Ultra-wide-band double-ring high-power ferrite phase shifter

Abstract

The invention discloses an ultra-wide-band double-ring high-power ferrite phase shifter and belongs to the field of phase shifters. The phase shifter comprises a dielectric slab, ferrites and a waveguide; the upper and lower surfaces of the dielectric slab are respectively provided with two ferrite layers in sequence; exciting wires penetrate through the two ferrite layers; a first-grade matched dielectric and a second-grade matched dielectric are arranged in an inner chamber of the waveguide; the two ends of the dielectric slab and the two ends of the ferrites are both sequentially connected with the first matched dielectric and the second matched dielectric. The phase shifter is as high as 33% in frequency band width, smaller than 1dB in loss, smaller than 1.5 in standing-wave ratio and larger than 420 degrees in phase shift; meanwhile, the double-ring high-power ferrite phase shifter is in a structural form that a ceramic dielectric is loaded between double ferrite rings, so that the phase shifter has the advantages of high power bearing capacity, low insertion loss, wide frequency band and high finished product rate in processing and lot production.

Description

technical field [0001] The invention relates to the field of phase shifters, in particular to an ultra-wideband double-loop high-power ferrite phase shifter. Background technique [0002] Ferrite devices are widely used in various radar systems, among which waveguide microwave ferrite devices occupy half of the country. Both passive phased array radar and sub-array active phased array radar system need to use a large number of these devices. The waveguide ferrite device can control the amplitude or phase of the passing microwave signal in the antenna feeder, but a certain dielectric matcher must be used to match the ferrite waveguide and the empty waveguide. With the development of radar technology, broadband work has become a development trend, and the conventional matching method used in waveguide microwave ferrite devices has gradually become a bottleneck affecting system bandwidth. [0003] In order to adapt to the development trend of the ferrite phase shifter's worki...

AI Technical Summary

Problems solved by technology

With the development of radar technology, broadband work has become a development trend, and the conventional matching method used in waveguide microwave ferrite devices has gradually become a bottleneck affecting system bandwidth.

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