Polarization torsion active angle reflection direction backtracking system

Abstract

The invention discloses a polarization torsion active angle reflection direction backtracking system. An active polarization torsion antenna array, a first polarization selection surface and a secondpolarization selection surface are orthogonal pairwise and spliced to form a trihedral corner reflector. Direction backtracking and polarization torsion of microwave signals are achieved by means of mirror reflection of the active polarization torsion antenna array and the polarization selection surface so as to improve receiving and transmitting isolation. Besides, the active characteristic of the polarized torsion antenna array is utilized, and power amplification of backtracking signals can be realized according to the requirements of the application environment. The system is suitable forthe fields of radar, microwave power transmission, satellite communication and the like and has the characteristics of high transceiving isolation, controllable echo power and the like and has a simple design process and can be produced in batches by adopting a printed circuit technology.

Description

technical field [0001] The invention belongs to the antenna array technology, in particular to a polarization reverse active angle reflection direction backtracking system. Background technique [0002] The direction-retrospecting array has the characteristic of automatically tracking the direction of incoming waves without complex signal processing equipment, and has great application prospects in the fields of radar, wireless communication, and microwave energy transmission. At present, there are mainly three ways to realize direction backtracking: Van Atta array, phase conjugate array (PON array) and corner reflector. Among them, Van Atta array uses space conjugation to realize phase conjugation, and its disadvantage is that the equal-length feed network design It is more complicated; the PON array can be traced back to a wide range of angles, but requires a large number of mixers and local oscillator feed networks, and the cost is high; corner reflectors are mostly passi...

AI Technical Summary

Problems solved by technology

At present, there are mainly three ways to realize direction backtracking: Van Atta array, phase conjugate array (PON array) and corner reflector. Among them, Van Atta array uses space conjugation to realize phase conjugation, and its disadvantage is that the equal-length feed network design It is more complex; the PON array can be traced back to a wide range of angles, but requires a large number of mixers and local oscillator feed networks, and the cost is high; corner reflectors are mostly passive systems, working in a single polarization mode and the echo power Low, unable to meet the application requirements for multi-function, high transceiver isolation, and long-distance transmission in radar, communication, and wireless energy transmission systems

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