QUASI-OPTICAL SLOT ANTENNA SIS MIXERS

被引：119

作者：

ZMUIDZINAS, J ^{[1
]}

LEDUC, HG ^{[1
]}

机构：

[1] JET PROP LAB,PASADENA,CA 91109

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 1992年 / 40卷 / 09期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

D O I：

10.1109/22.156607

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 describe a new quasi-optical SIS mixer designed for efficient radiation coupling. The mixer uses a twin-slot antenna which has the advantages of a good beam pattern and a low impedance. The radiation and impedance characteristics of the antenna were obtained from a moment-method calculation. Tapered superconducting microstrip transmission lines are used to carry the radiation from the slot antennas to the tunnel junction. The effective impedance seen by the tunnel junction is quite low, about 4-OMEGA, which allows micron-size junctions to be used at 500 GHz. The mixers have been fabricated using Nb/Al-oxide/Nb tunnel junctions and a receiver noise temperature of 420 K (DSB) was measured at 490 GHz, which is the best yet obtained for a quasi-optical mixer at this frequency. The comparatively large junction area increases the mixer saturation power and allows strong suppression of noise from the Josephson effect by the application of a magnetic field of modest strength.

引用

页码：1797 / 1804

页数：8

共 33 条

[1]

[Anonymous], NORLAND OPTICAL ADHE

[2]

Born M., 1987, PRINCIPLES OPTICS

[3] PLANAR ANTENNAS ON A DIELECTRIC SURFACE [J].

BREWITTTAYLOR, CR ;

GUNTON, DJ ;

REES, HD .

ELECTRONICS LETTERS, 1981, 17 (20) :729-731

[4]

BUTTGENBACH T, 1991, COMMUNICATION

[5] A BROAD-BAND LOW-NOISE SIS RECEIVER FOR SUBMILLIMETER ASTRONOMY [J].

BUTTGENBACH, TH ;

MILLER, RE ;

WENGLER, MJ ;

WATSON, DM ;

PHILLIPS, TG .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1988, 36 (12) :1720-1726

[6] SATURATION OF THE SIS MIXER BY OUT-OF-BAND SIGNALS [J].

DADDARIO, LR .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1988, 36 (06) :1103-1105

[7] FREQUENCY-DEPENDENCE OF QUASI-PARTICLE MIXERS [J].

DANCHI, WC ;

SUTTON, EC .

JOURNAL OF APPLIED PHYSICS, 1986, 60 (11) :3967-3977

[8] A 345GHZ SIS RECEIVER FOR RADIO ASTRONOMY [J].

ELLISON, BN ;

SCHAFFER, PL ;

SCHAAL, W ;

VAIL, D ;

MILLER, RE .

INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES, 1989, 10 (08) :937-947

[9] THEORETICAL CONSIDERATIONS FOR THZ SIS MIXERS [J].

FELDMAN, MJ .

INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES, 1987, 8 (10) :1287-1292

[10]

HAMMERSTAD E, 1980, IEEE MTT S INT MICR, P407

← 1 2 3 4 →