Polarized rotation retrodirective array

Abstract

The invention discloses a polarized rotation retrodirective array which is composed of a doubly fed square patch, a phase-conjugating mixer and a local oscillator power divider. The polarized rotation retrodirective array can be used in the microwave millimeter wave communication system, radio frequency identification and wireless energy transmission. The advantage is that the polarized rotation retrodirective array can realize backtrace of the orthogonally polarized wave of the wave in any direction, the phase-conjugating circuit is simple in structure, the local oscillation suppression is high, the cost is low and the processing cycle is short.

Description

technical field [0001] The invention belongs to the field of microwave and millimeter wave systems, in particular to a direction backtracking array in the microwave and millimeter wave system. Background technique [0002] The direction backtracking array can automatically forward a signal pointing to the direction of the incoming wave without knowing the direction of the incoming wave. Because it has the characteristic of automatically tracking the incoming wave direction without complex signal processing equipment, it has a great application prospect in the fields of wireless communication, wireless energy transmission, radio frequency transmission and so on. [0003] Existing directional traceback arrays generally transmit and receive at the same frequency, so orthogonal polarization is often used for transceiver isolation. Luxey C et al. disclose a retrodirective transponder with polarization duplexing for dedicated short-range communications [J]. IEEE Transactions on M...

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Problems solved by technology

Luxey C et al. disclose a retrodirective transponder with polarization duplexing for dedicated short-range communications [J]. IEEE Transactions on Microwave Theory & Techniques , 2014,47(9):1910-1915.); However, due to the use of dual-line polarization, the array needs accurate alignment of the transmitting and receiving antennas to avoid polarization loss and is not suitable for communication with moving targets

Choi JH et al. designed a retrodirective array that emits orthogonally polarized waves for incident waves of any polarization (Choi J H, Dong Y, Sun J S, et al. Retrodirective Array Immune to Incident Waves With Arbitrary Polarizations[J ].IEEE Transactions on Antennas&Propagation, 2013,61(12):6008-6013.), this array can reduce the polarization mismatch loss without accurate alignment of the transmitting and receiving antennas; Requires four mixers, four amplifiers, and two phase delay lines, limiting its practicality

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