Title :
Planar MESFET transmission wave amplifier
Author :
Mader, T. ; Schoenberg, J. ; Harmon, L. ; Popovic, Z.B.
Author_Institution :
Dept. of Electr. Comput. Eng., Colorado Univ., Boulder, CO, USA
Abstract :
The authors present a quasioptical power combining transmission amplifier for increasing the power level available from solid-state circuits. Receiving and transmitting arrays of patch antennas, input/output isolation, MESFETs, bias and matching circuitry are contained on a single substrate, making monolithic millimetre-wave integration possible. The flexibility of selecting input polarisation with respect to the output while maintaining amplifier stability is demonstrated. A 24-MESFET patch antenna amplifier array is presented.
Keywords :
Schottky gate field effect transistors; active antennas; microstrip antennas; microwave amplifiers; microwave antenna arrays; microwave integrated circuits; MESFET; amplifier stability; bias; input polarisation; input/output isolation; matching circuitry; monolithic millimetre-wave integration; patch antennas; quasioptical power combining; receiving arrays; solid-state circuits; transmission wave amplifier; transmitting arrays;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19931130
