Surface plasmon polariton structure shared high-frequency-ratio dual-band antenna

A technology of surface plasmon and exciter structure, applied in the structural form of radiating elements, antennas, resonant antennas, etc., can solve the problems of high production cost, high profile of dielectric resonance shared antenna, etc., to expand bandwidth, increase gain, and expand working frequency band Effect

Active Publication Date: 2020-04-03
NANTONG UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The traditional dielectric resonance shared antenna has a high profile and high manufacturing cost, so a low-profile broa

Method used

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  • Surface plasmon polariton structure shared high-frequency-ratio dual-band antenna
  • Surface plasmon polariton structure shared high-frequency-ratio dual-band antenna
  • Surface plasmon polariton structure shared high-frequency-ratio dual-band antenna

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[0032] The present invention will be further described in detail below in conjunction with the drawings.

[0033] Such as Figure 1 to Figure 4 As shown, a dual-band antenna with a surface plasmon structure sharing a large frequency ratio includes a millimeter-wave tapered slot end-fire antenna, a microwave planar sleeve monopole omnidirectional antenna; the millimeter-wave tapered slot end-fire antenna, microwave The shared structure of the planar sleeve monopole omnidirectional antenna includes a substrate, a first metal patch 1, a second metal patch 2, a surface plasmon structure 31, and a metalized through hole array 52; the substrate includes a dielectric substrate. The upper layer 41 and the lower layer 43, and the intermediate layer 42 composed of prepreg; the first metal patch 1 is attached to the upper surface of the upper substrate 41; the second metal patch 2 is attached to the lower surface of the lower substrate 43; surface plasmon excitation The element structure 31...

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Abstract

The invention particularly relates to a surface plasmon polariton structure shared high-frequency-ratio dual-band antenna, and belongs to the technical field of antennas. According to the invention, the low-profile compact structure of the antenna is realized through sharing of a plasmon polariton structure and a radiation double-arm structure between a millimeter wave tapered slot end-fire antenna and a microwave planar sleeve monopole omnidirectional antenna, due to the characteristic of the low profile, a metal grid array loaded by the antenna and a surface plasmon polariton structure can jointly form a refractive index gradient lens to improve the gain of the millimeter wave tapered slot end-fire antenna under the condition that the size of the antenna is not increased. According to the invention, the transmission distance of millimeter wave frequency band signals is increased; and through combination of the high-frequency antenna and the low-frequency antenna, the working frequency band of the antenna is expanded, and different radiation modes of different frequency bands are realized.

Description

technical field [0001] The invention specifically relates to a surface plasmon structure sharing large frequency ratio dual-band antenna, which belongs to the technical field of antennas. Background technique [0002] So far, multi-mode resonant antennas have introduced multiple resonance points in the working frequency band to effectively improve the antenna's working bandwidth, but it is difficult for a single multi-mode resonant mode antenna to obtain a larger frequency ratio to cover a wider frequency band. The measure of combining multiple antennas can obtain a controllable frequency ratio, and can also realize the independent design of the antenna, but many designs only use the stacked form, which sacrifices the compact structure of the antenna in order to obtain high isolation. Ways to increase antenna gain include antenna arrays and dielectric resonator antennas, etc., but the feed network of antenna arrays is more complicated, which will cause large losses and reduc...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q5/20H01Q5/55H01Q9/04H01Q9/30H01Q15/02H01Q21/00
CPCH01Q1/38H01Q1/48H01Q1/50H01Q9/0407H01Q9/30H01Q15/02H01Q21/00H01Q5/20H01Q5/55
Inventor 张雪锋曹帅华陈建新
Owner NANTONG UNIVERSITY
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