Title :
Electronically steerable antenna using superluminal waveguide and tunable negative capacitors
Author :
Jiang Long ; Jacob, Mathews ; Sievenpiper, Daniel F.
Abstract :
In this paper, a tunable negative capacitor with effective capacitance ranging from -7pF to -12pF was designed and tested. This negative capacitor was simulated as periodically attached to a microstrip line and superluminal propagation was observed. Based on phase matching condition, such a microstrip line acts as a leaky wave antenna without the problem of beam squint. Further, we use the tunable negative capacitors to control the radiation angle of this leaky wave antenna.
Keywords :
antenna radiation patterns; capacitors; leaky wave antennas; microstrip lines; beam squint; electronically-steerable antenna; leaky wave antenna; microstrip line; phase matching condition; radiation angle; superluminal propagation; superluminal waveguide; tunable negative capacitors; Capacitance; Delay; Integrated circuit modeling; Leaky wave antennas; Microstrip; Varactors;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349275
