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.

Date of Patent:
Apr. 14, 2020

Filed:

Jan. 29, 2018
Applicant:

Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;

Inventor:

Ming-Hsien Tsai, New Taipei, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 7/46 (2006.01); H04B 1/00 (2006.01); H03H 7/01 (2006.01); H03H 7/38 (2006.01); H03H 1/00 (2006.01);
U.S. Cl.
CPC ...
H03H 7/463 (2013.01); H03H 7/0115 (2013.01); H03H 7/0123 (2013.01); H03H 7/0153 (2013.01); H03H 7/1741 (2013.01); H03H 7/1766 (2013.01); H03H 7/38 (2013.01); H04B 1/0057 (2013.01); H03H 2001/0021 (2013.01); H03H 2001/0078 (2013.01); H03H 2001/0085 (2013.01); H03H 2007/386 (2013.01);
Abstract

According to some embodiments, an on-chip diplexer circuit is disclosed. The on-chip diplexer circuit includes a LC resonator module, the LC resonator module further comprises a first port, a first LC resonator unit and a second LC resonator unit; a first filter unit, the first filter unit is electrically connected to the first LC resonator unit in the LC resonator module, and the first filter unit is electrically connected to a second port; and a second filter unit, the second filter unit is electrically connected to the second LC resonator unit in the LC resonator module, and the second filter unit is electrically connected to a third port. According to some embodiments, the first LC resonator unit serves as an impedance matching circuit for a first signal having a first resonant frequency and serves as an open circuit for a second signal having a second resonant frequency that is different from the first resonant frequency; the second LC resonator unit serves as an impedance matching circuit for the second signal having the second resonant frequency and serves as an open circuit for the first signal having the first resonant frequency. The first filter unit passes signals with the first resonant frequency; and the second filter unit passes signals with the second resonant frequency.


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