Rotary Adjustable Phase Shifter Based on Rectangular Waveguide Narrow Slot Bridge

Abstract

The invention discloses a rotary adjustable phase shifter based on a rectangular waveguide narrow-side slot bridge, aiming to solve the problems that the phase adjustment speed of the existing phase shifter is limited and the output phase has two processes of increasing and restoring. The invention is composed of a rectangular waveguide narrow-side slot bridge and two phase adjustment arms; the phase adjustment arm is composed of a line-to-circular polarizer and a rotary joint; the rectangular waveguide narrow-side slot bridge has four ports and four microwave transmission channels and the central coupling region; each line-to-circular polarizer is composed of an injection port, a circular waveguide, two waveguide ridges and an end port; the rotary joint is composed of a cylindrical bottom plate and a narrow metal plate, and the rotary joint can rotate around the axis of symmetry. There is an angle difference between the initial states of the two revolving joints. By synchronously rotating the two rotary joints around the same direction, the invention can realize monotonous linear phase adjustment, and can be applied to a target fast tracking system, and the phase adjustment speed of the phase adjustment method is faster than that of the sliding phase adjustment method.

Description

technical field [0001] The invention relates to the field of microwave devices, in particular to a rotary adjustable phase shifter based on a rectangular waveguide narrow-side slot bridge with continuous linear phase adjustment capability. Background technique [0002] High-power microwave (High-Power-Microwave, abbreviated as HPM) generally refers to strong electromagnetic radiation with a frequency between 300 MHz and 300 GHz and a peak power greater than 100 MW or an average power greater than 1 MW. There are various applications of high-power microwaves, mainly including: high-power pulse radar, which is used to accurately distinguish targets in a wide frequency band; high-energy particle radio-frequency accelerators, which are used in high-energy physics and nuclear physics research; Plasma heating and high-power microwave weapons and other fields. [0003] Microwave phase shifter is a common device in the field of microwave and millimeter wave technology. It has a wid...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem that the phase adjustment speed of the existing sliding mechanical adjustment phase shifter is limited, and the output phase has two processes of increasing and recovering, and provides a method to achieve a monotonic phase by mechanically rotating the circular joint. Adjustable Rotary Adjustable Phase Shifter Based on Rectangular Waveguide Narrow Slot Bridge

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