Title :
Integrated microstrip shorted antenna using hybrid active circulator
Author :
Gupta, Sanjeev ; Nath, Pankaj Kanti ; Sarkar, B.K.
Author_Institution :
Indian Inst. of Technol., Mumbai, India
Abstract :
The design of an integrated microstrip shorted antenna using hybrid active circulator is presented to produce a fully duplexed transceiver with transmit and receive operation at the same frequency and with the same polarization. This design is compatible with the MMIC technology since ferrite circulator needed for duplexer is avoided by a hybrid active circulator based on phase cancellation technique. This integrated active circulator antenna has potential uses in both short-range communication systems and radar systems. Arrays of these elements could overcome the power handling problems that limit the performance of current active circulators
Keywords :
active antennas; circulators; microstrip antennas; MMIC technology; duplexed transceiver; hybrid active circulator; integrated microstrip shorted antenna; phase cancellation; power handling; radar system; short-range communication system; Capacitance; Circuits; DH-HEMTs; Dielectric losses; Dielectric substrates; Frequency; Inductance; Microstrip antennas; Patch antennas; Permittivity;
Conference_Titel :
Microwave Conference, 2000 Asia-Pacific
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6435-X
DOI :
10.1109/APMC.2000.925933
