Title :
A K-band full-duplex transmit-receive lens array
Author :
Forman, M. ; Vian, J. ; Popovic, Z.
Author_Institution :
Colorado Univ., Boulder, CO, USA
Abstract :
A K-band full-duplex transmit-receive lens antenna array using uniplanar circuitry is reported. The array transmits at 19 GHz and receives at 21 GHz by means of two independent unit cells. Orthogonal antenna polarization and bandpass circuitry provide a simulated isolation of 42 dB between transmit and receive channels. The measured gains of the active array are 3.0 and 8.3 dB above passive with an on-off ratio of 10 and 15 dB for transmit and receive modes respectively.
Keywords :
active antenna arrays; lens antennas; receiving antennas; transmitting antennas; waveguide antenna arrays; 19 GHz; 21 GHz; 3.0 dB; 8.3 dB; K-band; active array; antenna array; bandpass circuitry; full-duplex transmit-receive lens array; gains; independent unit cells; on-off ratio; orthogonal antenna polarization; receive channels; simulated isolation; transmit channels; uniplanar circuitry; Antenna arrays; Antenna feeds; Circuits; Coplanar waveguides; K-band; Lenses; Millimeter wave technology; Patch antennas; Polarization; Transmitting antennas;
Conference_Titel :
Microwave Symposium Digest, 2001 IEEE MTT-S International
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6538-0
DOI :
10.1109/MWSYM.2001.967263
