Polarisation-rotating quasioptical reflection amplifier cell

25 November 1993

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 29 (24) , 2125-2127
https://doi.org/10.1049/el:19931421

Abstract

A quasioptical amplifier cell suitable for power-combining arrays is presented. Orthogonally polarised patch antennas are coupled to the input and output of a resistive-feedback MESFET amplifier. A simple polarimetric reflectometer was developed to test the amplifier cell which solves the problem of imperfect isolation between transmitting and receiving horns and the DC offset problem of quadrature detectors. A peak effective isotropic power gain (EIPG) of 17dB was measured at 4.2GHz with 1% bandwidth which is limited by patch antennas.

Keywords

POLARISATION-ROTATING
17 DB
MIC
POLARIMETRIC REFLECTOMETER
POWER-COMBINING ARRAYS
RESISTIVE-FEEDBACK
MESFET AMPLIFIER
SHF
ORTHOGONALLY POLARISED PATCH ANTENNAS
EIPG
4.2 GHZ
PEAK EFFECTIVE ISOTROPIC POWER GAIN
QUASIOPTICAL REFLECTION AMPLIFIER CELL

This publication has 1 reference indexed in Scilit:

Microstrip Antenna Theory and Design
Published by Institution of Engineering and Technology (IET) ,1981