Title :
Multi-tone intermodulation distortion performance of 3rd order microwave circuits
Author :
Carvalho, N.B. ; Pedro, J.C.
Author_Institution :
Inst. de Telecommun., Aveiro Univ., Portugal
Abstract :
Analytic expressions are presented to predict the response of a 3rd order memoryless microwave circuit under a relative narrow-band spectrum composed of a general number of equally spaced tones with constant amplitude and correlated or uncorrelated phases. This enabled the study of the relation between two-tone and multi-tone characterization, and showed that normal Noise Power Ratio (NPR) measurement procedures are optimistic in up to 7 dB when evaluating real co-channel distortion.
Keywords :
adjacent channel interference; circuit noise; cochannel interference; intermodulation distortion; microwave circuits; co-channel distortion; constant amplitude; correlated phases; equally spaced tones; intermodulation distortion performance; memoryless microwave circuit; multi-tone IMD performance; multitone characterization; narrow-band spectrum; noise power ratio measurement procedures; third-order microwave circuits; uncorrelated phases; Distortion measurement; Frequency; Intermodulation distortion; Microwave circuits; Narrowband; Nonlinear distortion; Phase noise; Signal to noise ratio; System testing; Telecommunications;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.779871
