A 50–70 GHz I/Q modulator with improved sideband suppression using HPF/LPF based quadrature power splitter

Yichien Tsai,Jinglin Kuo,Jenghan Tsai,Kunyou Lin,Huei Wang

Microwave Symposium Digest（2011）

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摘要

This paper presents a 50-70 GHz wideband I/Q modulator with improved sideband suppression. The sideband suppression improvement results from the on-chip HPF/LPF based broadband quadrature power splitter. The I/Q modulator exhibits conversion gain of -6 to -2 dB from 50-70 GHz. The LO-RF isolation is better than 36 dB. The sideband suppression is better than 19 dBc from 50 to 75 GHz.

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关键词

millimetre wave circuits,modulators,hpf-lpf based quadrature power splitter,i-q modulator,lo-rf isolation,broadband quadrature power splitter,frequency 50 ghz to 70 ghz,sideband suppression,hpf/lpf,i/q modulator,quadrature power splitter (qps),indexes,lead

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