volume | PIER Journals

2022-02-21

Design of a 120-220 GHz Fourth-Harmonic Mixer

Xu Wang,

Dr. Xu Wang

School of Instrument and Electronics

North University of China

China

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Fushun Nian,

Dr. Fushun Nian

Science and Technology on Electronic Test & Measurement Laboratory

China

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Mo Wang,

Dr. Mo Wang

Ceyear Technologies Co., Ltd

China

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Ding-Hong Jia

Dr. Ding-Hong Jia

School of Information Science and Technology

Southwest Jiaotong University

China

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Progress In Electromagnetics Research Letters, Vol. 103, 31-38, 2022

doi:10.2528/PIERL21121401

Abstract

In this letter, a 120-220 GHz fourth-harmonic mixer based on Schottky diodes is presented. To broaden the bandwidth, a novel diplexer is proposed, which consists of two low-pass filters (LPFs) and a beam lead capacitor. Thanks to the high-pass characteristic of capacitor, the 30-55 GHz local oscillator (LO) signal is efficiently pumped to the diodes. Moreover, a two-level hammer-head configuration is adopted at the LO LPF to block the 120-220 GHz radio frequency (RF) signal. Finally, a 120-220 GHz fourth-harmonic mixer is fabricated and measured. The measurement results show that the conversion loss ranges from 12 to 18 dB within a wide RF relative bandwidth of 58.8%.

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Xu Wang, Fushun Nian, Mo Wang, and Ding-Hong Jia, "Design of a 120-220 GHz Fourth-Harmonic Mixer," Progress In Electromagnetics Research Letters, Vol. 103, 31-38, 2022.
doi:10.2528/PIERL21121401

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