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

fYear

2006

fDate

38869

Firstpage

740

Lastpage

744

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/FREQ.2006.275481

Filename

4053859