CN216872255U - Broadband bipolar electromagnetic dipole antenna - Google Patents
Broadband bipolar electromagnetic dipole antenna Download PDFInfo
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- CN216872255U CN216872255U CN202220056610.3U CN202220056610U CN216872255U CN 216872255 U CN216872255 U CN 216872255U CN 202220056610 U CN202220056610 U CN 202220056610U CN 216872255 U CN216872255 U CN 216872255U
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Abstract
The utility model provides a broadband dual-polarized electromagnetic dipole antenna, which comprises an antenna floor, at least one electromagnetic dipole and at least one pair of corresponding gain components, wherein each gain component comprises a high-frequency coupling branch and a low-frequency coupling branch which are arranged in different heights and orientations, and the high-frequency coupling branch and the low-frequency coupling branch are both in an L shape, so that a coupling effect can be generated between the gain components and the electromagnetic dipole, the broadband dual-polarized electromagnetic dipole antenna directly feeds power to the coupling branches in a coupling mode, the coupling branches generate resonant frequency points corresponding to the structures of the coupling branches, high-frequency and low-frequency gains of the antenna can be improved, and compared with the electromagnetic dipole antenna in the prior art, the gain components are only needed to be added without changing the structures of other parts, so that the broadband dual-polarized electromagnetic dipole antenna is easy to deploy and low in cost.
Description
Technical Field
The utility model belongs to the technical field of microwaves, and particularly relates to a broadband dual-polarized electromagnetic dipole antenna.
Background
The broadband dual-polarized electromagnetic dipole antenna has the characteristics of wide beam, broadband characteristics, better directional diagram consistency, capability of receiving polarization in two directions and the like, therefore, the antenna is commonly used in some places with severe communication environments, in order to further improve the communication quality, the antenna is generally made into a directional form to improve the antenna gain, the common way is to add a metal reflector plate at the bottom of the antenna, the height from the antenna radiation patch is 1/4 wavelengths, the electromagnetic wave of the antenna radiates towards various places in space, the electromagnetic wave at the back of the antenna is reflected back when encountering the antenna reflector plate, because the height of the antenna reflector is far from the 1/4 wavelength of the antenna, the wave path difference between the reflected electromagnetic wave and the forward-radiated electromagnetic wave is 1/2 wavelength, and the directions of the electromagnetic waves are consistent and overlapped, so that the directivity of the antenna is enhanced, and the gain of the antenna is improved.
Because the broadband dual-polarized electromagnetic dipole antenna has broadband characteristics, the wavelength difference of high and low frequencies is two times, 1/4 that the distance between the reflector and the antenna is the wavelength of medium frequency is considered in the compromise, and at the moment, the height of the reflector is not integral multiple of 1/2 relative to the high and low frequencies, the wave path difference of electromagnetic waves is not integral multiple of 1/2, and parts of the wave path difference can be mutually offset, so that the gain of the antenna is reduced.
In order to improve the gain, it is often adopted to change the structure of the reflector plate to have a step-like or funnel-like structure, and the principle of this is to change the structure of the reflector plate so that the difference of the wave paths of different frequency bands of the antenna is equal to or approximately equal to an integer multiple of 1/2 wavelengths. However, the gain is improved by adopting the step-shaped or funnel-shaped reflecting plate, the wave path difference of the antenna at a certain height of the step-shaped or funnel-shaped reflecting plate meets or is approximately equal to integral multiple of 1/2 wavelength, at the moment, the antenna gain is improved by the forward superposition of the antenna, but when the size of the antenna reflecting plate is not changed, the improvement of the antenna on high-frequency gain is relatively obvious, the low-frequency wavelength is relatively long, and when the height of the reflecting plate is not lengthened, the improvement of the antenna on low-frequency gain is very small.
SUMMERY OF THE UTILITY MODEL
The present invention is made to solve the above problems, and an object of the present invention is to provide a broadband dual-polarized electromagnetic dipole antenna capable of improving high and low frequency gains of the antenna without changing the shape of a reflector, and the present invention adopts the following technical solutions:
the utility model provides a broadband dual-polarized electromagnetic dipole antenna, which is characterized by comprising: an antenna floor having a square antenna reflection plate; at least one electromagnetic dipole arranged in the middle of the antenna reflector plate and provided with a pair of oppositely arranged and coupled antenna arms; and at least one pair of gain components, which are respectively arranged at the edge close to the antenna reflection plate and respectively correspond to the pair of antenna arms and are used for improving the gain of the broadband dual-polarized electromagnetic dipole antenna, wherein each gain component comprises a high-frequency coupling branch and a low-frequency coupling branch which are both in an L shape.
The broadband dipole electromagnetic dipole antenna according to the present invention may further include a high-frequency coupling branch having an L-shaped opening facing the antenna arm, and a low-frequency coupling branch having an L-shaped opening facing the antenna arm.
The broadband dipole electromagnetic dipole antenna provided by the present invention may further include an L-shaped member, wherein the L-shaped member is vertically disposed on the antenna reflection plate, the L-shaped member is disposed at an end of the L-shaped member, a plane direction of the L-shaped member is aligned with a plane direction of the antenna reflection plate, and a height of the L-shaped member with respect to the antenna reflection plate is 1/4 of the if wavelength.
The broadband dipole electromagnetic dipole antenna according to the present invention may further include a high-frequency coupling branch mounted on the antenna floor via a bracket, wherein a height of the high-frequency coupling branch with respect to the antenna reflection plate is an integral multiple of 1/4 of a high-frequency wavelength.
The broadband bipolar electromagnetic dipole antenna provided by the utility model can also have the technical characteristics that the low-frequency coupling branch is installed on the antenna floor through a support, and the height of the low-frequency coupling branch is consistent with that of the unfilled corner square part.
The broadband bipolar electromagnetic dipole antenna provided by the utility model can also have the technical characteristics that the number of the electromagnetic dipoles is two, the two electromagnetic dipoles are arranged in the middle of the antenna reflector plate in a crossed manner, the four antenna arms face the four corners of the antenna reflector plate respectively, the number of the gain components is two, and the four gain components are arranged at the four corners of the antenna reflector plate respectively and face the corresponding antenna arms respectively.
Utility model with the functions and effects
The broadband bipolar electromagnetic dipole antenna comprises an antenna floor, at least one electromagnetic dipole and at least one pair of corresponding gain components, wherein each gain component comprises a high-frequency coupling branch and a low-frequency coupling branch which are both L-shaped, so that a coupling effect can be generated between the gain components and the electromagnetic dipole, the broadband bipolar electromagnetic dipole antenna directly feeds power to the coupling branches in a coupling mode, and the coupling branches generate resonant frequency points corresponding to the structures of the coupling branches, so that the high-frequency and low-frequency gains of the antenna can be improved.
Drawings
Fig. 1 is a structural diagram of a broadband dual-polarized electromagnetic dipole antenna in an embodiment of the present invention.
Reference numerals:
a wide-band bipolar electromagnetic dipole antenna 10; an antenna floor 11; an antenna reflection plate 111; an electromagnetic dipole 12; an antenna arm 121; a unfilled corner square 1211; an L-shaped piece 1212; a gain component 13; high-frequency coupling branches 131; a high-frequency bracket 132; low frequency coupling stubs 133; a low frequency bracket 134.
Detailed Description
In order to make the technical means, the creation features, the achievement objects and the effects of the present invention easy to understand, the following will specifically describe the broadband dual-polarized electromagnetic dipole antenna of the present invention with reference to the embodiments and the accompanying drawings.
< example >
Fig. 1 is a structural diagram of a broadband dual-polarized electromagnetic dipole antenna in the present embodiment.
As shown in fig. 1, a wide-band dipole electromagnetic dipole antenna 10 (hereinafter, referred to as an antenna 10) includes an antenna floor 11, a pair of electromagnetic dipoles 12, and a plurality of gain elements 13.
The antenna floor 11 is made of a metal material, and has an antenna reflection plate 111 having a square shape and four upwardly turned side portions.
The electromagnetic dipole 12 includes a pair of oppositely disposed and coupled antenna arms 121, as shown in fig. 1, the pair of antenna arms 121 respectively face two opposite corners of the antenna reflection plate 111. The antenna arm 121 is composed of a truncated square 1211 and an L-shaped piece 1212, wherein the truncated square 1211 is in a truncated square shape, is made of a metal material, and serves as an electrode; the L-shaped piece 1212 has an L-shaped section, i.e., an L-shaped rod, and is also made of a metal material to serve as a dipole, a truncated square-shaped piece 1211 is installed at the center of the antenna reflection plate 111 through the L-shaped piece, and the direction of the surface of the truncated square-shaped piece 1211 coincides with the direction of the surface of the antenna reflection plate 111, and the height of the truncated square-shaped piece 1211 with respect to the antenna reflection plate 111 is generally set to 1/4 of the intermediate frequency wavelength.
The electromagnetic dipole 12 is in the form of an antenna feed, and a pair of L-shaped elements 1212 are coupled to feed, so that the antenna 10 has a good wide beam and directivity in both the E-plane and the H-plane.
In addition, in the present embodiment, the number of the electromagnetic dipoles 12 is two, and the electromagnetic dipoles are disposed in the middle of the antenna reflection plate 111 in a cross shape, and accordingly, the number of the antenna arms 121 is four, and the four antenna arms 121 face four corners of the antenna reflection plate 111, respectively.
The gain block 13 is for increasing the gain of the antenna 10, and the gain block 13 includes a high-frequency coupling branch 131, a high-frequency bracket 132, a low-frequency coupling branch 133, and a low-frequency bracket 134. Wherein, the high-frequency coupling branch 131 is L-shaped, made of metal material, and is installed at a position close to the edge of the antenna reflection plate 111 through the high-frequency bracket 132, and the L-shaped opening faces the corresponding antenna arm 121, and the height of the high-frequency coupling branch 131 relative to the antenna reflection plate 111 is an integral multiple of 1/4 of the high-frequency wavelength, in this embodiment, 1/2 of the high-frequency wavelength is adopted due to size limitation; the low frequency coupling branch 133 is also L-shaped and made of a metal material, and is installed near the edge of the antenna reflection plate 111 through the low frequency bracket 134, and the L-shaped opening faces away from the corresponding antenna arm 121, and the height of the low frequency coupling branch 133 relative to the antenna reflection plate 111 should theoretically be 1/4 of the low frequency wavelength, but considering that if the distance between the low frequency coupling branch 133 and the corresponding antenna arm 121 is too long, the coupling current is too small, and the electromagnetic radiation is too weak, therefore in this embodiment, the height of the low frequency coupling branch 133 is set to be consistent with the height of the unfilled corner square 1211 of the antenna arm 121.
In addition, in the present embodiment, the number of the electromagnetic dipoles 12 is two, and accordingly, the number of the booster components 13 is four, corresponding to the four antenna arms 121, and arranged at the four corners of the antenna reflection plate 111.
The coupling branch works on the principle that the electromagnetic wave resonant at high frequency can be emitted by selecting the high-frequency resonance length through the coupling current of the electromagnetic dipole, and the electromagnetic wave of the coupling branch is directionally radiated by adjusting the height of the coupling branch from the reflecting plate, generally 1/2 high-frequency wavelength length, and is superposed with the electromagnetic dipole antenna to improve the gain of the antenna. Therefore, by the arrangement of the present embodiment, the antenna 10 of the present embodiment can increase the gain of high frequency and low frequency by the gain element 13, compared to the electromagnetic dipole antenna without the gain element 13 in the prior art.
Examples effects and effects
According to the broadband bipolar electromagnetic dipole antenna provided by the embodiment, the broadband bipolar electromagnetic dipole antenna comprises an antenna floor, at least one electromagnetic dipole and at least one pair of corresponding gain components, wherein each gain component comprises a high-frequency coupling branch and a low-frequency coupling branch which are both L-shaped, so that a coupling effect can be generated with the electromagnetic dipole, the broadband bipolar electromagnetic dipole antenna directly feeds the coupling branches in a coupling mode, and the coupling branches generate resonant frequency points corresponding to the structures of the coupling branches, so that the high-frequency gain and the low-frequency gain of the antenna can be improved.
Furthermore, the L-shaped openings of the high-frequency coupling branches face away from the corresponding antenna arms, the L-shaped openings of the low-frequency coupling branches face towards the corresponding antenna arms, and the size of the low-frequency coupling branches is larger because the size of the low-frequency coupling branches needs to correspond to the low-frequency wavelength, so that the antenna is favorably miniaturized.
Furthermore, the height of the high-frequency coupling branch is set to be 1/2 of the high-frequency wavelength, and the height of the low-frequency coupling branch is set to be consistent with the antenna arm, so that the electromagnetic wave of the coupling branch can be radiated directionally and superposed with the electromagnetic dipole antenna to improve the gain of the antenna, and the miniaturization of the antenna is facilitated.
In the embodiment, the number of the electromagnetic dipoles is two, the electromagnetic dipoles are intersected in the middle of the antenna ground reflecting plate, the number of the gain assemblies is four, the gain assemblies correspond to the four antenna arms respectively and are arranged at four corners of the antenna reflecting plate, and therefore the gain of the antenna can be improved, the space of the antenna floor is fully utilized, and the antenna ground reflecting plate has the advantage of compact structure.
The above-described embodiments are merely illustrative of specific embodiments of the present invention, and the present invention is not limited to the description of the above-described embodiments.
In the above embodiments, the high-frequency coupling branch and the low-frequency coupling branch are both L-shaped, and in an alternative, the high-frequency coupling branch and the low-frequency coupling branch may also be linear or curved.
Claims (6)
1. A broadband dual-polarized electromagnetic dipole antenna, comprising:
an antenna floor having a square antenna reflection plate;
the electromagnetic dipole is arranged in the middle of the antenna reflector plate and is provided with a pair of oppositely arranged and coupled antenna arms; and
at least one pair of gain components respectively arranged near the edge of the antenna reflection plate and respectively corresponding to the pair of antenna arms for improving the gain of the broadband dual-polarized electromagnetic dipole antenna,
the gain component comprises a high-frequency coupling branch and a low-frequency coupling branch which are both L-shaped.
2. The broadband bipolar electromagnetic dipole antenna of claim 1, wherein:
wherein the L-shaped openings of the high-frequency coupling branches face the corresponding antenna arms,
the L-shaped openings of the low-frequency coupling branches face the opposite direction of the corresponding antenna arms.
3. The broadband bipolar electromagnetic dipole antenna of claim 1, wherein:
wherein the antenna arm comprises a unfilled corner square piece and an L-shaped piece,
the L-shaped piece is vertically arranged on the antenna reflection plate, the unfilled-angle square piece is arranged at the end part of the L-shaped piece, the surface direction of the unfilled-angle square piece is consistent with the surface direction of the antenna reflection plate,
the height of the unfilled corner square piece relative to the antenna reflector plate is 1/4 at the intermediate frequency wavelength.
4. The broadband dual-polarized electromagnetic dipole antenna of claim 3, wherein:
wherein the high-frequency coupling branch is arranged on the antenna floor through a bracket,
the height of the high-frequency coupling branch relative to the antenna reflector plate is integral multiple of 1/4 of high-frequency wavelength.
5. The broadband dual-polarized electromagnetic dipole antenna of claim 3, wherein:
wherein the low-frequency coupling branch is arranged on the antenna floor through a bracket,
the low-frequency coupling branches are consistent with the height of the unfilled corner square piece.
6. The broadband bipolar electromagnetic dipole antenna of claim 1, wherein:
wherein the number of the electromagnetic dipoles is two,
the two electromagnetic dipoles are arranged in the middle of the antenna reflector plate in a crossed manner, the four antenna arms respectively face the four corners of the antenna reflector plate,
the number of gain elements is two pairs,
the four gain components are respectively arranged at four corners of the antenna reflection plate and respectively face the corresponding antenna arms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220056610.3U CN216872255U (en) | 2022-01-10 | 2022-01-10 | Broadband bipolar electromagnetic dipole antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220056610.3U CN216872255U (en) | 2022-01-10 | 2022-01-10 | Broadband bipolar electromagnetic dipole antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216872255U true CN216872255U (en) | 2022-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220056610.3U Active CN216872255U (en) | 2022-01-10 | 2022-01-10 | Broadband bipolar electromagnetic dipole antenna |
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| Country | Link |
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| CN (1) | CN216872255U (en) |
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2022
- 2022-01-10 CN CN202220056610.3U patent/CN216872255U/en active Active
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