CN210805997U - Broadband omnidirectional/directional pattern reconfigurable antenna - Google Patents
Broadband omnidirectional/directional pattern reconfigurable antenna Download PDFInfo
- Publication number
- CN210805997U CN210805997U CN201921433697.6U CN201921433697U CN210805997U CN 210805997 U CN210805997 U CN 210805997U CN 201921433697 U CN201921433697 U CN 201921433697U CN 210805997 U CN210805997 U CN 210805997U
- Authority
- CN
- China
- Prior art keywords
- feed
- dielectric substrate
- radio frequency
- lambda
- circle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a broadband omnidirectional/directional pattern reconfigurable antenna, which comprises a radiation unit, a feed metal column, a short circuit needle, a floor, a coaxial line, a support column, a dielectric substrate and a radio frequency switch diode for controlling the working mode of the antenna; the medium substrate comprises an upper medium substrate and a lower medium substrate, the radiation unit comprises an inner circle and an outer circular ring, the inner circle and the outer circular ring are loaded on the front surface of the upper medium substrate, the floor is loaded on the back surface of the lower medium substrate, the feed unit comprises a metal circle and a short circuit microstrip line, the feed unit is loaded on the back surface of the upper medium substrate, the short circuit metal column is placed in a gap between the inner circle and the outer circular ring, the short circuit pin is connected with the feed unit and the outer circular ring of the radiation unit, the feed metal column is connected with the floor and the feed unit, and the antenna adopts coupling feed. By controlling the state of the radio frequency switch diode, the antenna can realize the reconstruction of the omnidirectional radiation characteristic and the directional radiation characteristic of the broadband.
Description
Technical Field
The utility model relates to a mobile communication antenna field, in particular to broadband qxcomm technology/directional diagram reconfigurable antenna.
Background
With the progress of scientific technology, the demand of people for information has increased unprecedentedly, so that the communication technology is developed dramatically. As an important branch of the communication field, wireless communication gets widely used in various fields such as national defense and civil life because of getting rid of dependence on physical transmission lines. The antenna is an information access port of the radio equipment, and the quality of the antenna performance directly influences the communication quality of the whole wireless communication system.
Nowadays, wireless communication is gradually accelerated to enter an era of multifunction, large capacity and ultra wide band, and the rapid development of modern wireless communication systems directly leads to the increasing number of subsystems on the same platform, and meanwhile, the number of antennas is correspondingly increased. With the increase of the number of antennas on the same platform, the problems of large volume, high cost, electromagnetic compatibility and the like also synchronously occur. In order to solve these problems, reconfigurable antennas have been developed, which not only meet the development requirements of wireless communication, but also have a simple structure and a small size. Compared with a common antenna, the reconfigurable antenna can improve the spatial degree of freedom so as to improve the system capacity of a wireless communication system, improve the frequency spectrum utilization rate and improve the transmission rate of the communication system.
The existing reconfigurable antenna is mostly reconfigurable by two methods of dynamically changing an antenna radiator or changing a feed circuit of a feed network. The former places the controllable radio frequency switch on the antenna radiator, and the latter places the controllable radio frequency switch on the feed structure. At present, most directional pattern reconfigurable antennas are planar directional reconfigurable antennas, a symmetrical antenna structure is adopted to realize directional pattern reconfiguration, and the antennas with omnidirectional/directional reconfigurable characteristics are fewer. Most of the existing omnidirectional/directional pattern reconfigurable antennas use more radio frequency switch diodes or have the problems of narrower bandwidth and the like, and only three radio frequency diode switches are used for realizing fewer antennas with the broadband omnidirectional/directional pattern reconfigurable function.
SUMMERY OF THE UTILITY MODEL
In order to overcome the shortcomings and deficiencies of the prior art, the utility model provides a broadband qxcomm technology/directional pattern reconfigurable antenna.
The utility model discloses at least, one of following technical scheme realizes.
A broadband omnidirectional/directional pattern reconfigurable antenna comprises a radiation unit, a feed metal column, a short circuit needle, a floor, a coaxial line, a support column, a dielectric substrate and three radio frequency switch diodes for controlling the working mode of the antenna; the radiating unit comprises an inner circle and an outer circular ring concentric with the inner circle, the radiating unit is loaded on the front surface of the upper-layer dielectric substrate, the floor is loaded on the back surface of the lower-layer dielectric substrate, the feeding unit comprises a metal circle and a microstrip line, the metal circle is connected with the microstrip line, the feeding unit is loaded on the back surface of the upper-layer dielectric substrate, the microstrip line of the feeding unit and the outer circular ring of the radiating unit are both connected with the short-circuit pin, the upper-layer dielectric substrate is fixed on the lower-layer dielectric substrate through a supporting column, a feeding metal column is connected with the metal circle of the feeding unit, and the feeding metal column is placed between the upper-layer dielectric substrate and the lower-layer dielectric substrate; the coaxial line is positioned below the lower-layer dielectric substrate, the inner center of the coaxial line is connected with the feed metal column, the outer center of the coaxial line is connected with the floor, the floor is positioned on the back of the lower-layer dielectric substrate, the coaxial line feeds power to the feed unit through the feed metal column, and the feed unit feeds power to the radiation unit in a coupling mode;
the short-circuit metal columns comprise a first short-circuit metal column and a second short-circuit metal column, and the two short-circuit metal columns are symmetrically arranged in a gap between the inner circle and the outer circle;
the three radio frequency switch diodes are respectively: a first radio frequency switch diode, a second radio frequency switch diode, and a third radio frequency switch diode; the first radio frequency switch diode is loaded between the inner circle and the first short circuit metal column; the second radio frequency switch diode is loaded between the inner circle and the second short circuit metal column; the third radio frequency switch diode is loaded on the short-circuit microstrip line of the feed unit.
Further, the inner circle radius of the radiation unit is about 0.094 lambda0Wherein λ is0Is the free space wavelength corresponding to a center frequency of 3.75 GHz.
Further, the radius of the outer ring of the radiation unit is about 0.175 lambda0(ii) a The gap distance between the inner circle and the outer circle is about 0.048 lambda0Wherein λ is0Is the free space wavelength corresponding to a center frequency of 3.75 GHz.
Further, the metal circle radius of the feed unit is about 0.025 lambda0The width of the short-circuit microstrip line of the feed unit is about 0.02 lambda0Length of about 0.156 lambda0And the feeding unit is loaded on the back surface of the upper-layer dielectric substrate.
Further, the first short-circuit metal column and the second short-circuit metal column are respectively about 0.128 lambda away from the center of the circle0The short-circuit metal column has a radius of 0.5mm and a height of about 0.116 lambda0Wherein λ is0Is the free space wavelength corresponding to a center frequency of 3.75 GHz.
Furthermore, the short-circuit pin is simultaneously connected with the short-circuit microstrip line and the outer ring, the radius of the short-circuit pin is 0.5mm, and the height of the short-circuit pin is about 0.01 lambda0The distance from the center of the outer ring is about 0.15 lambda0Wherein λ is0Is the free space wavelength corresponding to a center frequency of 3.75 GHz.
Further, the radius of the floor is about 0.56 lambda0The distance between the floor and the radiating unit is about 0.116 lambda0Wherein λ is0Is a center frequency of 3.75GHz corresponds to the free space wavelength.
Furthermore, the upper dielectric substrate is fixedly connected with the lower dielectric substrate through four support columns.
Furthermore, the support column is an insulating plastic column;
the height of the feed metal column is about 0.106 lambda0Radius of about 0.011 lambda0Wherein λ is0Is the free space wavelength corresponding to a center frequency of 3.75 GHz.
Furthermore, when the first radio frequency switch diode and the second radio frequency switch diode are switched off and the third radio frequency switch diode is switched on, the antenna realizes a directional radiation working mode;
when the first radio frequency switch diode and the second radio frequency switch diode are closed and the third radio frequency switch diode is opened, the antenna realizes an omnidirectional radiation working mode.
The first radio frequency switch diode and the second radio frequency switch diode are loaded between the inner circle and the short circuit metal column; the third radio frequency switch diode is loaded on the feed unit; when the first radio frequency switch diode and the second radio frequency switch diode are disconnected and the third radio frequency switch diode is closed, the antenna realizes a directional radiation working mode; when the first radio frequency switch diode and the second radio frequency switch diode are closed and the third radio frequency switch diode is opened, the omnidirectional radiation working mode is realized.
The radio frequency switch diode loaded between the inner circle and the short circuit metal post and the feed unit is the key for realizing the reconstruction of the omnidirectional/directional diagram in the broadband. Through reasonable control of the switch, the working modes of the radiation unit and the feed unit can be changed, and the antenna adopts a coupling feed method to realize broadband, so that a broadband omnidirectional mode and a directional mode are realized.
The utility model has the advantages that: the antenna has a low-profile compact structure, is simple in structure, easy to manufacture and capable of effectively realizing broadband, and can realize omnidirectional radiation characteristics and directional radiation characteristics by controlling the state of the radio frequency switch diode. The two working modes realize full-band coverage of 3.3GHz-4.2GHz, and meet the requirements of simple structure, less used radio frequency switch diodes and realization of broadband omnidirectional/directional pattern reconstruction.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a broadband omni-directional/directional pattern reconfigurable antenna according to the embodiment;
fig. 2 is a top view of the reconfigurable antenna of the present embodiment;
fig. 3 is a front view of the reconfiguration antenna of the present embodiment;
fig. 4 is a feeding unit of the reconstructed antenna of the embodiment;
fig. 5 is a bandwidth test chart of the reconstructed antenna of the present embodiment;
fig. 6 is a gain test chart of the reconstructed antenna of the present embodiment;
FIG. 7a is the xoz plane directional diagram of the antenna of this embodiment operating at 3.3 GHz;
FIG. 7b is the directional diagram of the yoz plane in the antenna of the present embodiment operating at 3.3 GHz;
FIG. 8a is the xoz plane directional diagram of the antenna of this embodiment operating at 3.8 GHz;
FIG. 8b is the directional diagram of the yoz plane in the antenna of the present embodiment operating at 3.8 GHz;
FIG. 9a is the xoz plane directional diagram of the antenna of this embodiment operating at 4.2 GHz;
FIG. 9b is the directional diagram of the yoz plane in the antenna of the present embodiment operating at 4.2 GHz;
fig. 10a is a xoz plane directional diagram of the omni-directional operating mode of the antenna of the present embodiment at 3.3 GHz;
fig. 10b is the directional diagram of the yoz plane when the antenna of the present embodiment operates in omni-directional mode at 3.3 GHz;
fig. 11a is a xoz plane directional diagram of the omni-directional operating mode of the antenna of the present embodiment at 3.8 GHz;
fig. 11b is the directional diagram of the yoz plane when the antenna of the present embodiment operates in omni-directional mode at 3.8 GHz;
fig. 12a is a xoz plane directional diagram of the omni-directional operating mode of the antenna of the present embodiment at 4.2 GHz;
fig. 12b is the directional diagram of the yoz plane when the antenna of the present embodiment operates in omni-directional mode at 4.2 GHz;
wherein: the antenna comprises a radiating element 1, a radiating element 101, an inner circle 102, an outer circular ring 2, a feed element 201, a circle 202, a microstrip line 3, a feed metal column 41, a first short-circuit metal column 42, a second short-circuit metal column 5, a coaxial line 6, a floor 7, a support column 8, a short-circuit pin 9, a first radio-frequency switch diode 10, a second radio-frequency switch diode 10 and a third radio-frequency switch diode 11.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
As shown in fig. 1, a broadband omni-directional/directional pattern reconfigurable antenna includes a radiation unit 1, a feed unit 2, a feed metal post 3, a short-circuit metal post, a coaxial line 5, a floor 6, a support post 7, a short-circuit pin 8, a dielectric substrate, and three radio-frequency switching diodes for controlling the working mode of the antenna, where the three radio-frequency switching diodes are respectively: a first radio frequency switching diode 9, a second radio frequency switching diode 10 and a third radio frequency switching diode 11; the two layers of the dielectric substrates comprise an upper dielectric substrate and a lower dielectric substrate;
the radiation unit 1 is loaded at the center position of the front surface of the upper-layer dielectric substrate, the radiation unit 1 comprises an inner circle 101 and an outer circular ring 102 concentric with the inner circle 101, and the inner circle 101 is positioned at the center of the upper-layer dielectric substrate; the radius of the inner circle 101 is about 0.096 lambda0The radius of the outer ring 102 is about 0.175 lambda0(ii) a The gap distance between the inner circle 101 and the outer circle 102 is about 0.048 lambda0。λ0Is the free space wavelength corresponding to a center frequency of 3.75 GHz.
The feed unit 2 comprises a metal circle 201 and a microstrip line 202, the feed unit 2 is loaded on the back surface of the upper-layer dielectric substrate, the circle 201 is loaded at the central position of the back surface of the upper-layer dielectric substrate, the microstrip line 202 is loaded on the back surface of the upper-layer dielectric substrate, the short edge of one side of the microstrip line is positioned at the central position of the back surface of the upper-layer dielectric substrate and extends outwards, and a part of the microstrip line 202 and the metal circle 201 are overlapped; the radius of the metal circle 201 is about 0.025 lambda0The width of the microstrip line 202 of the feeding unit 1 is about 0.02 lambda0Length of about 0.156 lambda0. The metal circle 201 is not connected to the inner circle 101.
The short-circuit pin 8 is connected with the short-circuit microstrip line 202 and the outer ring 102 at the same time, the radius of the short-circuit pin 8 is 0.5mm, and the height is about 0.01 lambda0The distance from the center of the outer ring 102 is about 0.15 lambda0。
The short circuit metal column unit comprises a first short circuit metal column 401 and a second short circuit metal column 42 which are symmetrically arranged in a gap between the inner circle 101 and the outer circular ring 102; the first short-circuit metal column 41 and the second short-circuit metal column 42 are respectively about 0.128 lambda away from the center of the circle0Each short-circuit metal column has a radius of 0.5mm and a height of about 0.116 lambda0。
The first radio frequency switch diode 9 is loaded between the inner circle 101 and the first short circuit metal column 41; the second radio frequency switching diode 10 is loaded between the inner circle 101 and the second short circuit metal column 42; the third radio frequency switching diode 11 is loaded on the microstrip line 202 of the feed unit 2.
The floor board 6 is loaded on the front surface of the lower medium substrate, and the radius of the floor board 6 is about 0.56 lambda0The distance between the floor 6 and the radiating element 1 is about 0.116 lambda0。
The upper dielectric substrate is fixed on the lower dielectric substrate through four support columns 7.
As shown in fig. 3, the feeding metal post 3 is connected with a metal circle 201 of the feeding unit 2; the feed metal column 3 is arranged between the upper layer dielectric substrate and the lower layer dielectric substrate and is vertical to the centers of the upper layer dielectric substrate and the lower layer dielectric substrate, and the height of the feed metal column 3 is about 0.106 lambda0Radius of about 0.011 lambda0。
The coaxial line 5 is located below the lower-layer dielectric substrate, the inner center of the coaxial line 5 is connected with the feed metal column 3, the feed metal column 3 is connected with the metal circle 201 of the feed unit 2, the coaxial line 5 feeds electricity to the feed unit 2 through the feed metal column 3, and the feed unit 2 feeds electricity to the radiation unit 1 in a coupling mode.
The thickness of an upper dielectric substrate of the dielectric substrate is 0.8mm, the dielectric constant is 2.2, and the loss tangent of the Rogers 5880 board is 0.0009; the lower dielectric substrate was an FR4 plate material having a dielectric constant of 4.4 and a loss tangent of 0.02. The radiation unit 1 is loaded on the front surface of the upper-layer dielectric substrate, and the feed unit 2 is loaded on the back surface of the upper-layer dielectric substrate.
The distance between the floor 6 and the radiating element 1 is about 0.106 lambda0The radius of the floor 6 is about 0.56 lambda0。
The four support columns 7 are insulating plastic columns.
Fig. 2 is a plan view of the present antenna. A first radio frequency switch diode 9 and a second radio frequency switch diode 10 are loaded on a gap between an inner circle 101 and an outer circle 102 of the radiation unit 1, and the positions of the two radio frequency switch diodes are 180 degrees different; a third rf switching diode 11 is applied to the supply unit 2. When the first radio frequency switch diode 9 and the second radio frequency switch diode 10 are switched off and the third radio frequency switch diode 11 is switched on, the antenna realizes a directional radiation working mode; when the first radio frequency switch diode 9 and the second radio frequency switch diode 10 are closed and the third radio frequency switch diode 11 is opened, the omnidirectional radiation working mode is realized.
Shown in fig. 4 is a feed unit 2. A third rf switching diode 11 is applied to the supply unit 2.
As shown in fig. 5, when the first rf switch diode 9 and the second rf switch diode 10 are turned off and the third rf switch diode 11 is turned on, the antenna realizes a directional radiation operation mode, the return loss parameter at this time is a curve filled with black squares in fig. 5, and the antenna bandwidth can cover 3.3 to 4.21GHz, when the first rf switch diode 9 and the second rf switch diode 10 are turned on and the third rf switch diode 11 is turned off, an omnidirectional radiation operation mode is realized, the return loss parameter at this time is a curve of a triangle △ in fig. 5, and the antenna bandwidth can cover 3.3 to 4.21GHz, and fig. 6 is a gain curve diagram of the antenna in the two operation modes.
The utility model discloses a three radio frequency diode switch has realized that broadband qxcomm technology/directional diagram is restructural. FIGS. 7a and 7b are diagrams of xoz plane and yoz plane patterns, respectively, of the antenna of this embodiment operating at 3.3 GHz; fig. 8a and 8b are diagrams of xoz plane and yoz plane directional diagrams respectively of the antenna directional operation mode of the present embodiment at 3.8 GHz; FIGS. 9a and 9b are diagrams of xoz plane and yoz plane directional patterns, respectively, of the antenna of this embodiment operating at 4.2 GHz; fig. 10a and 10b are diagrams of xoz planes and yoz plane patterns respectively when the antenna of the present embodiment operates in an omnidirectional mode at 3.3 GHz; fig. 11a and 11b are diagrams of xoz planes and yoz planes respectively when the antenna of the present embodiment operates in an omnidirectional mode at 3.8 GHz; fig. 12a and 12b are diagrams of xoz planes and yoz planes, respectively, when the antenna of the present embodiment operates in an omnidirectional mode at 4.2 GHz; the bandwidth of the antenna can cover 3.3-4.2GHz (the relative bandwidth is 24%), the radiation pattern of the two working modes is stable, and the reconstruction of a broadband omnidirectional/directional pattern is realized in a real sense.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (9)
1. A broadband omnidirectional/directional pattern reconfigurable antenna is characterized by comprising a radiation unit (1), a feed unit (2), a feed metal column (3), a short circuit metal column, a short circuit needle (8), a floor (6), a coaxial line (5), a support column (7), a dielectric substrate and three radio frequency switch diodes for controlling the working mode of the antenna; the medium substrate comprises an upper medium substrate and a lower medium substrate, the radiation unit (1) comprises an inner circle (101) and an outer circular ring (102) concentric with the inner circle (101), the radiation unit (1) is loaded on the front surface of the upper medium substrate, the floor (6) is loaded on the back surface of the lower-layer dielectric substrate, the feed unit (2) comprises a metal circle (201) and a microstrip line (202), the metal circle (201) is connected with the microstrip line (202), the feed unit (2) is loaded on the back surface of the upper-layer dielectric substrate, the microstrip line (202) of the feed unit (2) and the outer ring (102) of the radiation unit (1) are both connected with the short-circuit needle (8), the upper dielectric substrate is fixed on the lower dielectric substrate through a support column (7), the feed metal column (3) is connected with the metal circle (201) of the feed unit (2), the feed metal column (3) is arranged between the upper-layer dielectric substrate and the lower-layer dielectric substrate; the coaxial line (5) is positioned below the lower-layer dielectric substrate, the inner center of the coaxial line (5) is connected with the feed metal column (3), the outer center of the coaxial line (5) is connected to the floor (6), the floor (6) is positioned on the back of the lower-layer dielectric substrate, the coaxial line (5) feeds power to the feed unit (2) through the feed metal column (3), and the feed unit (2) feeds power to the radiation unit (1) in a coupling mode;
the short circuit metal columns comprise a first short circuit metal column (41) and a second short circuit metal column (42), and the two short circuit metal columns are symmetrically arranged in a gap between the inner circle (101) and the outer circle ring (102);
the three radio frequency switch diodes are respectively: a first radio frequency switching diode (9), a second radio frequency switching diode (10) and a third radio frequency switching diode (11); a first radio frequency switch diode (9) is loaded between the inner circle (101) and the first short circuit metal column (41); the second radio frequency switch diode (10) is loaded between the inner circle (101) and the second short circuit metal column (42); the third radio frequency switch diode (11) is loaded on the short-circuit microstrip line (202) of the feed unit (2).
2. The wideband omni/directional pattern reconfigurable antenna according to claim 1, characterized in that the radius of the inner circle (101) of the radiating element is 0.094 λ0Wherein λ is0Is the free space wavelength corresponding to a center frequency of 3.75 GHz.
3. The wideband omni/directional pattern reconfigurable antenna according to claim 1, characterized in that the radius of the outer circle (102) of the radiating element (1) is 0.175 λ0(ii) a The gap distance between the inner circle (101) and the outer circle (102) is 0.048 lambda0Wherein λ is0Is the free space wavelength corresponding to a center frequency of 3.75 GHz.
4. The wideband omni/directional pattern reconfigurable antenna according to claim 1, characterized in that the metal circle (201) radius of the feed unit (2) is 0.025 λ0The width of the short-circuit microstrip line (202) of the feed unit (2) is 0.02 lambda0Length of 0.156 lambda0The power supply unit (2) is loaded on the back of the upper dielectric substrate, wherein lambda0Is the free space wavelength corresponding to a center frequency of 3.75 GHz.
5. The wideband omni/directional pattern reconfigurable antenna according to claim 1, wherein the first and second shorted metal posts (41, 42) are each 0.128 λ off center0The short-circuit metal column has a radius of 0.5mm and a height of 0.116 lambda0Wherein λ is0Is the free space wavelength corresponding to a center frequency of 3.75 GHz.
6. The broadband omni-directional/directional pattern reconfigurable antenna according to claim 1, wherein the shorting pin (8) connects the shorting microstrip line (202) and the outer ring (102) at the same time, and the shorting pin (8) has a radius of 0.5mm and a height of 0.01 λ0The distance from the center of the outer ring (102) is 0.15 lambda0Wherein λ is0Is the free space wavelength corresponding to a center frequency of 3.75 GHz.
7. The wideband omni/directional pattern reconfigurable antenna according to claim 1, characterized in that the radius of the floor (6) is 0.56 λ0The distance between the floor (6) and the radiation unit (1) is 0.116 lambda0Wherein λ is0Is the free space wavelength corresponding to a center frequency of 3.75 GHz.
8. The broadband omni-directional/directional pattern reconfigurable antenna according to claim 1, wherein the upper dielectric substrate is fixedly connected with the lower dielectric substrate by four support posts (7).
9. The wideband omni/directional pattern reconfigurable antenna according to claim 1, characterized in that the support columns (7) are insulated plastic columns;
the height of the feed metal post (3) is 0.106 lambda0Radius of 0.011 lambda0Wherein λ is0Is the free space wavelength corresponding to a center frequency of 3.75 GHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921433697.6U CN210805997U (en) | 2019-08-30 | 2019-08-30 | Broadband omnidirectional/directional pattern reconfigurable antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921433697.6U CN210805997U (en) | 2019-08-30 | 2019-08-30 | Broadband omnidirectional/directional pattern reconfigurable antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210805997U true CN210805997U (en) | 2020-06-19 |
Family
ID=71227530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921433697.6U Active CN210805997U (en) | 2019-08-30 | 2019-08-30 | Broadband omnidirectional/directional pattern reconfigurable antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210805997U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444881A (en) * | 2019-08-30 | 2019-11-12 | 华南理工大学 | A kind of wideband omnidirectional/orientation direction figure reconfigurable antenna |
| CN115425415A (en) * | 2022-09-02 | 2022-12-02 | 江西中烟工业有限责任公司 | Millimeter wave frequency-adjustable patch antenna based on short circuit pin and diode loading |
| CN115986424A (en) * | 2023-03-20 | 2023-04-18 | 广东工业大学 | Ultra-wideband vertical polarization patch omnidirectional antenna |
-
2019
- 2019-08-30 CN CN201921433697.6U patent/CN210805997U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444881A (en) * | 2019-08-30 | 2019-11-12 | 华南理工大学 | A kind of wideband omnidirectional/orientation direction figure reconfigurable antenna |
| CN110444881B (en) * | 2019-08-30 | 2024-03-29 | 华南理工大学 | Broadband omnidirectional/directional pattern reconfigurable antenna |
| CN115425415A (en) * | 2022-09-02 | 2022-12-02 | 江西中烟工业有限责任公司 | Millimeter wave frequency-adjustable patch antenna based on short circuit pin and diode loading |
| CN115425415B (en) * | 2022-09-02 | 2023-09-12 | 江西中烟工业有限责任公司 | Millimeter wave frequency adjustable patch antenna based on short-circuit needle and diode loading |
| CN115986424A (en) * | 2023-03-20 | 2023-04-18 | 广东工业大学 | Ultra-wideband vertical polarization patch omnidirectional antenna |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110444881B (en) | Broadband omnidirectional/directional pattern reconfigurable antenna | |
| CN105720361B (en) | A kind of broadband low section dual-polarization omnidirectional antenna based on Artificial magnetic conductor structure | |
| Parchin et al. | Dual-polarized MIMO antenna array design using miniaturized self-complementary structures for 5G smartphone applications | |
| CN210805997U (en) | Broadband omnidirectional/directional pattern reconfigurable antenna | |
| EP2736117B1 (en) | Ultra-wideband dual-band cellular basestation antenna | |
| KR100997895B1 (en) | Dual feed multi-band planar antenna | |
| CN103794879B (en) | The miniaturized H face omnidirectional scanning beam switchable antenna perpendicular to antenna plane | |
| CN109863645A (en) | Ultra wide bandwidth low-frequency band radiating element | |
| CN111082202A (en) | Left/right hand circularly polarized antenna with reconfigurable directional diagram | |
| US11258177B2 (en) | Antenna unit, array antenna, and electronic device | |
| CN109980343B (en) | Omnidirectional/directional pattern reconfigurable and polarization reconfigurable antenna | |
| CN109301486B (en) | Single-layer patch type microwave millimeter wave cross-frequency-band dual-polarized radiation unit for 5G mobile communication | |
| CN109494458A (en) | A kind of compact vertical polarized antenna of the low section of directional diagram reconstructable | |
| CN112563741B (en) | Dual-frequency dual-polarization micro base station antenna suitable for 5G full frequency band and dual-antenna system | |
| CN103199337A (en) | Circularly polarized microstrip antenna | |
| CN210272663U (en) | Left/right hand circularly polarized antenna with reconfigurable directional diagram | |
| US20220328974A1 (en) | Reconfigurable Antenna and Network Device | |
| CN109560387B (en) | Millimeter wave dual-polarized antenna for mobile terminal | |
| CN113594705B (en) | Low-profile common-caliber dual-polarized omnidirectional antenna | |
| CN113517558B (en) | High-isolation 5G base station antenna and wireless communication terminal | |
| CN209516012U (en) | A kind of omnidirectional/orientation direction figure is restructural and polarization reconfigurable antenna | |
| CN111146598A (en) | Electronic control beam scanning antenna based on active frequency selection surface | |
| CN209001141U (en) | A kind of controllable paster antenna of small beams based on restructural parasitic element | |
| Ha et al. | Reconfigurable Beam‐Steering Antenna Using Dipole and Loop Combined Structure for Wearable Applications | |
| Kowalewski et al. | A miniaturized pattern reconfigurable antenna for automotive applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |