Title :
Comparison of AM Noise in Commercial Amplifiers and Oscillators at X-Band
Author :
Hati, A. ; Howe, D.A. ; Nelson, C.W.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO
Abstract :
In this paper the authors discuss the importance of amplitude-modulated (AM) noise. AM noise is often neglected and considered as a minor problem. However, AM noise can become very important in high performance systems that require ultra-low phase-modulated (PM) noise and where the designer is struggling with AM-PM conversion. Few discussions are available on the AM noise of different microwave components. In this paper we report the AM noise of different commercial amplifiers and oscillators at 10 GHz. To adequately characterize the AM noise of high performance amplifiers, we design and investigate an air-dielectric cavity resonator oscillator with outstanding AM noise performance. We also present the AM noise of different AM detectors at 10 GHz
Keywords :
amplitude modulation; cavity resonators; microwave amplifiers; microwave oscillators; noise measurement; phase modulation; 10 GHz; AM detectors; X-band; air-dielectric cavity resonator oscillator; amplitude-modulated noise; microwave amplifiers; microwave oscillators; phase-modulated noise; Cavity resonators; Detectors; Distributed amplifiers; Low-noise amplifiers; Microwave amplifiers; Microwave oscillators; Noise level; Noise measurement; Phase noise; Testing;
Conference_Titel :
International Frequency Control Symposium and Exposition, 2006 IEEE
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0074-0
Electronic_ISBN :
1-4244-0074-0
DOI :
10.1109/FREQ.2006.275481
