Title :
Uniplanar active integrated antenna element with tuning stub using an FET and CPW´s
Author :
Kawasaki, Shigeo ; Itoh, Tatsuo
Author_Institution :
Japan Defense Agency, Tokyo, Japan
Abstract :
The authors describe a design method and experimental results of a uniplanar active integrated antenna with tuning stub. The circuit consists of a slot radiator, an FET oscillator and CPWs. The active integrated antenna oscillated at 7.77 GHz and its oscillation frequency was tuned to 7.94 GHz by cutting the tuning stub. The maximum tuning range due to change of the drain voltage was 70 MHz. No significant change on antenna pattern measurement was observed
Keywords :
active antennas; antenna radiation patterns; coplanar waveguides; hybrid integrated circuits; microwave integrated circuits; microwave oscillators; slot antennas; tuning; 7.77 to 7.94 GHz; CPW; FET oscillator; SHF; antenna pattern; design method; hybrid MIC technique; integrated antenna element; slot radiator; tuning stub; uniplanar active integrated antenna; Antenna arrays; Antenna measurements; Circuit optimization; Coplanar waveguides; Design methodology; FETs; Frequency; Inductance; Integrated circuit technology; Oscillators; Tuning; Voltage;
Conference_Titel :
Microwave Conference Proceedings, 1993. APMC '93., 1993 Asia-Pacific
Conference_Location :
Hsinchu
Print_ISBN :
0-7803-1352-6
DOI :
10.1109/APMC.1993.468477
