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:
Nov. 01, 2016

Filed:

Jun. 16, 2015
Applicant:

Airoha Technology Corp., Hsinchu, TW;

Inventor:

Chien-Kuang Lee, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/02 (2006.01); H04B 1/04 (2006.01); H04B 1/00 (2006.01);
U.S. Cl.
CPC ...
H04B 1/04 (2013.01); H04B 1/006 (2013.01); H04B 1/0483 (2013.01); H04B 2001/0408 (2013.01);
Abstract

A multi-mode and multi-band front-end device comprises at least one amplifier unit, at least one switching unit, at least one control unit, a plurality of transmission paths, and a plurality of frequency matching networks. The switching unit comprises at least input end and a plurality of connecting ends. Wherein the input end is electrically connected to the amplifier unit, and each of connecting ends is connected to each of transmission paths, respectively. Each of frequency matching networks is configured on each of transmission paths, and achieves impedance matching at different frequency bands, respectively. The multi-mode and multi-band front-end device is able to select one of transmission paths to transmit RF signal according to the frequency band of RF signal to be transmitted so as to improve the output power of the multi-mode and multi-band front-end device.


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