Title :
An Investigation of Third-Order Intermodulation Distortion in Reflection-type Variable Attenuators
Author :
Chongcheawchamnan, M. ; Robertson, I.D.
Author_Institution :
Microwave and Systems Research Group, University of Surrey, Guildford, UK
Abstract :
The analysis of two-tone third-order intermodulation distortion in the reflection-type attenuator employing FETs is presented for the first time. The validity of the closed-form expressions is verified with experimental results at S-band. The technique can be extended to millimeter-wave applications and another circuits which employ the RTA as a basic building block, such as the phaseshifter, bi-phase modulator and vector modulator.
Keywords :
Attenuators; Capacitance; Circuit topology; Coupling circuits; FETs; Inductance; Intermodulation distortion; Nonlinear distortion; RF signals; Voltage;
Conference_Titel :
Microwave Conference, 2001. 31st European
Conference_Location :
London, England
DOI :
10.1109/EUMA.2001.339010
