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Broadband dual-polarized electromagnetic transparent antenna

A dual-polarization and electromagnetic technology, applied in antenna, loop antenna, antenna coupling and other directions, can solve the problems of high-frequency antenna radiation direction distortion, 5G antenna high operating frequency, short operating wavelength, etc., to ensure consistency and good frequency Selectivity, achieve conformal effect

Active Publication Date: 2022-01-21
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The working frequency of 5G antenna is relatively high, so its working wavelength is relatively short, which causes its signal to attenuate quickly and is easily blocked by buildings
This leads to strong electromagnetic interference in the multi-frequency common-aperture antenna, among which the cross-band scattering interference generated by the low-frequency antenna to the high-frequency antenna is the strongest, which will cause serious distortion of the radiation direction of the high-frequency antenna

Method used

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  • Broadband dual-polarized electromagnetic transparent antenna
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  • Broadband dual-polarized electromagnetic transparent antenna

Examples

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Effect test

Embodiment 1

[0043] Such as figure 1 and figure 2 As shown, this embodiment provides a broadband dual-polarized electromagnetic transparent antenna for suppressing cross-band scattering interference ("electromagnetic transparency" means that the radar cross-section of a dual-polarized antenna in a specific frequency band is very small, so that A dual-polarized antenna is electromagnetically invisible to antennas operating in this specific frequency band), the antenna 101 includes a dielectric substrate 301, a reflector 501, baluns 401a, 401b, and two pairs of orthogonal dipole arms, wherein 201a 201c generates +45° polarized radiation for a pair of dipole arms, and 201b and 201d generate -45° polarized radiation for the other pair of dipole arms. The dipole arms 201a-201d are designed on the dielectric substrate 301, the dielectric substrate 301 is fixed on the top of two orthogonal baluns 401a, 401b, the balun 401a is electrically connected with the dipole arms 201a, 201c, and the balun...

Embodiment 2

[0050] Such as Figure 15 As shown, this embodiment provides a broadband dual-polarized electromagnetic transparent antenna for suppressing cross-band scattering interference. The antenna 102 includes a dielectric substrate 302, a reflector 502, baluns 402a, 402b, and two pairs of orthogonal oscillators arms, wherein 202a and 202c generate +45° polarized radiation for a pair of dipole arms, and 202b and 202d generate -45° polarized radiation for another pair of dipole arms. The dipole arms 202a-202d are designed on the dielectric substrate 302, the dielectric substrate 302 is fixed on the top of two orthogonal baluns 402a, 402b, the balun 402a is electrically connected with the dipole arms 202a, 202c, and the balun 402b is connected with the dipole arms 202b, 202d is electrically connected, and the two baluns 402a and 402b are vertically fixed on the reflector 502 .

[0051] Such as Figure 16 As shown, it is a schematic structural diagram of the dipole arm 202a, and the dip...

Embodiment 3

[0053] Such as Figure 17 As shown, this embodiment provides a broadband dual-polarized electromagnetic transparent antenna for suppressing cross-band scatter interference. The antenna 103 includes a dielectric substrate 303, a reflector 503, baluns 403a, 403b, and two pairs of orthogonal oscillators arms, wherein 203a and 203c generate +45° polarized radiation for a pair of dipole arms, and 203b and 203d generate -45° polarized radiation for another pair of dipole arms. The dipole arms 203a-203d are designed on the dielectric substrate 303, the dielectric substrate 303 is fixed on the top of two orthogonal baluns 403a, 403b, the balun 403a is electrically connected with the dipole arms 203a, 203c, and the balun 403b is connected with the dipole arms 203b, 203d is electrically connected, and the two baluns 403a and 403b are vertically fixed on the reflector 503 .

[0054] Such as Figure 18 As shown, it is a schematic structural diagram of the dipole arm 203a, and the dipole...

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Abstract

The invention discloses a broadband dual-polarized electromagnetic transparent antenna which is used for suppressing cross-band scattering interference among multiband antennas. The antenna is mainly characterized in that four oscillator arms are designed on a dielectric substrate, at least one nested opening resonance groove is etched in each oscillator arm, each nested opening resonance groove is composed of an inner opening resonance groove and an outer opening resonance groove, and the scattering suppression frequency band of the antenna is determined according to the size of the nested opening resonance grooves. Two relatively narrow scattering suppression frequency bands can be combined into a wide scattering suppression frequency band by adjusting the sizes of the inner opening resonance groove and the outer opening resonance groove so that broadband scattering suppression is realized, and in the scattering suppression frequency band, and scattering currents on the oscillator arms are mainly distributed near the nested opening resonance grooves in opposite directions. And a scattering field generated by the reverse scattering current can be self-counteracted so that scattering interference generated by the broadband dual-polarization electromagnetic transparent antenna on an antenna working in an action frequency band of the broadband dual-polarization electromagnetic transparent antenna is effectively inhibited, and an electromagnetic transparent effect is further realized.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a broadband dual-polarized electromagnetic transparent antenna for suppressing cross-band scattering interference. Background technique [0002] With the rapid development of the fifth generation (5G) mobile communication technology, the 5G communication system will inevitably coexist with the traditional 2G / 3G / 4G network for a long time. The 5G antenna has a high operating frequency, so its operating wavelength is relatively short, resulting in fast signal attenuation and being easily blocked by buildings. Compared with traditional 2G / 3G / 4G systems, more 5G base stations need to be built to improve the coverage of 5G signals. Adopting the method of independent station construction will greatly increase the construction and operation costs of 5G base stations, and will also exacerbate the shortage of base station site resources. [0003] It is well known in the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/38H01Q1/50H01Q1/52H01Q7/00H01Q15/00H01Q15/24H01Q19/10H01Q21/00H01Q21/30
CPCH01Q1/36H01Q1/38H01Q7/00H01Q15/24H01Q1/52H01Q15/0013H01Q19/104H01Q1/50H01Q21/30H01Q21/0006
Inventor 褚庆昕常玉林
Owner SOUTH CHINA UNIV OF TECH
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