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.
Computer software, coplanar waveguides, MEMS, Microelectromechanical devices, Microwaves, Radio, shift registers, Tuners, varactors, Wireless telecommunication systems
Date of this Version
IEEE MTT-S International Microwave Symposium Digest (2008) 779-782;