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Dual polarized antenna array and dual polarized phased-array antenna

A dual-polarized antenna and array technology, which is applied to antenna arrays, antenna unit combinations with different polarization directions, antennas, etc., can solve the problems of array cross-polarization deterioration and unbalanced electric field distribution, and achieve suppression of cross-polarization components , Eliminate radiation and suppress surface waves

Pending Publication Date: 2018-08-28
XTR SOLUTIONS
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  • Description
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Problems solved by technology

[0005] For the dual-polarization array fed by the traditional microstrip line, due to the unbalanced distribution of the electric field in the microstrip line, a strong cross-polarization component will be introduced. In addition, the mutual coupling between different polarization feeding networks will also Produces orthogonally polarized components, which can significantly deteriorate the cross-polarization of the array under the influence of several factors

Method used

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Embodiment Construction

[0028] Reference figure 1 , The dual-polarized phased array antenna includes a plurality of dual-polarized antenna arrays 1, the plurality of dual-polarized antenna arrays 1 are arranged side by side along the arrangement direction Y, and a plurality of first metalized vias 151 arranged side by side along the extension direction X are arranged Located between two adjacent dual-polarized antenna arrays. The dual-polarized antenna array 1 is arranged in a multi-layer microstrip structure. The antenna is composed of antenna elements in the horizontal direction. A linear array with a fixed beam is used as a sub-array. Each sub-array is connected to a set of transceiver units with two independent working modes. Several identical sub-arrays are arranged at a distance of about one-half wavelength in the arrangement direction Y, and the input amplitude and phase of each sub-array are controlled by the transceiver unit to form a vertical electronic scan. Considering space constraints, t...

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Abstract

The invention provides a dual polarized antenna array and a dual polarized phased-array antenna. The dual polarized antenna array comprises a polarized feeder component, a coupling slot component, a plurality of radiation patches and a metallized via hole component, wherein the polarized feeder component comprises a first polarized feeder and a second polarized feeder, the coupling slot componentcomprises a plurality of first coupling slots and a plurality of second coupling slots perpendicular to each other, the radiation patches are positioned at the upper layer of the coupling slot component, and a plurality of metallized via holes arranged side by side are positioned between the first coupling slots and the second coupling slots. Through introducing the metallized via hole, each polarized feed network is isolated, so that the cross polarization component caused by cross coupling between the feeders can be effectively inhibited, and the cross polarization isolation of the dual polarized phased-array antenna provided by the scheme is more than 35dB.

Description

Technical field [0001] The invention relates to the field of antennas, in particular to a dual-polarization antenna array and a dual-polarization phased array antenna. Background technique [0002] With the development of radar polarization theory and technology, radars capable of performing multiple tasks at the same time have become a research hotspot in various countries, because they can replace multiple single-function radars, thereby effectively reducing the number of radars. These requirements have an impact on antenna design. Put forward higher requirements, among which the main requirement is that the antenna should have dual-polarization capability. [0003] Multi-polarized phased array radar with accurate polarization measurement capability is an important development trend of multi-functional phased array radar in the future, and has broad application prospects in the fields of weather observation, air defense and antimissile. The accuracy of target polarization inform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q21/24H01Q1/50H01Q1/52
CPCH01Q1/50H01Q1/52H01Q21/0075H01Q21/24
Inventor 包晓军李琳王育才刘远曦刘宏宗辛永豪黄玉宁
Owner XTR SOLUTIONS
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