600-696GHz heterodyne receiver with fixed-tuned SIS mixer and Martin-Puplett LO/RF diplexer

Author

Hwang, Yuh-Jing ; Wang, Ming-Jye ; Jiang, Homin ; Chen, Ming-Tang ; Shi, Sheng-Cai ; Yao, Qijun

Author_Institution

Acad. Sinica Inst. of Astron. & Astrophys., Taipei, Taiwan

Volume

1

fYear

2005

fDate

4-7 Dec. 2005

Abstract

A heterodyne receiver equipped with fixed-tuned superconductor-insulator-superconductor (SIS) mixer is developed and characterized. A Martin-Puplett interferometer is used in the receiver as diplexer to combine the RF/LO signal. The receiver noise measurement indicates the lowest receiver noise temperature including the optical loss of the MPI is as low as 250K. The receiver noise temperature is below 400K in the IF center frequency and below 500K over whole IF passband for LO frequency tuned between 624-696GHz.

Keywords

multiplexing equipment; submillimetre wave mixers; submillimetre wave receivers; superconductor-insulator-superconductor mixers; 600 to 696 GHz; Martin-Puplett LO-RF diplexer; Martin-Puplett interferometer; fixed-tuned superconductor-insulator-superconductor mixer; heterodyne receiver; receiver noise temperature; submillimeter wave receivers; Noise measurement; Optical interferometry; Optical mixing; Optical noise; Optical receivers; RF signals; Radio frequency; Superconducting device noise; Superconducting devices; Temperature; noise measurement; submillimeter wave receivers; superconductor-insulator-superconductor mixers;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings

Print_ISBN

0-7803-9433-X

Type

conf

DOI

10.1109/APMC.2005.1606238

Filename

1606238