DocumentCode
2654018
Title
The Injection-Locked-Oscillator as a Microwave Amplifier of MSK Modulated Signals - Part II
Author
Kumar, S. ; Chudobiak, W.J. ; Wight, J.S.
fYear
1979
fDate
April 30 1979-May 2 1979
Firstpage
525
Lastpage
530
Abstract
Because of its phase continuous nature a Minimum-Shift-Keying (MSK) type of digitally modulated microwave signal may be amplified with an Injection-Locked-Oscillator Phase-Locked-Amplifier (ILO-PLA) Experimental bit-error-rate results for an ILO-PLA are presented in this paper for MSK modulated signals. The results show that for MSK signals an ILO-PLA does not display the large performance degradation previously reported for QPSK signals. Further a two sided locking bandwidth equal to 1.8 times the input signal bit-rate results in about .3 dB degradation in the bit-error-rate performance due to the ILO-PLA. A positive or negative frequency offset of about ten per cent of the locking bandwidth causes negligible further degradation of the performance.
Keywords
Bandwidth; Continuous phase modulation; Degradation; Digital modulation; High power amplifiers; Microwave amplifiers; Oscillators; Phase modulation; Programmable logic arrays; Quadrature phase shift keying;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Symposium Digest, 1979 IEEE MTT-S International
Conference_Location
Orlando, FL, USA
Type
conf
DOI
10.1109/MWSYM.1979.1124125
Filename
1124125
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