Title :
Microwave switches based on tunable ferroelectric filters
Author :
Scheele, Patrick ; Giere, Andre ; Mueller, Steffen ; Jakoby, Rolf
Author_Institution :
Inst. of Microwave Eng., Darmstadt Univ. of Technol., Germany
Abstract :
This paper introduces switches based on tunable ferroelectric filters at microwave frequencies. A SPDT-switch design for the frequency range 2.4-2.5 GHz with switching contrasts of 40 dB and insertion losses below 0.5 dB is presented. Additionally, a first implementation of a 10 GHz bandpass-based SPST-switch was realized on a lossy ferroelectric-thick film of Ba0.6Sr0.4TiO3. The measured switching contrast amounts to 14.4 dB with a 1 dB-bandwidth of 5.4%.
Keywords :
band-pass filters; barium compounds; ferroelectric devices; microwave filters; microwave switches; millimetre wave filters; strontium compounds; thick films; 0.5 dB; 10 GHz; 2.4 to 2.5 GHz; Ba0.6Sr0.4TiO3; bandpass-based single-port-double-throw-switch; ferroelectric-thick film; insertion losses; microwave switches; single-port-single-throw; tunable ferroelectric filters; Band pass filters; Ferroelectric materials; Frequency; Insertion loss; Low pass filters; Microwave filters; Switches; Switching circuits; Tunable circuits and devices; Voltage;
Conference_Titel :
Radio and Wireless Symposium, 2006 IEEE
Print_ISBN :
0-7803-9412-7
DOI :
10.1109/RWS.2006.1615226
