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Low-profile broadband wide-angle tight coupling antenna unit and array

An antenna unit and antenna array technology, which is applied in the field of radar and communication, can solve the problems of difficult and accurate modulation of antenna unit coupling, difficulty in designing ultra-wideband feeding balun, and small size of antenna array, and achieve simple feeding, processing, assembly and welding The effect of low difficulty and compact structure

Pending Publication Date: 2020-08-11
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electrical size of this kind of antenna unit is small. The advantage is that the antenna array is small in size and the radar scattering cross section is small after the array is formed; it is easy to conform to the shape and reduces the impact on the aerodynamic characteristics of the platform; Various processing, assembly and other issues, such as the high frequency, the coupling between the antenna elements is difficult to adjust accurately, the feeding structure of the antenna and the welding of the RF connector, etc.
In addition, there are also problems such as the difficulty in designing ultra-wideband feed baluns

Method used

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  • Low-profile broadband wide-angle tight coupling antenna unit and array
  • Low-profile broadband wide-angle tight coupling antenna unit and array
  • Low-profile broadband wide-angle tight coupling antenna unit and array

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Embodiment Construction

[0038] Below, the present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0039] A low-profile wide-bandwidth angle tightly coupled antenna unit, which sequentially includes a wide-angle matching layer, a coupling layer, an antenna layer, and a feeding layer from top to bottom;

[0040] The wide-angle matching layer includes a first dielectric substrate;

[0041] The coupling layer includes a second dielectric substrate, on the upper surface of the second dielectric substrate, a semi-coupling patch is provided at each edge position of the opposite side; the semi-coupling patch is located on the first dielectric substrate and the second dielectric substrate between;

[0042] The antenna layer includes a third dielectric substrate; the lower surface of the third dielectric substrate is provided with a metal floor, and a feeding slot is provided in the middle of the metal floor; the upper surface of the third dielectr...

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PUM

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Abstract

The invention discloses a low-profile broadband wide-angle tight coupling antenna unit and array, and belongs to the technical field of radar and communication. The antenna unit comprises a wide-anglematching layer, a coupling layer, an antenna layer and a feed layer, wherein the whole structure is processed by adopting a multi-layer printed board process. The antenna array is formed by arrangingantenna units according to a specified unit spacing rule. According to the antenna unit, a multi-layer printed board processing technology is adopted, so that the assembling and welding difficulty ofthe tightly coupled antenna array in the later period is greatly reduced, and the reliability of the antenna array is also improved; and the antenna array adopts a microstrip line aperture coupling feed structure, so that the design of a broadband balun of a traditional dipole tight coupling array antenna is omitted, and the design difficulty of the tight coupling array antenna is greatly simplified.

Description

technical field [0001] The invention relates to the technical field of radar and communication, in particular to a low profile wide bandwidth angle tightly coupled antenna unit and an array. Background technique [0002] In modern information warfare, the performance requirements for various weapon platforms are constantly increasing, and the functional requirements are gradually diversified. This often requires a large number of various electronic information functional systems to realize search, communication, navigation, electronic reconnaissance and countermeasures, friend-or-foe identification, and situational awareness. And fire control and many other functions. In order to realize these system functions, the platform needs to install many different forms of antennas, which not only occupy a large volume, load and power consumption, but also make the layout on the carrier platform very difficult. Due to the limited size of the platform space, strong electromagnetic in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q21/00H01Q21/06
CPCH01Q1/38H01Q1/48H01Q1/50H01Q21/0075H01Q21/065
Inventor 崔学武位朝垒郭素丽
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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