Title :
A self-mixing active antenna for communication and vehicle identification applications
Author :
Montiel, C.M. ; Fan, L. ; Chang, K.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
A cavity backed, Gunn diode driven, self-mixing active inverted stripline circular patch antenna has been developed. The active antenna provides good radiation patterns with cross-polarization levels 18 dB below copolarization at boresight. The self-mixing performance shows that the circuit has a 2 dB conversion gain for IFs up to 450 MHz and a double sideband noise figure of 15 dB at 200 MHz. The antenna is suitable for use as a transceiver for short communications links or as a microwave identification transceiver.
Keywords :
Gunn diodes; active antennas; antenna radiation patterns; identification; land mobile radio; microstrip antennas; microwave links; road traffic; transceivers; 15 dB; 2 dB; 200 to 450 MHz; Gunn diode driven antenna; boresight; cavity backed antenna; circular patch antenna; communication applications; conversion gain; cross-polarization levels; double sideband noise figure; inverted stripline antenna; microwave identification transceiver; radiation patterns; self-mixing active antenna; short communications links; transceiver; vehicle identification; Antenna radiation patterns; Circuits; Diodes; Gunn devices; Noise figure; Patch antennas; Performance gain; Stripline; Transceivers; Vehicles;
Conference_Titel :
Microwave Symposium Digest, 1996., IEEE MTT-S International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-3246-6
DOI :
10.1109/MWSYM.1996.508524
