Wideband Fourth-Harmonic Mixer Operated at 325-500 GHz

被引：20

作者：

Deng, Jianqin ^{[1
,2
,3
]}

Lu, Qijun ^{[1
]}

Jia, Dinghong ^{[2
,3
]}

Yang, Yingtang ^{[1
]}

Zhu, Zhangming ^{[1
]}

机构：

[1] Xidian Univ, Sch Microelect, Xian 710071, Shaanxi, Peoples R China

[2] 41st Res Inst CETC, Qingdao 266555, Peoples R China

[3] Natl Key Lab Elect Measurement Technol, Qingdao 266555, Peoples R China

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2018年 / 28卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Fourth-harmonic mixer; low conversion loss (CL); Schottky diodes; suspended microstrip; wideband;

D O I：

10.1109/LMWC.2018.2804158

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter presents an approach to design the fourth-harmonic mixer based on a pair of antiparallel Schottky diodes. To implement the proposed fourth-harmonic mixer, a two-level local oscillator (LO) low-pass filter is used to suppress the second, third, and fourth harmonics of the LO frequency, further to improve the isolation between RF and LO ports. Also, two shorted grounds are adopted to ensure the wideband performance of the proposed mixer. Furthermore, a wideband fourth-harmonic operating at 325-500 GHz is fabricated and measured. The results show that it has very low conversion loss from 15 to 22 dB in the whole operational band.

引用

页码：242 / 244

页数：3

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