Title :
A Hybrid Coupled-Resonator Bandpass Filter Topology Implemented on Lossy Semiconductor Substrates
Author :
Frye, Robert C. ; Liu, Kai ; Badakere, Guruprasad ; Lin, Yaojian
Author_Institution :
LLC, Berkeley Heights
Abstract :
The Q of filter resonators formed on lossy substrates depends on their mode of excitation. Modifying the circuit design such that the voltage signals on resonator coils is predominantly differential can result in substantially higher Q. Band-pass filter resonator topologies that exploit this difference are discussed, and experimental results are presented for 802.11 b band-pass filters implemented in a thin-film technology on silicon substrates.
Keywords :
Q-factor; band-pass filters; passive filters; resonator filters; thin film circuits; 802.11b band-pass filters; Q-factor; hybrid coupled-resonator bandpass filter topology; integrated passive device technology; lossy semiconductor substrates; resonator coils; silicon substrates; thin-film technology; voltage signals; Band pass filters; Circuit synthesis; Circuit topology; Coils; Coupling circuits; Resonator filters; Semiconductor thin films; Substrates; Thin film circuits; Voltage; Bandpass filters; circuit topology; passive circuits; thin-film inductors;
Conference_Titel :
Microwave Symposium, 2007. IEEE/MTT-S International
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0688-9
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2007.380069
