Title :
Distortion-free varactor diode topologies for RF adaptivity
Author :
Buisman, Koen ; de Vreede, Leo C. N. ; Larson, Lawrence E. ; Spirito, M. ; Akhnoukh, A. ; Scholtes, Thomas L. M. ; Nanver, Lis K.
Author_Institution :
Delft Univ. of Technol., Netherlands
Abstract :
Varactor diode-based circuit topologies, which can act as high-Q distortion-free tunable capacitive elements, are presented. These diodes are implemented in a novel ultra low-loss silicon-on-glass technology, with resulting measured Q´s of over 200 at 2 GHz. The measured IM3 improvement compared to traditional single varactor tuning techniques is greater than 30 dB.
Keywords :
Q-factor; network topology; radiofrequency integrated circuits; silicon; varactors; 2 GHz; IM3 improvement; RF adaptivity; circuit topologies; distortion free tunable capacitive elements; silicon on glass technology; single varactor tuning techniques; varactor diode topologies; Capacitance; Capacitors; Circuit topology; Matched filters; Nonlinear distortion; Radio frequency; Semiconductor diodes; Tunable circuits and devices; Varactors; Voltage;
Conference_Titel :
Microwave Symposium Digest, 2005 IEEE MTT-S International
Print_ISBN :
0-7803-8845-3
DOI :
10.1109/MWSYM.2005.1516547
