DocumentCode
1999254
Title
A Low Noise UHF Surface Transverse Wave Oscillator
Author
Eichinger, L. ; Fleischmann, B. ; Hausner, J. ; Russer, P. ; Weigel, R.
Author_Institution
Lehrstuhl fÿr Hochfrequenztechnik, Technische Universitÿt Mÿnchen, ArcisstrÃ\x9fe 21, D-8000 Mÿnchen 2, FRG
fYear
1988
fDate
12-15 Sept. 1988
Firstpage
274
Lastpage
279
Abstract
A hybrid oscillator at 1.98 GHz has been developed using acoustic surface transverse wave (STW) delay lines operating at the third harmonic as the frequency controlling element. The STW delay lines were fabricated on 37.5° rotated Y-cut quartz substrates with a photolithographic technique. The Q value and the untuned insertion loss of the STW filters were 3400 and 21 dB, respectively. The phase noise and temperature stability of the oscillator were characterized. At a power output of 6.5 dBm a single sideband phase noise to carrier ratio of -100 dBc/Hz at 1 kHz and -70 dBc/Hz at 100 Hz was attained.
Keywords
Acoustic noise; Delay lines; Frequency; Insertion loss; Oscillators; Phase noise; Power harmonic filters; Surface acoustic waves; Surface waves; Temperature;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 1988. 18th European
Conference_Location
Stockholm, Sweden
Type
conf
DOI
10.1109/EUMA.1988.333828
Filename
4132516
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