Title :
Slotline coupled varactor tuning of voltage controlled oscillators
Author :
De Swardt, J.B. ; van der Walt, P.W.
Author_Institution :
Dept. of Electron. Eng., Stellenbosch Univ., South Africa
Abstract :
A novel electronic means of tuning a dielectric resonator oscillator has been developed. The varactor control element is electromagnetically coupled to the resonator by means of a slotline. The easily manufactured circuit has a relatively wide tuning range. It is ideally suited for narrowband VCOs (voltage-controlled oscillators). The configuration lends itself to an inexpensive and reproducible manufacturing process.<>
Keywords :
dielectric resonators; microwave oscillators; solid-state microwave circuits; tuning; varactors; variable-frequency oscillators; DRO; dielectric resonator oscillator; electromagnetically coupled; electronic tuning; narrowband VCO; slotline coupling; varactor tuning; voltage controlled oscillators; Circuit optimization; Coupling circuits; Dielectrics; Electromagnetic coupling; Manufacturing; Narrowband; Slotline; Tuning; Varactors; Voltage-controlled oscillators;
Conference_Titel :
Microwave Symposium Digest, 1990., IEEE MTT-S International
Conference_Location :
Dallas, TX
DOI :
10.1109/MWSYM.1990.99692
