Title :
A broadband tunable distributed feedback resonator
Author :
Hausner, J. ; Russer, P.
Author_Institution :
Inst. fuer Hochfrequenztech. Tech. Univ., Munchen, Germany
Abstract :
A tunable Bragg-type distributed feedback microwave resonator is presented. The resonator is formed by a transmission line periodically loaded with varactor diodes. A tunable periodic superstructure is superimposed on the transmission line by periodically DC biasing the varactor diodes. Two resonators of this type were fabricated, one on an alumina substrate in coplanar hybrid integrated technology and the second in microstrip on RT-Duroid substrate. With this resonator configuration, tuning bandwidths from 400 MHz to 4 GHz and 200 MHz to 2 GHz, respectively, were achieved.<>
Keywords :
feedback; hybrid integrated circuits; microwave devices; microwave integrated circuits; resonators; strip line components; tuning; varactors; 200 MHz to 4 GHz; DC biasing; MIC; RT-Duroid substrate; alumina substrate; coplanar hybrid integrated technology; distributed feedback resonator; microstrip; microwave resonator; periodically loaded transmission line; tunable Bragg-type; tunable periodic superstructure; varactor diodes; Bandwidth; Distributed feedback devices; Frequency; Laser tuning; Periodic structures; Semiconductor diodes; Transmission line theory; Tunable circuits and devices; Varactors; Voltage;
Conference_Titel :
Microwave Symposium Digest, 1991., IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-87942-591-1
DOI :
10.1109/MWSYM.1991.147110
