A broadband waveguide to coaxial transition (BTHD) has been designed for Ridged WGs are more suitable than rectangular WGs to convert, in a wide A broadband coax-waveguide transition for the high power test of the PEP-II RF cavity HOM waveguides has been studied. A double ridged waveguide section with the same cut-off frequency as the rectangular waveguide has been selected to keep its impedance near 50 Ohm over the frequency range. Many different waveguide to coaxial transition devices have been built in the past. The prior art broadband transitions typically used double, tapered ridgedA broadband coax-waveguide transition for the high power test of the PEP-II RF A double ridged waveguide section with the same cut-off frequency as the A new over-octave compact transition between double-ridge waveguide and coaxial line is considered. The transition includes an original waveguide-to-coaxial A broadband coax-waveguide transition for the high power test of the PEP-II RF A double ridged waveguide section with the same cut-off frequency as the A very broadband coaxial-to-ridge waveguide transition has been designed for use in antennas and ridge waveguide components. A description of the transition 31 Jul 2018 A 10-100 GHz Coax To Double-Ridged Waveguide Launcher and Horn Antenna The aperture-matched horn uses a half-cosine transition into a linear taper for the Broadband, single-polarization horn antennas are of. A broadband coax-waveguide transition for the high power test of the PEP-II RF cavity HOM waveguides has been studied. A double ridged waveguide section with the same cut-off frequency as the rectangular waveguide has been selected to keep its impedance near 50 Ohm over the frequency range.