Title :
A 25 watt and 50 watt Ka-band quasi-optical amplifier
Author :
Ortiz, S. ; Hubert, J. ; Mirth, L. ; Schlecht, E. ; Mortazawi, A.
Author_Institution :
North Carolina State Univ., Raleigh, NC, USA
Abstract :
Results for a 25 Watt, 10 dB gain Ka-band Quasi-Optical (QO) amplifier array are presented in this paper. The amplifier consists of a 45-element two-sided active array with a hard-horn feed. Excess heat is removed via a metal carrier integrated into the array. Each unit-cell consists of patch antennas, cascaded MMIC amplifiers, and a through-plate coaxial transition. Performance and construction details are discussed. Preliminary data for a 98-element design are also included.
Keywords :
MMIC amplifiers; active antenna arrays; microstrip antenna arrays; 10 dB; 25 W; 50 W; Ka-band; active array; cascaded MMIC amplifiers; hard-horn feed; patch antenna; quasi-optical amplifier array; through-plate coaxial transition; Antenna arrays; Circuits; Feeds; Heat sinks; High power amplifiers; MMICs; Microstrip antenna arrays; Microstrip antennas; Optical amplifiers; Patch antennas;
Conference_Titel :
Microwave Symposium Digest. 2000 IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-5687-X
DOI :
10.1109/MWSYM.2000.863301
