Implementation of a YBa/sub 2/Cu/sub 3/O/sub 7-x/ wideband real-time spectrum-analysis receiver

Author

Lyons, W.G. ; Arsenault, D.R. ; Seaver, M.M. ; Boisvert, R.R. ; Sollner, T.C.L.G. ; Withers, R.S.

Author_Institution

Lincoln Lab., MIT, Lexington, MA, USA

Volume

3

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

2891

Lastpage

2894

Abstract

The implementation of a wideband real-time spectrum-analysis receiver based on YBa/sub 2/Cu/sub 3/O/sub 7-x/ chirp filters and a chirp-transform algorithm is presented. The integration of the high-T/sub c/ spectrum-analysis subsystem with high-speed semiconductor output circuits is demonstrated. A compressed pulse is obtained using a voltage-controlled oscillator to generate a flat-weighted chirp signal, and a Hamming-weighted YBa/sub 2/Cu/sub 3/O/sub 7-x/ chirp filter is used to compress the chirp signal into a pulse. The error sidelobe level of the compressed pulse response is -18 dB. Semiconductor circuits are included in the system for envelope detection of compressed pulses and video to emitter coupled logic (ECL) logic-level conversion.<>

Keywords

barium compounds; high-temperature superconductors; spectral analysers; superconducting integrated circuits; superconducting logic circuits; yttrium compounds; YBa/sub 2/Cu/sub 3/O/sub 7-x/; chirp filters; chirp-transform algorithm; compressed pulse; high temperature superconductor; high-speed semiconductor output circuits; video to emitter coupled logic; wideband real-time spectrum-analysis receiver; Chirp; Envelope detectors; Filters; Pulse circuits; Pulse compression methods; Pulse generation; Signal generators; Video compression; Voltage-controlled oscillators; Wideband;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.234004

Filename

234004