A 200&#x2013;240 GHz Sub-Harmonic Mixer Based on Half-Subdivision and Half-Global Design Method

Jianhang Cui; Yong Zhang; Yuehang Xu; Longfang Ye; Fei Xiao; Bo Yan; Ruimin Xu

doi:10.1109/ACCESS.2020.2973647

IEEE Access (Jan 2020)

A 200–240 GHz Sub-Harmonic Mixer Based on Half-Subdivision and Half-Global Design Method

Jianhang Cui,
Yong Zhang,
Yuehang Xu,
Longfang Ye,
Fei Xiao,
Bo Yan,
Ruimin Xu

Affiliations

Jianhang Cui: ORCiD; School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
Yong Zhang: ORCiD; School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
Yuehang Xu: ORCiD; School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
Longfang Ye: ORCiD; School of Electronic Science and Engineering, Xiamen University, Xiamen, China
Fei Xiao: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
Bo Yan: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
Ruimin Xu: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China

DOI: https://doi.org/10.1109/ACCESS.2020.2973647
Journal volume & issue: Vol. 8
pp. 33461 – 33470

Abstract

Read online

For the terahertz harmonic mixer, a design model based on Half-Subdivision and Half-Global Design Method (HS-HGDM) with a single functional unit is proposed. The single functional unit circuit of the mixer, such as LO or IF Low Pass Filter (LPF), is designed by Subdivision Design Method (SDM), and the rest circuits of the mixer are designed by Global Design Method (GDM). The harmonic mixer based on this model is characterized by simple circuit structure, low conversion loss, small circuit size and high stability. In this paper, an improved Compact Suspended Micro-strip Resonators (CSMRs) filter is developed for the IF part of sub-harmonic mixer. The remaining circuits consist of some basic transmission units, such as the High-Z Low-Z impedance Transmission Lines (H-Z L-Z TLs) applied for main circuit, and full/reduced height WR4.3/WR8 applied for providing RF/LO signal. In RF frequency range 200-240 GHz, a Single Sideband (SSB) conversion loss of 7.36±0.76 dB operating at IF frequency 1.8 GHz, and a Double Sideband (DSB) noise temperature below 1034 K with the LO power of 2-5 mW and the LO frequency of 107 GHz were achieved. This broadband sub-harmonic mixer operates at room temperature, which makes it applicable to sub-millimeter wave or terahertz wireless communication systems and imaging inspection systems.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

About the journal

Abstract

Keywords