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US 2007/0182504 A1Published application
Non-reciprocal circuit device
AssigneeHitachi Metals, Ltd.
InventorsYoshiyuki MUKAI, Shinji YAMAMOTO
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AssigneeHitachi Metals, Ltd.
InventorsYoshiyuki MUKAI, Shinji YAMAMOTO
Estimating the term…
A non-reciprocal circuit device comprising a metal case, a ground plate disposed on an inner bottom surface of the metal case, a resin member disposed on the ground plate and having an opening from which the ground plate is exposed, a planar microwave ferrite member disposed in the opening of the resin member, a strip line member disposed on the planar microwave ferrite member, and a permanent magnet disposed with distance on the strip line member without another planar microwave ferrite member therebetween, the strip line member comprising a connecting portion constituted by strip electrodes radially extending from a center portion, and branch lines radially extending from the center portion between the strip electrodes, low-impedance lines each integrally connected to each of the branch lines and extending along the periphery of the planar microwave ferrite member, and electrodes each integrally connected to each of the low-impedance lines, whereby the branch lines and the ground plate forms microstrip lines, and the low-impedance lines and the ground plate forms a grounded capacitor.
A non-reciprocal circuit device comprising a metal case, a ground plate disposed on an inner bottom surface of said metal case, a resin member disposed on said ground plate and having an opening from which said ground plate is exposed, a planar microwave ferrite member disposed in the opening of said resin member, a strip line member disposed on said planar microwave ferrite member, and a permanent magnet disposed with distance on said strip line member without another planar microwave ferrite member therebetween, said strip line member comprising a connecting portion constituted by strip electrodes radially extending from a center portion, and branch lines radially extending from said center portion between said strip electrodes, low-impedance lines each integrally connected to each of said branch lines and extending along the periphery of said planar microwave ferrite member, and electrodes each integrally connected to each of said low-impedance lines, whereby said branch lines and said ground plate forms microstrip lines, and said low-impedance lines and said ground plate forms a grounded capacitor.
Dependencies are inferred from the claim text.