CN112072313A - Structure for realizing dual-frequency band of magnetoelectric dipole antenna - Google Patents
Structure for realizing dual-frequency band of magnetoelectric dipole antenna Download PDFInfo
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- CN112072313A CN112072313A CN202010874568.1A CN202010874568A CN112072313A CN 112072313 A CN112072313 A CN 112072313A CN 202010874568 A CN202010874568 A CN 202010874568A CN 112072313 A CN112072313 A CN 112072313A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
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Abstract
The invention discloses a dual-band realization structure of a magnetoelectric dipole antenna, and relates to the technical field of antennas. The implementation structure adds a disturbance branch node on a feeder line of the magnetoelectric dipole antenna, generates a stop band in the working frequency band of the antenna, and divides the original working frequency band into two parts, thereby generating the effect of double frequency bands. The disturbance branch section is added, so that the original shape and size of the magnetic electric dipole of the antenna are kept unchanged, and the original occupied space of the antenna is not changed. The size of the disturbance branch node can be adjusted, and the electromagnetic dipole antenna is suitable for the requirements of magnetoelectric dipole antennas of different frequency bands. The disturbance branch knot has a simple structure and a simple and convenient implementation process. The invention can realize double working frequency bands of the magnetoelectric dipole antenna and can be used in a microwave or millimeter wave application system.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a dual-band realization structure of a magnetoelectric dipole antenna, which can be applied to magnetoelectric dipole antennas in different working frequency bands.
Background
With the rapid development of wireless communication technology and the gradual application of 5G technology, the design requirements for antennas in communication systems are continuously increasing, and many challenges are faced. As a broadband directional radiating antenna, a magneto-electric dipole antenna exhibits many performance advantages over the current demands of communication systems. The research of dual-band magnetoelectronics antennas is receiving more and more attention for different operating frequency bands. How to meet the requirement of dual-frequency bandwidth and simultaneously considering the size and the structure of the antenna is a key factor for designing the dual-frequency-band magnetic electric dipole antenna.
Document "A conformal magneto-electric dipole antenna with wide H-plane and band-notch radiation characteristics for sub-6-GHz 5G base-station (Botao Feng; Kwok L. Chung; Jiexin Lai; and Qingsheng Zeng, IEEE Access2019, 7: 17469-17479) "the dual-band operation characteristics of the antenna are realized by adding different sizes of magnetoelectric dipole pairs, but the size and the volume of the antenna are also increased.
The document "Dual-wideband Dual-polarized semiconductor antenna for 4G/5G microcell base station (Congcong Zhu; Bin Wang, Wei Luo, honggan Hao, and Ping Wang,Electronics Letters2020, 56(6): 269-271) "adopts a feeder line with gradually changed width, and designs a dual-frequency broadband magnetoelectric dipole antenna, but the feed network is more complicated.
The literature "Dual-side and magnectic direct antipole with director loaded (Jun Tao, Quanyuang Feng, and Tao Liu,IEEE Antennas and Wireless Propagation Letters2018, 17(10): 1885 and 1889)' the designed magneto-electric dipole antenna has dual-frequency broadband performance by adding an antenna guider and an additional electric dipole, but the antenna structure and the feed network are more complicated.
In the existing dual-band implementation structure of the magnetoelectric dipole antenna, an additional magnetoelectric dipole structure is introduced or the structure of a feed network is changed, which is a main solution, but the occupied space of the antenna and the complexity of the structure are increased to a certain extent. Therefore, how to maintain the original antenna topology to the maximum extent while realizing the dual-frequency operating characteristics is one of the problems that needs to be solved in the present antennas.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a dual-band realization structure of a magnetoelectric dipole antenna. A disturbance branch node is added in a feed network of the magnetoelectric dipole antenna, a stop band is generated in a working frequency band of the existing magnetoelectric dipole antenna, and the working frequency band is divided into two different frequency bands, so that the application of the antenna in different frequency bands is realized.
In order to achieve the above object, the technical scheme adopted by the invention is as follows:
a structure for realizing dual frequency bands of a magnetoelectric dipole antenna comprises the following steps:
step 3, the length of the disturbance branch section can be adjusted according to the requirement, so that the center frequency of the generated stop band is adjusted;
through the four steps, the structure can realize the dual-band working characteristic of the magnetoelectric dipole antenna.
The invention has the beneficial effects that:
(1) the dual-band realization structure of the magnetoelectric dipole antenna is simple and convenient in realization process and is suitable for magnetoelectric dipole antennas in microwave bands and millimeter wave bands.
(2) The structure for realizing the dual-frequency band of the magnetoelectric dipole antenna adopts a mechanical processing or laser etching mode, introduces the disturbance branch node into the feeder line, has a simple structure and is easy to realize in engineering.
(3) According to the dual-band implementation structure of the magnetoelectric dipole antenna, the size of the disturbance branch node can be adjusted, so that the effect of adjusting the working bandwidths of the two frequency bands is achieved.
Drawings
Fig. 1 is a schematic diagram of a disturbance branch node of a dual-band implementation structure of a magnetoelectric dipole antenna according to the present invention.
Fig. 2 is a diagram of an overall structure of an antenna according to embodiment 1 of a structure for implementing dual frequency bands of a magnetoelectric dipole antenna according to the present invention.
Fig. 3 is a comparison graph of return loss simulation of an antenna in embodiment 1 of the structure for implementing dual frequency bands of a magnetoelectric dipole antenna according to the present invention.
Fig. 4 is a simulation diagram of radiation gain in embodiment 1 of the structure for implementing dual frequency bands of a magnetoelectric dipole antenna according to the present invention.
Fig. 5 is a diagram of an overall structure of an antenna according to embodiment 2 of the structure for implementing dual frequency bands of a magnetoelectric dipole antenna according to the present invention.
Fig. 6 is a top view structural diagram of an upper layer of a dielectric plate in embodiment 2 of the structure for implementing dual frequency bands of a magnetoelectric dipole antenna according to the present invention.
Fig. 7 is a comparison graph of return loss simulation of an antenna of embodiment 2 of the structure for implementing dual frequency bands of a magnetoelectric dipole antenna according to the present invention.
Fig. 8 is a simulation diagram of radiation gain in embodiment 2 of the structure for implementing dual frequency bands of a magnetoelectric dipole antenna according to the present invention.
Detailed Description
Example 1
The structure for realizing the dual-frequency band of the magnetoelectric dipole antenna introduces a disturbance branch node into an antenna feeder line, as shown in figure 1. 101 is the integral structure of a feeder line, 102 is the added disturbance branch section and the lengthDIs one quarter of the wavelength in vacuum corresponding to the center frequency of the generated stop band. 101 the material is metal, has certain thickness, and can be finished by machining. In a magnetoelectric dipole antenna operating in the microwave band, it needs to be folded and then added to the antenna, as shown at 103.
The overall structure diagram of the antenna of embodiment 1 of the dual-band implementation structure of the magnetoelectric dipole antenna is shown in fig. 2, and the antenna is composed of magnetoelectric dipole units 201 and 202, a feeder 203, and a ground plate 204. The feed line 203 is shown as 103 in fig. 1, and the ground plate 204 is metal. The excitation signal can be added through the coaxial line connector, the through hole is opened on the grounding plate 204 and is connected with the feeder line 203.
The antenna return loss simulation pair of embodiment 1 of the implementation structure of the dual-band of the magnetoelectric dipole antenna is shown in fig. 3. The solid line and the dotted line in the figure are the return loss curves of the antenna with and without the added perturbation branch of the feeder line 203 in fig. 2, respectively. As can be seen from the figure, after the perturbation branch is added, the center frequency of the generated stopband is 4GHz, the original frequency band of the antenna is divided into two parts, namely 3.11 GHz-3.91 GHz and 4.45 GHz-4.98 GHz, and the return loss in each frequency band is lower than-10 dB.
The radiation gain simulation of embodiment 1 of the dual-band implementation structure of the magnetoelectric dipole antenna is shown in fig. 4. The radiation gains are 7.0 dBi-8.9 dBi and 5.7 dBi-6.5 dBi, respectively, for the two bands in FIG. 3.
The embodiment is suitable for the magnetoelectric dipole antenna in the microwave frequency band, and the frequency can be determined according to the requirement.
Example 2
The overall structure diagram of the antenna of embodiment 2 of the dual-band implementation structure of the magnetoelectric dipole antenna is shown in fig. 5, and the antenna is composed of magnetoelectric dipole units 501, 502, 503 and 504, a feeder 513, a dielectric plate 514 and a ground plane 515, and the ground plane 515 is a dielectric plate copper-clad bottom surface. Magnetoelectric dipole elements 501, 502, 503 and 504 are disposed on a dielectric plate 514, which is a copper foil, and L- shaped slots 505, 506, 507 and 508 are etched therein, respectively. 509. 510, 511 and 512 are four groups of metal via holes, which are respectively connected with the upper layer magnetoelectric dipole and the lower layer ground plane. The excitation signal can be added through the coaxial line connector, via hole on the dielectric plate 514 and connected with the feeder 513.
Fig. 6 shows an upper-layer overlooking structure of a dielectric plate in embodiment 2 of the dual-band implementation structure of the magnetoelectric dipole antenna. In contrast to fig. 5, 601, 602, 603, and 604 are magnetoelectric dipole elements, 605, 606, 607, and 608 are etched L-shaped slots, and 609, 610, 611, and 612 are four sets of metal vias. 613 is the whole structure of the feeder line, 614 is the added disturbance branch section, the lengthdIs one quarter of the wavelength of the dielectric waveguide corresponding to the center frequency of the generated stop band.
Example 2 of the implementation structure of the dual-band of the magnetoelectric dipole antenna is an antenna return loss simulation pair as shown in fig. 7. The solid line and the dotted line in the figure are the return loss curves of the antenna with and without the added disturbing branch segment of the feed line 613 in fig. 6, respectively. As can be seen from the figure, after the perturbation branch is added, the center frequency of the generated stop band is 28GHz, the original frequency band of the antenna is divided into two parts, namely 20.9 GHz-26.8 GHz and 30.2 GHz-34.2 GHz, and the return loss in each frequency band is lower than-10 dB.
The radiation gain simulation of embodiment 2 of the dual-band implementation structure of the magnetoelectric dipole antenna is shown in fig. 8. The radiation gains are 6.1 dBi-6.7 dBi and 6.5 dBi-6.9 dBi, respectively, for the two bands in FIG. 7.
The embodiment is suitable for the magnetoelectric dipole antenna in the millimeter wave frequency band, and the frequency can be determined according to the requirement.
Claims (5)
1. A structure for realizing dual frequency bands of a magnetoelectric dipole antenna comprises the following steps:
step 1, adding a disturbance branch node in a feeder line of a magnetoelectric dipole antenna, and generating a stop band in a working frequency band of the existing magnetoelectric dipole antenna;
step 2, aiming at magnetoelectric dipole antennas working at different frequency bands, the disturbance branch nodes can be bent or straight;
step 3, the length of the disturbance branch section can be adjusted according to the requirement, so that the center frequency of the generated stop band is adjusted;
step 4, the working frequency band of the antenna is divided into two different frequency bands, and the two different frequency bands are suitable for different working requirements;
through the four steps, the structure can realize the dual-band working characteristic of the magnetoelectric dipole antenna.
2. The dual-band implementation structure of the magnetoelectric dipole antenna according to claim 1, wherein a disturbance stub is added to a feed line of the magnetoelectric dipole antenna to generate a stop band in an existing operating frequency band of the magnetoelectric dipole antenna, thereby dividing the operating frequency band of the magnetoelectric dipole antenna into two parts.
3. The dual-band implementation structure of a magnetoelectric dipole antenna according to claim 1, wherein the perturbation stubs can be set to be a meander type and a straight type according to the shape of the feeding line.
4. The dual-band implementation structure of a magnetoelectric dipole antenna according to claim 1, wherein the perturbation stub is a metal mechanical structure or a microstrip line.
5. The dual-band implementation structure of a magnetoelectric dipole antenna according to claim 1, wherein the length of said perturbation branch is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010874568.1A CN112072313A (en) | 2020-08-27 | 2020-08-27 | Structure for realizing dual-frequency band of magnetoelectric dipole antenna |
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| CN202010874568.1A CN112072313A (en) | 2020-08-27 | 2020-08-27 | Structure for realizing dual-frequency band of magnetoelectric dipole antenna |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699655A (en) * | 2009-10-16 | 2010-04-28 | 华南理工大学 | Novel stop band gap ultra wide band antenna |
| CN107994330A (en) * | 2017-11-10 | 2018-05-04 | 鹤壁天海电子信息系统有限公司 | A kind of UHF/VHF broadband planars printed antenna |
| CN109888478A (en) * | 2019-03-13 | 2019-06-14 | 华南理工大学 | A kind of Multifunctional radio-frequency device based on dual polarization magnetoelectricity dipole |
| CN110444870A (en) * | 2019-10-09 | 2019-11-12 | 华南理工大学 | Base station, wideband dual polarized filtering magnetoelectricity dipole antenna and its radiating element |
-
2020
- 2020-08-27 CN CN202010874568.1A patent/CN112072313A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699655A (en) * | 2009-10-16 | 2010-04-28 | 华南理工大学 | Novel stop band gap ultra wide band antenna |
| CN107994330A (en) * | 2017-11-10 | 2018-05-04 | 鹤壁天海电子信息系统有限公司 | A kind of UHF/VHF broadband planars printed antenna |
| CN109888478A (en) * | 2019-03-13 | 2019-06-14 | 华南理工大学 | A kind of Multifunctional radio-frequency device based on dual polarization magnetoelectricity dipole |
| CN110444870A (en) * | 2019-10-09 | 2019-11-12 | 华南理工大学 | Base station, wideband dual polarized filtering magnetoelectricity dipole antenna and its radiating element |
Non-Patent Citations (1)
| Title |
|---|
| 张迪等: "一种新型双频段磁电偶极子天线", 《空军工程大学学报(自然科学版)》 * |
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