 (d), and 6 (e) correspond to 500MHz, 590MHz, 620MHz, 710MHz, and 800MHz, respectively. It will be appreciated that if the design size of the product is modified, the design size can be synchronously reduced as above, and the design size can be used for designs with frequency above 800MHz, and can also be used for subsequent mobile signal receiving and transmitting antennas, such as occasions of unmanned vehicles for receiving and transmitting signals, unmanned plane signal transmission and the like.
FIGS. 7 and 8 are directional diagrams of the H-plane and E-plane of the antenna at different operating frequencies, respectively, FIG. 7 shows that the operating frequency corresponds to 590MHzThe time H-plane pattern shows the omnidirectional radiation characteristics of the inventive antenna. FIG. 8 shows that at the operating frequency corresponds to 470MHz and +.>Time E-plane pattern, also showing antenna with element antennaThe omnidirectional radiation characteristic is beneficial to simultaneously receiving radiation sources in different directions due to the small size characteristic of the antenna, and the antenna has wider wave beam on the E surface.
Fig. 9 is a diagram of port standing wave ratio for an antenna bandwidth of 470-862MHz in accordance with the present invention. The port standing wave ratio is shown to be VSWR less than or equal to 2.0 in the working frequency range of 470MHz to 860 MHz; 470MHz 1.3054;550MHz is 1.0584;600MHz is 1.2574;680MHz is 1.5434;750MHz is 1.8438;800MHz is 1.5561;862MHz was 1.8432. The VSWR test shows that the 470-862MHz standing wave characteristic is good, the size of the antenna can be adjusted, the antenna can be applied to signal receiving and transmitting with higher frequency, the impedance characteristic can achieve corresponding effects, and the antenna is ensured to have higher receiving and transmitting efficiency.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An omnidirectional antenna comprising a first element (1) and a second element (2), characterized in that: the second vibrator (2) is a fan-shaped hollow body formed by a metal plate; the first vibrator (1) comprises a first arc-shaped plate (7) with the same angle shape and size as a second arc-shaped plate (8) of the second vibrator (2), an upper horizontal L-shaped plate (5) and a lower horizontal L-shaped plate (4) which are directly formed by metal or welded on the upper side and the lower side of the first arc-shaped plate (7), the upper horizontal L-shaped plate (5) and the lower horizontal L-shaped plate (4) are metal plates, a gap (17) is reserved between the first arc-shaped plate (7) and the second arc-shaped plate (8), and feed points (3) are arranged on adjacent vertical edges of the first arc-shaped plate (7) and the second arc-shaped plate (8);
the second vibrator (2) comprises a first straight plate (12) and a second straight plate (13) which are vertically arranged, and the outer edges (18) of the short plates of the two L-shaped plates are respectively on the same straight line with the upper edge and the lower edge of the first straight plate (12).
2. The omni-directional antenna according to claim 1, wherein: the second vibrator (2) include two and become 90 each other and through direct metal forming or mutual welded first straight board (12) and second straight board (13), the height of first straight board (12) and second straight board (13) all equals with the height of second arc (8), first straight board (12) and second straight board (13) all pass through direct metal forming or mutual welding with second arc (8), still include upper horizontal sector plate (9) and lower horizontal sector plate (10) that the size is the same, upper horizontal sector plate (9) and the upside of first straight board (12), second straight board (13) and second arc (8) pass through direct metal forming or mutual welding, lower horizontal sector plate (10) and first straight board (12), the downside of second straight board (13) and second arc (8) pass through direct metal forming or mutual welding in order to constitute the fan-shaped cavity that the contained angle is 90.
3. The omni-directional antenna according to claim 1, wherein: the copper plate with the thickness of 0.05-0.5 mm is adopted by the first arc-shaped plate (7), the upper horizontal L-shaped plate (5), the lower horizontal L-shaped plate (4), the second arc-shaped plate (8), the first straight plate (12), the second straight plate (13), the upper horizontal sector plate (9) and the lower horizontal sector plate (10).
4. The omni-directional antenna according to claim 1, wherein: the width of the gap (17) between the first arc-shaped plate (7) and the second arc-shaped plate (8) is 0.9-2.8 mm.
5. The omni-directional antenna according to claim 1, wherein: the feed points (3) are two equal in height and are respectively arranged on the adjacent edges of the first arc-shaped plate (7) and the second arc-shaped plate (8).
6. The omni-directional antenna according to claim 2, wherein: the heights of the first arc-shaped plate (7), the second arc-shaped plate (8), the first straight plate (12) and the second straight plate (13) are 38-42 mm.
7. The omni-directional antenna according to claim 2, wherein: the lengths of the first straight plate (12) and the second straight plate (13) are 88-92 mm, and the radius sizes of the first arc-shaped plate (7) and the second arc-shaped plate (8) are equal to the length sizes of the first straight plate (12) and the second straight plate (13) and are 88-92 mm.
8. The omni-directional antenna according to claim 2, wherein: the shape and the size of the upper horizontal L-shaped plate (5) and the shape and the size of the lower horizontal L-shaped plate (4) are the same: the long plate end edges (11) of the upper horizontal L-shaped plate (5) and the lower horizontal L-shaped plate (4) are arc-shaped identical to the arc surface of the first arc-shaped plate (7), the long side edges (19) of the long plates of the upper horizontal L-shaped plate (5) and the lower horizontal L-shaped plate (4) are 77.1-79.1 mm, the short side edges (20) of the long plates of the upper horizontal L-shaped plate (5) and the lower horizontal L-shaped plate (4) are 41.7-42.7 mm, the long side edges of the short plates of the upper horizontal L-shaped plate (5) and the lower horizontal L-shaped plate (4) are 34-36 mm, and the short side edges (21) of the short plates of the upper horizontal L-shaped plate (5) and the lower horizontal L-shaped plate (4) are 14-16 mm; the included angle of two short sides of upper horizontal L-shaped plate (5) and lower horizontal L-shaped plate (4) is 90, and the included angle of two long sides of upper horizontal L-shaped plate (5) and lower horizontal L-shaped plate (4) is 90 too, two short sides refer to the short side (20) of long board and the short side (21) of short board, two long sides refer to the long side (19) of long board and the long side of short board.
9. The omni-directional antenna according to any of claims 1 to 8, wherein: the antenna is characterized by further comprising a chassis (14) made of insulating materials, wherein the outer contour shape of the chassis (14) is the same as that of the bottom of the omnidirectional antenna, an upward convex edge curled edge (16) matched with the outer contour size of the bottom of the omnidirectional antenna and sleeved on the outer surface is arranged at the outer edge of the chassis (14), and an upward convex middle curled edge (15) attached to the lower end of the second straight plate (13) is arranged in the middle of the chassis.
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| CN201910678964.4A CN110289489B (en) | 2019-07-25 | 2019-07-25 | Omnidirectional antenna |
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| CN110289489B true CN110289489B (en) | 2024-03-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101051706A (en) * | 2007-05-09 | 2007-10-10 | 西安海天天线科技股份有限公司 | Wide band air feedback unit for mobile communication base station antenna |
| CN202712411U (en) * | 2011-11-14 | 2013-01-30 | 西安电子科技大学 | Wideband dual-polarization base station antenna radiation unit |
| CN105048085A (en) * | 2015-08-05 | 2015-11-11 | 深圳市共进电子股份有限公司 | Dipole antenna |
| CN109088169A (en) * | 2018-09-30 | 2018-12-25 | 广东通宇通讯股份有限公司 | Super-wide band high-gain horizontally polarized omnidirectional antenna |
| CN210006899U (en) * | 2019-07-25 | 2020-01-31 | 宁波迈立杰电子有限公司 | Omnidirectional antenna |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010082591A1 (en) * | 2009-01-14 | 2010-07-22 | 日本電気株式会社 | Wide band antenna, wear, and personal belongings |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101051706A (en) * | 2007-05-09 | 2007-10-10 | 西安海天天线科技股份有限公司 | Wide band air feedback unit for mobile communication base station antenna |
| CN202712411U (en) * | 2011-11-14 | 2013-01-30 | 西安电子科技大学 | Wideband dual-polarization base station antenna radiation unit |
| CN105048085A (en) * | 2015-08-05 | 2015-11-11 | 深圳市共进电子股份有限公司 | Dipole antenna |
| CN109088169A (en) * | 2018-09-30 | 2018-12-25 | 广东通宇通讯股份有限公司 | Super-wide band high-gain horizontally polarized omnidirectional antenna |
| CN210006899U (en) * | 2019-07-25 | 2020-01-31 | 宁波迈立杰电子有限公司 | Omnidirectional antenna |
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