Title :
A simple oscillator design with the frequency controlled by patch size
Author :
Lee, D.H. ; Lee, J.I. ; Rieh, J.-S. ; Kim, M.
Author_Institution :
Korea Univ., Seoul
Abstract :
A simple design for antenna-integrated planar oscillator with convenient controlling of operating frequency is presented. The oscillator circuit consists of a broadband negative-resistance active part and a passive load including a patch antenna. In the proposed design, patch antenna is resonator as well as radiating element. Hence, the antenna radiation frequency automatically becomes oscillation frequency. To verify the design method, two negative resistance circuits capable of supporting oscillation over full C-band and X-band are fabricated. The oscillation frequencies, output powers and phase noises at 100-KHz offset for different patch antennas are measured.
Keywords :
antenna radiation patterns; broadband antennas; microstrip antennas; oscillators; C-band; X-band; antenna radiation frequency; antenna-integrated planar oscillator; broadband negative-resistance active part; oscillation frequency; oscillator circuit; oscillator design; passive load; patch antenna; patch size; radiating element; resonator; Antenna measurements; Circuits; Design methodology; Electrical resistance measurement; Frequency; Oscillators; Patch antennas; Phase noise; Power generation; Size control; active antenna; oscillator; patch antenna;
Conference_Titel :
Microwave Conference, 2006. APMC 2006. Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-4-902339-08-6
Electronic_ISBN :
978-4-902339-11-6
DOI :
10.1109/APMC.2006.4429464
