Title :
A design of the novel varactor tuned directional coupler
Author :
Chul-Soo Kim ; Chul-Sang Yoon ; Jun-Seok Park ; Dal Ahn ; Jae-Bong Lim ; Seung-In Yang
Author_Institution :
Dept. of Electron., Soonchunhyang Univ., South Korea
Abstract :
The directional coupler with a parallel LC resonator is proposed to control the operating frequency range. The proposed directional coupler is designed based on even-odd mode analysis technique. It has physically quarter wavelength coupled section at center frequency. A varactor tuned directional coupler is designed and fabricated with a parallel LC resonator. It shows the flexible operating frequency range with 40% tunable. The measured results show good agreement with the simulated characteristics.
Keywords :
directional couplers; tuning; varactors; design; directional coupler; even-odd mode analysis; parallel LC resonator; varactor tuning; Consumer electronics; Directional couplers; Frequency; Radiofrequency amplifiers; Resonance; Transmission line matrix methods; Tunable circuits and devices; Varactors; Voltage; Wireless communication;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.780304
