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Tightly-coupled ultra-wideband low-profile conformal phased array based on resistance ring loading

A resistance loop, tightly coupled technology, applied in the field of tightly coupled ultra-wideband low-profile conformal phased array and its development, can solve the problems of high profile, insufficient working bandwidth, unfavorable conformality, etc., to reduce the profile, expand the low-frequency bandwidth, Improve the effect of broadband matching

Active Publication Date: 2021-10-19
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to propose a method of enhancing capacitive coupling, loading a resistive frequency-selective structure, and using The power divider plus double balun feed structure realizes the profile height of 0.53 high-frequency wavelengths and the bandwidth of fL-8fL, and the working mode is double-linear polarization, which can realize 45-degree angle scanning

Method used

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  • Tightly-coupled ultra-wideband low-profile conformal phased array based on resistance ring loading
  • Tightly-coupled ultra-wideband low-profile conformal phased array based on resistance ring loading
  • Tightly-coupled ultra-wideband low-profile conformal phased array based on resistance ring loading

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Embodiment Construction

[0025] specific implementation plan

[0026] Such as figure 1 As shown, this embodiment is based on a tight-coupled ultra-wideband low-profile conformal phased array loaded by a resistive ring, consisting of crossed dipoles printed on a double-layer dielectric board, coupled parasitic patches 101, and a polarized symmetric resistive ring structure 200 It consists of a Marchand balun 300 connecting the power splitter and the dipole, a microstrip power splitter 400 placed on a curved floor, and a metal floor 500 with a certain curvature.

[0027] The antenna dielectric substrates are all common dielectric substrates. The radiation patch layer 100 is a two-layer dielectric substrate pressed together. The feed balun is a stripline structure composed of double-layer dielectric boards pressed together. The floor is made of carbon fiber material with double-sided copper coating. The ground on the back of the microstrip power divider and the floor need to be welded together, and ho...

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Abstract

The invention discloses a tightly-coupled ultra-wideband low-profile conformal phased array based on resistance ring loading and a development method thereof. A method for enhancing capacitive coupling is provided, a traditional cross-shaped dipole is improved, a resistive frequency selection surface composed of a micro-strip line and a lumped resistor is loaded between an antenna radiation patch and a floor, and the working bandwidth of the antenna is expanded. A feed structure of a power divider and double-balun is applied, so that better matching can be realized, and the profile height of the antenna is reduced. The whole antenna array is subjected to conformal processing, a light and thin dielectric substrate is applied, a thick and heavy wide-angle impedance matching layer is omitted, the antenna array is lighter, and the metal floor is bent at a certain radian so that the antenna array can be conveniently installed on a working platform. In the fL-8fL frequency band, 45-degree scanning active standing waves can be smaller than 3, and the overall height of the antenna is smaller than 0.53 high-frequency wavelengths.

Description

technical field [0001] The invention belongs to the technical field of antenna engineering, in particular to a tight-coupled ultra-wideband low-profile conformal phased array based on resistance loop loading and a development method thereof. Background technique [0002] Compared with the traditional mechanical scanning antenna, the phased array antenna has the advantages of easy beamforming, arbitrarily changing the beam pointing, and easy formation of multiple beams. Ultra-wideband (UWB) phased arrays have attracted much attention in multifunctional applications, which utilize multiple beams, polarizations, and frequency bands to achieve different functions. [0003] Traditional ultra-wideband antenna units generally have relatively large horizontal or vertical dimensions, and it is difficult to achieve low profile, conformal, thin and light design and many other problems. Based on the above disadvantages, a new type of tightly coupled antenna has emerged in recent years....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/36H01Q1/48H01Q1/50H01Q5/307H01Q5/328H01Q5/50H01Q21/00H01Q21/06
CPCH01Q1/38H01Q1/50H01Q1/36H01Q1/48H01Q5/307H01Q5/50H01Q5/328H01Q21/062H01Q21/0006
Inventor 杨仕文鲍雨生杨锋黄明朱军乔文昇
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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