DocumentCode :
1382787
Title :
Generation of confined-spectrum pulses using an absorption p-i-n diode modulator
Author :
Saponas, T.A.
Author_Institution :
Univ. Colorado, Colorado Springs, CO, USA
Volume :
19
Issue :
12
fYear :
1971
Firstpage :
938
Lastpage :
943
Abstract :
Using a digital computer the spectrum of a Gaussian envelope pulse can be evaluated to accuracies of better than 0.01 dB over a dynamic range of 100 dB. This technique was used to investigate the problems in existing microwave transmitters. From such a study a low-level absorption-type modulator followed by linear power amplification is a logical method. A commercially available p-i-n diode modulator was then measured on a microwave network analyzer, and, from the resulting amplitude and phase data, the spectrum was computed. The computed prediction of the spectrum was then compared to the measured spectrum and found to agree within 1 dB to -50 dB.
Keywords :
computer applications; electronics applications of computers; microwave devices; modulators; pulse circuits; spectral analysers; absorption p-i-n diode modulator; computed prediction; confined spectrum pulses generation; digital computer; low level absorption type modulators; microwave network analyzer; spectral analysers; spectrum evaluation; Computers; Microwave amplifiers; Microwave measurements; P-i-n diodes; Phase modulation;
fLanguage :
English
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9480
Type :
jour
DOI :
10.1109/TMTT.1971.6373344
Filename :
6373344
Link To Document :
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