论文信息 - Polarisation-rotating quasioptical reflection amplifier cell

Polarisation-rotating quasioptical reflection amplifier cell

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.

Robert A. York | H. S. Tsai

[1] J. R. James,et al. Microstrip Antenna Theory and Design , 1981 .

[2] R. C. Compton,et al. Quasi-optical power combining using mutually synchronized oscillator arrays , 1991 .

[3] G.M. Rebeiz,et al. A quasi-optical amplifier , 1993, IEEE Microwave and Guided Wave Letters.

[4] Ulrich L. Rohde,et al. Microwave Circuit Design Using Linear and Nonlinear Techniques: Vendelin/Microwave Circuit Design Using Linear and Nonlinear Techniques , 1990 .

[5] Robert A. York,et al. Far-field reflectometry for characterization of active antennas , 1994 .

[6] J. W. Mink,et al. Quasi-Optical Power Combining of Solid-State Millimeter-Wave Sources , 1986 .

[7] D. Rutledge,et al. A grid amplifier , 1991 .