Design, simulation and measurement of a reconfigurable CMOS RF tuner that can be utilized in the RF front-end of a software defined radio are presented. 0.13m high Q CMOS varactors controlled by a 22bit shift register are placed periodically on a low loss Coplanar Waveguide (CPW) transmission line to form a 4-11GHz reconfigurable tuner. The monolithic tuner does not use any MEMS devices to achieve the reconfigurability.


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Computer software, coplanar waveguides, MEMS, Microelectromechanical devices, Microwaves, Radio, shift registers, Tuners, varactors, Wireless telecommunication systems

Date of this Version

January 2008



Published in:

IEEE MTT-S International Microwave Symposium Digest (2008) 779-782;



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