A Dual-polarized Broadband Antenna Array with High Isolation Suspended Microstrip Line Balanced Feed

Abstract

The invention discloses a dual-polarized broadband antenna array with high isolation suspension microstrip line balanced feed. The antenna array mainly consists of an antenna body and a feed network for feeding the antenna body. The antenna body is composed of The antenna unit is arranged, and the antenna unit includes an upper dielectric board, a middle dielectric board, a lower dielectric board, a first polarized coaxial probe and a second polarized coaxial probe, and the upper surface of the upper dielectric board is printed A radiation patch is prepared and connected to the first polarized coaxial probe and the second polarized coaxial probe, and a ground reflection plate is printed on the lower surface of the lower dielectric board. Compared with the prior art, the invention has high isolation, high gain and wide impedance bandwidth.

Description

technical field [0001] The invention relates to wireless communication technology, in particular to a dual-polarized wideband antenna array with high isolation suspension and balanced feeding of microstrip lines. Background technique [0002] In recent years, with the wide application and rapid development of satellite communication, higher requirements are put forward for the antenna design in satellite communication system. Microstrip antennas are attracting more and more attention because of their low profile, light weight, easy conformability, easy processing and diverse feeding methods. However, the feed network of most microstrip antennas is designed as the microstrip line in the middle layer of the printed board, which makes the antenna loss larger; the ordinary dual-polarized microstrip antenna has the best isolation without taking other measures. Generally lower, and due to the dual-polarization feed of the dual-polarized antenna, it is difficult to realize the dua...

AI Technical Summary

Problems solved by technology

However, the feed network of most microstrip antennas is designed as the microstrip line in the middle layer of the printed board, which makes the antenna loss larger; the ordinary dual-polarized microstrip antenna has the best isolation without taking other measures. Generally low, and due to the dual-polarized feeding of dual-polarized antennas, it is difficult to realize the dual-polarized feeding network arrangement of large antenna arrays with single-layer feeders between printed boards

In addition, there is also a dual-polarized antenna array fed by a combination of waveguide and suspended strip line, but its volume is large and its profile is high.

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