Dielectric resonator filter with coupling ring and antenna syste

Details Dielectric resonator filter with coupling ring and antenna syste Dielectric resonator filter with coupling ring and antenna syste

1994-05-11

1996-05-14

Lee, Benny T.

Communications: radio wave antennas

Antennas

With polarization filter or converter

343776, 343786, 333202, 333212, 3332191, 333230, H01Q 1524, H01P 1208

Patent

active

055172032

ABSTRACT:
A plurality of dual mode, dielectric resonator loaded cavity filters may be coupled to respective ones of a plurality of radiators of an array antenna, such as a phased array antenna. Each of the filters is provided with a thin annular, electrically conductive ring disposed on a resonator surface facing the corresponding radiator of the antenna. The ring greatly increases the coupling of electromagnetic power for circularly and linearly polarized waves between the filter and the radiator for radiation of the power from the radiator into space, as well as during reception of radiation from outer space. The filter is operative also, if desired, to provide such coupling of electromagnetic power to a waveguide, as well as directly into the external environment. The ring may be located at the opening of the cavity through which the power is coupled between the filter and the radiator or the waveguide or the empty space.

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