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Planar tight-coupling bipolar ultra-broadband phased array antenna

A phased array antenna and bipolar technology, which is applied to antennas, antenna arrays, antenna arrays that are powered independently, etc., can solve the problems of high cost of broadband phased array antennas, inability to realize modular functions, and complicated production, and achieve Conducive to spatial power synthesis, anti-interference advantages, and the effect of large dynamic range

Pending Publication Date: 2018-06-22
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0007] By improving the existing tightly-coupled antenna array structure and feeder network, introducing ground holes on each monopole of the dipole antenna unit to eliminate common-mode signal interference that affects the performance of broadband antennas, and canceling the existing tightly-coupled antenna feeder network The broadband balun device that must exist in the antenna, the invention can solve the defects of the existing broadband phased array antennas, such as high cost, difficulty in conformal shape, complicated fabrication and inability to realize modular functions

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Embodiment Construction

[0028] The invention is a planar bipolar ultra-wideband phased array antenna based on a tightly coupled dipole unit, which is characterized in that it includes a dielectric substrate layer, a dipole bipolar array element arranged in an array, a feeder network and a covering layer ,Such as figure 1 As shown; the dielectric substrate layer includes a first dielectric layer and a second dielectric layer; the dipole bipolar array element includes a horizontal dipole array element and a vertical dipole array element, wherein the horizontal dipole array The element or vertical dipole array element includes two monopoles arranged symmetrically, each monopole is divided into a broadside and a narrow side, and the broadsides of the two monopoles are opposite and a coupling gap is set; the dipole The horizontal dipole array element and the vertical dipole array element in the bipolar array element are respectively arranged on the upper surface or the lower surface of the first dielectri...

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Abstract

The invention discloses a planar bipolar ultra-broadband phased array antenna based on tight-coupling dipole subunits, and belongs to the technical field of electrocommunication, particularly ultra-broadband phased array antennas. Existing tight-coupling antenna array structures and feeder networks are improved, a grounding hole to the ground is introduced to each monopole of a dipole sub-antenna-unit, therefore, common-mode signal interference which influences the broadband antenna performance is eliminated, a necessary broadband Balun device in the existing tight-coupling antenna feeder networks is removed, and the defects are overcome that existing broadband phased array antennas are high in cost, not easily conformal and complex in manufacturing and cannot achieve the modularized function. The achieved novel planar tight-coupling bipolar ultra-broadband phased array antenna has the advantages of being high in index, broad in frequency band, miniaturized, easily conformal, simple instructure, capable of being assembled in a modularized mode, and can meet the requirements on a new generation of phased array antennas of the development of modern civil mobile communication systemsand military detection radar systems.

Description

technical field [0001] The invention belongs to the technical field of electronic communication, in particular to the field of ultra-wideband phased array antennas. Background technique [0002] Although the traditional wideband array technology has made significant progress in research over the years, it still has problems such as high cost, complicated manufacturing, and difficulty in matching with platforms (airframes, vehicles, and ships, etc.). What's more, due to the high difficulty of manufacturing, it is difficult to extend its operating frequency beyond the Ku-band, and there are often a large number of balun devices in these arrays, making system integration more complicated. [0003] For broadband array antennas, there are currently three main categories: vertical antenna arrays, full planar antenna arrays, and tightly coupled antenna arrays. [0004] Vertical antenna arrays include tapered slot antenna arrays, quasi-dipole antenna arrays, etc., and their working...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q21/06
CPCH01Q1/38H01Q1/50H01Q21/062
Inventor 宁俊松王占平补世荣曾成陈柳
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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