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Communication Dans Un Congrès Année : 2018

High Dynamic Range Low Power Drive Quadrature Millimeter-Wave Demodulator

Résumé

This paper presents a novel demodulator implemented using a broadband six-port circuit and power detectors. Every single detector uses a pair of parallel Schottky diodes and a 90° hybrid coupler to improve the input match. The V-band demodulation results of the proposed six-port interferometric receiver are presented in a wide range of the local oscillator (LO) power. The detected baseband I/Q measurements results are quasi-linear over the considered LO power from 0 to - 40 dB. Moreover, the high-power drive is not required as in the case of conventional diode mixers. Real time Error Vector Magnitude (EVM) measurements of pseudorandom QPSK sequences are performed using a Vector Signal Analyzer. The results are around 5% over a LO power range of 35 dB. This performance demonstrates the capability of the quadrature interferometric mixer in direct demodulation using low LO power. The proposed circuit is well suited for millimeter-wave wireless communication systems and it can replace conventional mixers in efficient and low-cost homodyne receivers.
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Dates et versions

hal-04423626 , version 1 (29-01-2024)

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Citer

B. Zouggari, D. Hammou, C. Hannachi, S.O. Tatu. High Dynamic Range Low Power Drive Quadrature Millimeter-Wave Demodulator. 2018 48th European Microwave Conference (EuMC), Sep 2018, Madrid, France. pp.255-258, ⟨10.23919/EuMC.2018.8541411⟩. ⟨hal-04423626⟩
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