The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 2015
Filed:
Mar. 30, 2012
Min-han Chuang, Taichung Hsien, TW;
Chia-chu Lai, Taichung Hsien, TW;
Bo-shiang Fang, Taichung Hsien, TW;
Ho-chuan Lin, Taichung Hsien, TW;
Sung-chun Wu, Taichung Hsien, TW;
Min-Han Chuang, Taichung Hsien, TW;
Chia-Chu Lai, Taichung Hsien, TW;
Bo-Shiang Fang, Taichung Hsien, TW;
Ho-Chuan Lin, Taichung Hsien, TW;
Sung-Chun Wu, Taichung Hsien, TW;
Siliconware Precision Industries Co., Ltd., Taichung, TW;
Abstract
A cross-coupled bandpass filter includes first, second, third and fourth resonators such that magnetic couplings are generated between the first and second resonators, between the third and fourth resonators and between the first and fourth resonators, a capacitive coupling is generated between the second and third resonators, and the magnetic coupling between the first and fourth resonators has a polarity opposite to that of the capacitive coupling between the second and third resonators, thereby generating two transmission zeros in a transmission rejection band.