Title :
A frequency-tunable impedance matching network based on coupled inductors for RF power amplifiers
Author :
Dal Fabbro, Paulo Augusto ; Kayal, Maher ; Kobayashi, Kazuhiko ; Watanabe, Yuu
Author_Institution :
Electron. Lab., EPFL, Lausanne
Abstract :
In this paper we present an RF PA employing an output impedance matching network of the pi-type, where an inductor is variable. In order to implement this tunable inductor, the coupled-inductor technique [1] is used. Although other techniques for inductor tuning exist, like those using active [2] and MEMS inductors, and p-i-n diodes [3], the coupled-inductor technique is the only providing quality factor (Q) enhancement and tunable capability.
Keywords :
impedance matching; inductors; p-i-n diodes; power amplifiers; MEMS inductors; RF power amplifiers; coupled inductors; coupled-inductor technique; frequency tunable; impedance matching network; p-i-n diodes; quality factor enhancement; Coupling circuits; Impedance matching; Inductors; Laboratories; Power amplifiers; Power generation; Radio frequency; Radio spectrum management; Radiofrequency amplifiers; Tunable circuits and devices;
Conference_Titel :
Microwave Conference, 2008. APMC 2008. Asia-Pacific
Conference_Location :
Macau
Print_ISBN :
978-1-4244-2641-6
Electronic_ISBN :
978-1-4244-2642-3
DOI :
10.1109/APMC.2008.4958476
