Title :
A varactor-tuned patch oscillator for active arrays
Author :
Liao, P. ; York, R.A.
Author_Institution :
Dept. of Electr. Eng., California Univ., Santa Barbara, CA, USA
Abstract :
The design and construction of a relatively wideband quasi-optical voltage-controlled oscillator (VCO) is described. This VCO uses a varactor-tuned microstrip patch antenna and may be used as an element in quasi-optical power combining oscillator arrays. Measurements of this VCO indicate that over 1.3 GHz of tuning was achieved, with less than /spl plusmn/1.5 dB of amplitude variation over that range.<>
Keywords :
active antennas; feedback; microstrip antennas; microwave antenna arrays; microwave integrated circuits; microwave oscillators; tuning; varactors; variable-frequency oscillators; X-band operation; active arrays; microstrip patch antenna; power combining oscillator arrays; tuning; varactor-tuned patch oscillator; wideband quasi-optical VCO; Dielectric resonator antennas; Feedback circuits; Frequency; Impedance; Microstrip antenna arrays; Patch antennas; RLC circuits; Resonance; Tuning; Voltage-controlled oscillators;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
