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:
Jul. 02, 2019
Filed:
Mar. 30, 2018
Murata Manufacturing Co., Ltd., Kyoto, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
A PA module (A) includes a previous stage amplification element () to amplify a high-frequency signal, a posterior stage amplification element () to amplify the high-frequency signal amplified by the previous stage amplification element (), and a variable filter circuit arranged between the previous stage amplification element () and the posterior stage amplification element () to vary a pass band and an attenuation band in accordance with a frequency band of the high-frequency signal, in which the variable filter circuit includes a filter portion () and switches (and) to vary the pass band and the attenuation band of the variable filter circuit, and the previous stage amplification element () and at least a part of the switches (and) are formed in one chip using a chip A, the posterior stage amplification element () are included in a second chip which is different from the chip A.