Three-level 1 GS/s digital correlator for wideband polarimetric radiometry

Author

Piepmeier, J.R. ; Gasiewski, A.J.

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

3

fYear

1996

fDate

17-21 June 1996

Firstpage

1339

Abstract

A 500-MHz bandwidth, three-level (1.6 bit) digital correlator operating at 1 GS/s was designed and fabricated. The digital circuit is comprised of discrete high-speed silicon emitter-coupled logic components. The use of digital microwave design techniques was necessary to accomplish proper clock distribution, impedance matching, and asynchronous signal propagation. The correlator is to be part of a fully polarimetric radiometer for airborne application. Experimental results from a 400 MS/s prototype polarimetric radiometer are presented.

Keywords

correlators; emitter-coupled logic; polarimetry; radiometry; 1.6 bit; 500 MHz; Si; airborne application; asynchronous signal propagation; clock distribution; digital circuit; digital microwave design; high-speed silicon emitter-coupled logic; impedance matching; three-level digital correlator; wideband polarimetric radiometry; Bandwidth; Clocks; Correlators; Digital circuits; Logic circuits; Microwave radiometry; Microwave theory and techniques; Signal design; Silicon; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1996., IEEE MTT-S International

Conference_Location

San Francisco, CA, USA

ISSN

0149-645X

Print_ISBN

0-7803-3246-6

Type

conf

DOI

10.1109/MWSYM.1996.512183

Filename

512183