Back to results
US 5,668,511 AGranted
Low-pass filter
AssigneeMurata Manufacturing Co., Ltd.
InventorsKoji Furutani, Mitsuhide Kato, Teruhisa Tsuru
Life of this patent
Estimating the term…
Abstract
A low-pass filter is obtained by inserting a third dielectric substrate having a shielding electrode on its upper surface between a first dielectric substrate having microstriplines on its upper surface and a second dielectric substrate having capacitor electrodes on its upper surface, stacking fourth and fifth dielectric substrates having ground electrodes on upper surfaces thereof on both sides of the first to third dielectric substrates, and stacking a dielectric sheet on the uppermost portion.
Claims10
A low-pass filter comprising:
- a plurality of dielectric layers forming a multilayer structure, the multilayer structure comprising:
- a first dielectric substrate having a microstripline on a first surface thereof;
- a second dielectric substrate having at least one capacitor electrode on a first surface thereof;
- a third dielectric substrate having a thin shielding electrode on a first surface thereof and being arranged between said first and second dielectric substrates
- said shielding electrode being disposed such that said first dielectric substrate separates said shielding electrode from said microstrip line and said third dielectric substrate separating said capacitor electrode from said shielding electrode;
- a dielectric sheet provided on a first surface of said multilayer structure;
- and
- a fourth dielectric substrate having a ground electrode on a first surface thereof, the fourth dielectric substrate being disposed on a second surface of said multilayer structure opposite to said first surface of said multilayer structure;
- said ground electrode of said fourth dielectric substrate being electrically connected with said shielding electrode of said second dielectric substrate.
6 more elements
Dependencies are inferred from the claim text.