Title :
A new class of dual-mode directional couplers for compact dual-polarization beam-forming networks
Author :
Alessandri, Ferdinando ; Ravanelli, Rodolfo
Author_Institution :
Istituto di Elettronica, Perugia Univ., Italy
fDate :
9/1/1997 12:00:00 AM
Abstract :
A new class of directional couplers for the realization of compact dual-polarization beam-forming networks is presented. This component functions as two independent directional couplers for the TE01 mode and the TE10 mode of a rectangular waveguide. The two modes are not coupled. Different values of the coupling for the two modes can be obtained. This coupler can be used twice for two orthogonal polarizations. Therefore a considerable reduction of size and complexity of the overall network can be obtained. Experimental data for a 3-dB dual mode coupler are also presented here
Keywords :
antenna feeds; directional couplers; electromagnetic wave polarisation; rectangular waveguides; satellite antennas; BFN; TE01 mode; TE10 mode; compact beam-forming networks; dual-mode directional couplers; dual-polarization beam-forming networks; orthogonal polarizations; rectangular waveguide; Antenna feeds; Directional couplers; Helium; Polarization; Propagation constant; Rectangular waveguides; Satellites; Scattering parameters; Tellurium; Waveguide components;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
