Broadband antenna feed source and microwave antenna

Abstract

The invention relates to the technical field of antennas, in particular to a broadband antenna feed source and a microwave antenna, and the broadband antenna feed source comprises a first circular waveguide tube, a choke disc, a dielectric ring, a metal support, an auxiliary reflection block, a circle-to-circle converter and a dual-polarization separator; the bottom end of the first round waveguide tube is connected with the dual-polarization separator through the circle-to-circle converter, the medium ring is arranged on the inner wall of the top end of the first round waveguide tube, the choke disc is arranged at the top end of the first round waveguide tube, and the metal support is arranged on the outer wall of the first round waveguide tube and supports the auxiliary reflection block. The invention also provides a microwave antenna comprising the broadband antenna feed source, and the broadband antenna feed source and the microwave antenna provided by the invention can realize the performance of high XPD and low standing wave through simple processing.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a broadband antenna feed source and a microwave antenna. Background technique [0002] The parabolic antenna is one of the earliest antenna types in the antenna feed system in the communication field. The parabolic antenna reflects the electromagnetic wave emitted by the feed source at the focal point toward the front and keeps it in phase, thereby forming a highly directional beam, or converging parallel beams at the focal point. High directivity is its most notable feature, so it is often used in high-gain applications, such as radio astronomy telescopes, satellite ground receiving stations, fire control radars, microwave relay transmission, etc. Parabolic antennas are often used in communication systems to realize high-capacity aerial microwave link communications. [0003] In recent years, as the requirements for communication quality have become higher and higher, the com...

AI Technical Summary

Problems solved by technology

At present, the high XPD and low standing wave feeds of backbone network antennas in the market are basically realized by adopting copper feedforward illumination feeds. This type of feeds has a narrow frequency band, and the standing waves are mainly through the way of clamping rectangular waveguides. Debugging and debugging are very difficult, and the processing and molding process is complicated, and the price and cost are very high, which seriously restricts the antenna cost and the rapid layout of the network

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