Title :
Three-port conversion scattering parameters characterization for microwave mixers
Author :
Cao, Haibo ; Weber, Robert
Author_Institution :
Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA
Abstract :
We present a method for characterizing three-port (RF, IF, image) conversion scattering parameters for microwave mixers. A diplexer is used to separate the image signal from the IF signal. The de-embedding and un-terminating methods have been used for calculating the scattering-parameter matrix. The conversion scattering parameters have been obtained at different local-oscillator (LO) power levels for a commercial microwave mixer. We also show how the termination of the image signal will affect the conversion loss of the microwave mixer.
Keywords :
S-matrix theory; S-parameters; microwave mixers; multiplexing equipment; IF signal; deembedding method; diplexer; image signal; microwave mixer; three-port conversion scattering parameter matrix; unterminating method; Frequency measurement; Image converters; Impedance; Insertion loss; Microwave theory and techniques; Mixers; RF signals; Radio frequency; Scattering parameters; Signal analysis;
Conference_Titel :
Circuits and Systems, 2008. MWSCAS 2008. 51st Midwest Symposium on
Conference_Location :
Knoxville, TN
Print_ISBN :
978-1-4244-2166-4
Electronic_ISBN :
1548-3746
DOI :
10.1109/MWSCAS.2008.4616824
