Title :
Design of a tunable oscillator using a suspended-stripline resonator
Author :
Il-Heung Kang ; Young-Gon Kim ; Dong-Sik Woo ; Sung-Kyun Kim ; Kang Wook Kim
Author_Institution :
Sch. of Electron. Eng., Kyungpook Nat. Univ., Daegu, South Korea
fDate :
Oct. 29 2012-Nov. 1 2012
Abstract :
In this paper, a new design method of a tunable oscillator using a suspended-stripline resonator is presented. The negative resistance of an FET mounted on microstrip line (MSL) is combined with a high Q suspended-stripline (SSL) resonator to produce a tunable oscillator with good phase noise. The new MSL-to-SSL transition facilitates easy connection between the MSL-based circuits and the SSL module. The proposed oscillator is also frequency-tunable using a tuner located on the top of the SSL housing. The measured phase noise of the implemented oscillator at 5.148 GHz is -104.34 dBc@100 kHz and -133.21 dBc@1 MHz with 125.7 MHz of frequency tuning.
Keywords :
microstrip lines; microwave field effect transistors; microwave oscillators; microwave resonators; phase noise; strip line resonators; FET; MSL-based circuits; MSL-to-SSL transition; SSL housing; SSL module; SSL resonator; frequency 5.148 GHz; high Q-suspended-stripline resonator; microstrip line; phase noise; tunable oscillator design; Microstrip resonators; Phase noise; Q factor; Resonant frequency; Tuners; Oscillator; Phase Noise; Resonator; Suspended stripline; Tunable;
Conference_Titel :
Microwave Conference (EuMC), 2012 42nd European
Conference_Location :
Amsterdam
Print_ISBN :
978-1-4673-2215-7
Electronic_ISBN :
978-2-87487-026-2
