A Polarization Adjuster Universal for Broadband Antenna and Horn Antenna

Abstract

The present invention provides a universal polarization adjuster for a broadband antenna and a horn antenna. The universal polarization adjuster has the advantages that: by combining an L-shaped workpiece with a U-shaped workpiece, the universal polarization adjuster can simultaneously satisfy polarization mode adjustment requirements of the broadband antenna and the horn antenna, and can achieve many adjustable polarization angles and a wide application range; by adopting the manufacturing process which combines machining with welding, unit and small-batch production can be facilitated, and production cost is low; the polarization adjuster is simple in adjustment and usage process, and can greatly raise production efficiency; through the design and manufacture of the polarization adjuster, electrical boresights of transmitting and receiving antennas which have been subjected to polarization adjustment are accurately aligned, and electrical boresight alignment does not need to be performed again, therefore, test efficiency is effectively improved, and accuracy and reliability of test data are also greatly improved.

Description

technical field [0001] The invention belongs to the field of radome electrical performance testing, in particular to a polarization adjuster common to broadband antennas and horn antennas. Background technique [0002] The adjustment of the polarization mode of the transmitting and receiving antenna is one of the necessary functions in the electrical performance test of the radome. At present, domestic horn antennas and broadband antennas are generally not equipped with a polarization adjuster when purchasing them. During the electrical performance test of the radome, the polarization adjustment of the horn antenna and broadband antenna is very inconvenient, time-consuming and laborious, and the transmission and reception cannot be guaranteed after polarization adjustment. The main beam of the antenna is on the same axis in space, and the electrical axis alignment of the transmitting and receiving antenna must be re-aligned, which seriously affects the test efficiency and th...

AI Technical Summary

Problems solved by technology

At present, domestic horn antennas and broadband antennas are generally not equipped with a polarization adjuster when purchasing them. During the electrical performance test of the radome, the polarization adjustment of the horn antenna and broadband antenna is very inconvenient, time-consuming and laborious, and the transmission and reception cannot be guaranteed after polarization adjustment. The main beam of the antenna is on the same axis in space, and the electrical axis alignment of the transmitting and receiving antenna must be re-aligned, which seriously affects the test efficiency and the accuracy of test data

In particular, in the radome cross-polarization index test, there are clear regulations on the difference in receiving levels under the two polarization methods (horizontal polarization and vertical polarization). If there is no polarization adjuster, the test before and after polarization adjustment will be The data loses the significance of comparison, and the cross-polarization index of the radome cannot be accurately assessed

Even if the existing antenna polarization adjusters are available in the market, they are single broadband antennas or horn antenna polarization adjusters, and there is no polarization adjuster suitable for both broadband antennas and horn antennas

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