An adaptive impedance tuning CMOS circuit for ISM 2.4-GHz band

The difficulties encountered in matching an antenna to its optimal impedance are reduced with an adaptive 0.35-/spl mu/m CMOS circuit based on several switched shunt capacitors arranged in capacitor banks and on a few external series inductors. As high-quality inductors are difficult to obtain in CM...

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Veröffentlicht in:	IEEE transactions on circuits and systems. 1, Fundamental theory and applications Fundamental theory and applications, 2005-06, Vol.52 (6), p.1115-1124
Hauptverfasser:	Sjoblom, P., Sjoland, H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adaptive arrays Antenna tuning unit (ATU) bank capacitor capacitor bank Ceramics Circuit optimization Circuit simulation CMOS Electrical Engineering, Electronic Engineering, Information Engineering Elektroteknik och elektronik Engineering and Technology Frequency Impedance impedance matching impedance tuning impedance tuning unit (ITU) Inductors ISM reconfigurable matching Shunt (electrical) switched capacitor Switched capacitor circuits Switching circuits Teknik unit (ITU)
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