Back to results
US 2001/0024149 A1Published application
Surface acoustic wave device
AssigneeSanyo Electric Co., Ltd.
InventorsYasumi Kobayashi, Kazuya Niki
Life of this patent
Estimating the term…
Abstract
A SAW filter includes input and output IDTs and a pattern inductor connected in parallel with the output IDT. The pattern inductor is constructed of a metallic thin film pattern of meander type with a self-inductance amount of 20 nH for example.
Claims8
A surface acoustic wave device comprising:
- a piezoelectric substrate;
- an input electrode and an output electrode formed on said piezoelectric substrate;
- and
- inductor means formed on said piezoelectric substrate for correcting an impedance imbalance between said input electrode and said output electrode.
1 more element
Dependencies are inferred from the claim text.