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

fYear

2012

Firstpage

762

Lastpage

765

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

field effect transistors; microstrip lines; microstrip resonators; microwave oscillators; microwave resonators; FET; MSL-to-SSL transition; frequency 100 kHz; frequency 125.7 MHz; frequency 5.148 GHz; frequency tunable; high Q suspended-stripline resonator; microstrip line; negative resistance; tunable oscillator design; Microstrip resonators; Phase noise; Q-factor; Resonant frequency; Tuners; Oscillator; Phase Noise; Resonator; Suspended stripline; Tunable;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Integrated Circuits Conference (EuMIC), 2012 7th European

Conference_Location

Amsterdam

Print_ISBN

978-1-4673-2302-4

Electronic_ISBN

978-2-87487-026-2

Type

conf

Filename

6483912