A 492 GHZ QUASI-OPTICAL SIS RECEIVER FOR SUBMILLIMETER ASTRONOMY

被引：14

作者：

ENGARGIOLA, G ^{[1
]}

ZMUIDZINAS, J ^{[1
]}

LO, KY ^{[1
]}

机构：

[1] CALTECH,DOWNS LAB PHYS,PASADENA,CA 91125

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1994年 / 65卷 / 06期

关键词：

D O I：

10.1063/1.1144831

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A 492 GHz quasioptical superconductor-insulator-superconductor (SIS) heterodyne receiver for submillimeter astronomy has been constructed with a double-sideband noise temperature of 170+/-25 K, where the system response is an average over a 600 MHz i.f. bandwidth centered at 1.5 GHz. The excellent sensitivity is achieved through use of a planar twin-slot antenna feeding a pair of Nb-Al2O3-Nb junctions linked by an inductance. A main beam of f/15 has been measured. The performance of this receiver is comparable to that of the best 492 GHz waveguide receivers currently in operation.

引用

页码：1833 / 1838

页数：6

共 12 条

[1]

BUTGENBACH TH, 1992, IEEE T APPL SUPERCON, V2, P165

[2] AN IMPROVED SOLUTION FOR INTEGRATED ARRAY OPTICS IN QUASI-OPTICAL MM AND SUBMM RECEIVERS - THE HYBRID ANTENNA [J].