A novel quasi-optical subharmonically pumped GaAs diode mixer at 375 GHz

被引：1
|
作者：
Hu, Jie [1 ]
Lou, Zheng [1 ]
Shi, Sheng-Cai [1 ]
机构：
[1] Chinese Acad Sci, Purple Mt Observ, Beijing, Peoples R China
来源：
INFRARED, MILLIMETER-WAVE, AND TERAHERTZ TECHNOLOGIES II | 2012年 / 8562卷
关键词：
Off-axis twin-slot antennas; quasioptics; subharmonically pumped mixer; Schottky diode; SILICON;
D O I：
10.1117/12.999606
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 paper presents the design and characterization of a novel quasioptical subharmonically pumped GaAs Schottky diode mixer at 375 GHz. It features the use of two off-axis twin-slot antennas fed by CPW to receive the RF and LO signals respectively. The mixer circuits together with the antennas are integrated on a silicon extended elliptical lens. Conventional harmonic balance simulations in combination with 3D fullwave simulations in HFSS are carried out to analyze the performance of the mixer. Optimal conversion loss is obtained after impedances of the LO and RF ports are matched. Final simulation results show that the mixer achieves a DSB conversion loss of 10 dB and a noise temperature of 2900 K.
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页数：6
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