A LOW-NOISE 230 GHZ HETERODYNE RECEIVER EMPLOYING .25-MU-M2 AREA NB/ALOX/NB TUNNEL-JUNCTIONS

被引：41

作者：

KOOI, JW ^{[1
]}

CHAN, M ^{[1
]}

PHILLIPS, TG ^{[1
]}

BUMBLE, B ^{[1
]}

LEDUC, HG ^{[1
]}

机构：

[1] JET PROP LAB,CTR SPACE MICROELECTR TECHNOL,PASADENA,CA 91109

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 1992年 / 40卷 / 05期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

Heterodyne Receiver - Superconducting Tunnel Junctions - Terahertz Technology - Waveguide Mixer;

D O I：

10.1109/22.137383

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：

We report recent results for a full height rectangular waveguide mixer with an integrated IF matching network. Two .25-mu-m2 Nb/AlOx/Nb superconducting insulating superconducting (SIS) tunnel junctions with a current density of almost-equal-to 8500 A/cm2 and omega-RC of almost-equal-to 2.5 at 230 GHz have been tested. One of these quasiparticle tunnel junctions is currently being used at the Caltech Submillimeter Observatory in Hawaii. Detailed measurements of the receiver noise have been made from 200-290 GHz for both junctions at 4.2K. The lowest receiver noise temperatures were recorded at 239 GHz, measuring 48K DSB at 4.2K and 40K DSB at 2.1K. The 230 GHz receiver incorporates a one octave wide integrated low pass filter and matching network which transforms the pumped IF junction impedance to 50-OMEGA over a wide range of impedances.

引用

页码：812 / 815

页数：4

共 12 条

[1]

BUTTGENBACH TH, 1990, INT J INFRARED MILLI, V11

[2]

DADDARIO LR, 1988, IEEE T MICROWAVE THE, V36

[3] THEORETICAL AND EXPERIMENTAL ANALYSIS OF A WAVEGUIDE MOUNTING STRUCTURE [J].

EISENHAR.RL ;

KHAN, PJ .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1971, MT19 (08) :706-&

[4]

Eisenhart Robert L., 1972, 1972 IEEE GMTT International Microwave Symposium, P154, DOI 10.1109/GMTT.1972.1123029

[5]

ELLISON BN, 1987, INT J INFRARED MILLI, V8, P6009

[6]

FELDMAN MJ, UNPUB IEEE T MAGN

[7] LOW-NOISE ROOM-TEMPERATURE AND CRYOGENIC MIXERS FOR 80-120 GHZ [J].

KERR, AR .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1975, 23 (10) :781-787

[8]

LICHTENBERGER AW, 1991, 2ND INT S SPAC TER T, P439

[9] A COOLED 1-2 GHZ BALANCED HEMT AMPLIFIER [J].

PADIN, S ;

ORTIZ, GG .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1991, 39 (07) :1239-1243

[10] A SUPERCONDUCTING TUNNEL JUNCTION RECEIVER FOR 230-GHZ [J].

SUTTON, EC .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1983, 31 (07) :589-592

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