SOI CMOS tunable capacitors for RF antenna aperture tuning
- Resource Type
- Conference
- Authors
- Nicolas, Dominique; Giry, Alexandre; Ben Abdallah, Essia; Bories, Serge; Tant, Gauthier; Parra, Thierry; Delaveaud, Christophe; Vincent, Pierre; Po, Francis Chan Wai
- Source
- 2014 21st IEEE International Conference on Electronics, Circuits and Systems (ICECS) Electronics, Circuits and Systems (ICECS), 2014 21st IEEE International Conference on. :383-386 Dec, 2014
- Subject
- Components, Circuits, Devices and Systems
Capacitors
Tuning
Q-factor
Aperture antennas
Capacitance
CMOS integrated circuits
- Language
This paper provides a detailed analysis of a SOI CMOS tunable capacitor for antenna tuning. Design expressions for a switched capacitor network are given and quality factor of the whole network is expressed as a function of design parameters. Application to antenna aperture tuning is described by combining a 130 nm SOI CMOS tunable capacitor with a printed notch antenna. The proposed tunable multiband antenna can be tuned from 420 MHz to 790 MHz, with an associated radiation efficiency in the 33–73% range.