Patent ID: 6690249
Filing Date: 2004-02-10
Classification: H01P,H03F

Abstract:
A power splitter or combiner circuit comprising:first and second stacked dielectric plates; a shield grounding conductor disposed between said first and second dielectric plates; a transmission line comprised of a conductor pattern on said first dielectric plate on the opposite side of said shield grounding conductor, and having an input terminal on an end thereof, and having a first through hole on the other end thereof; first and second quarter-wave length lines with ends thereof commonly connected to said transmission line, and other ends thereof provided with first and second output lines respectively; first and second isolation resistors connected to said other ends of said first and second quarter-wavelength lines, respectively; a common terminal connected to the other ends of said first and second isolation resistors, and provided with a second through hole; third and fourth quarter-wavelength lines disposed parallel to each other, each comprised of a conductor pattern on said second dielectric plate on the opposite side of said shield grounding conductor, and ends thereof commonly connected electrically via said first through hole; third and fourth output lines connected to the other ends of said third and fourth quarter-wavelength lines respectively; third and fourth isolation resistors connected to said other ends of said third and fourth quarter-wavelength lines respectively; and a common terminal connected to the other ends of said third and fourth absorption resistances, and having a through hole connected to said second through hole.