Title :
A bi-directional quasi-optical lens amplifier
Author :
Hollung, S. ; Vian, J. ; Popovic, Z.B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA
Abstract :
A 10-element bi-directional quasi-optical lens amplifier array is presented. The amplifier is designed for X-band, and operates in transmission mode. SPDT switches are used to switch between transmit and receive amplifiers. An ON/OFF ratio of 25 dB is measured for both transmitting and receiving modes with associated amplifier gains of 5 and 10 dB.
Keywords :
HEMT circuits; MESFET circuits; active antenna arrays; microwave power amplifiers; power amplifiers; slot antenna arrays; transceivers; 10 dB; 5 dB; SPDT switches; T/R module; X-band; bi-directional quasi-optical lens amplifier; lens amplifier array; receive amplifiers; transmission mode; transmit amplifiers; Antenna measurements; Bidirectional control; Feeds; Lenses; MESFETs; Microstrip antennas; Optical amplifiers; Optical switches; Polarization; Slot antennas;
Conference_Titel :
Microwave Symposium Digest, 1997., IEEE MTT-S International
Conference_Location :
Denver, CO, USA
Print_ISBN :
0-7803-3814-6
DOI :
10.1109/MWSYM.1997.602881
