A Duplexer and Transceiver Shared Millimeter-Wave Array Antenna

Abstract

The invention discloses a duplexer and a transceiving shared millimeter wave array antenna. The duplexer comprises an upstream channel filter, a downstream channel filter and a one-into-two substrateintegrated waveguide structure; the upstream channel filter comprises a first group of resonance cavities formed by metal holes in a surrounding manner; the downstream channel filter comprises a second group of resonance cavities formed by metal holes in a surrounding manner; by controlling the different dimensions of the first group of resonance cavities and the second group of resonance cavities, the transmission bands of the upstream channel filter and the downstream channel filter can be not overlapped; and the one-into-two substrate integrated waveguide structure is used for being in coupled connection with the upstream channel filter and the downstream channel filter separately for receiving signals from the antenna, transmitting the signals received from the antenna to a base band along the downstream channel filter, and transmitting base band signals transmitted along the upstream channel filter to the antenna. By adjusting the dimensional parameters, the frequency bands of theupstream channel filter and the downstream channel filter of the duplexer can be not overlapped, so as to realize transceiving sharing.

Description

technical field [0001] The invention belongs to the technical field of millimeter wave communication, and in particular relates to a duplexer and a common millimeter wave array antenna for transmitting and receiving. Background technique [0002] With the continuous development of communication technology, the spectrum resources of traditional microwave frequency bands are increasingly tight. In order to alleviate this problem, people have gradually shifted their attention to the millimeter wave frequency band with a higher frequency band. Millimeter wave has attracted extensive attention due to its short wavelength, wide frequency bandwidth, and fast transmission rate. In a wireless communication system, both transmission and reception rely on antennas, and frequency selection and noise reduction rely on filters. Therefore, the millimeter wave antenna and filter are the key components in the millimeter wave communication system, and their performance has a crucial impact ...

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned defects, the object of the present invention is to provide a diplexer and a millimeter-wave array antenna for transmitting and receiving, aiming at solving the problem of interface misalignment and coupling at the connection port when the antenna and the duplexer are cascaded. Mismatch and Electromagnetic Leakage

Images