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Power amplifying circuit and front end module including the same

一种功率放大电路、前端模块的技术，应用在放大装置的零部件、放大器、高频放大器等方向，能够解决未披露放大电路和滤波器分布和实现阻抗匹配电路等问题

Inactive Publication Date: 2014-06-25
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, neither Patent Document 1 nor Patent Document 2 discloses distributing and implementing an impedance matching circuit in an amplifier circuit and a filter, and setting the impedance matching range of the impedance matching circuit included in the amplifier circuit and filter to be continuous.

Method used

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  • Power amplifying circuit and front end module including the same
  • Power amplifying circuit and front end module including the same
  • Power amplifying circuit and front end module including the same

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Embodiment Construction

[0032] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments described herein.

[0033] Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0034] figure 1 It is a block diagram schematically showing a front-end module according to an embodiment of the present invention.

[0035] refer to figure 1 , the front-end module 100 according to the present invention may include a driving circuit unit 110 , a signal amplifying unit 120 , a switching circuit 130 and a filter unit 140 . The filter unit 140 may be connected to the antenna ANT, and transmit and receive wireless signals through the antenna ANT.

[0036] refer to figure 1 The transmission path of the wireless sign...

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Abstract

There are provided a power amplifying circuit and a front end module including the same. The power amplifying circuit includes a signal amplifying unit amplifying and outputting a plurality of wireless signals having different frequency bands, and a diplexer circuit transferring at least one of the plurality of wireless signals output from the signal amplifying unit to an antenna, wherein the signal amplifying unit and the diplexer circuit include impedance matching circuits having different impedance matching ranges, respectively, and the impedance matching range of the diplexer circuit is continuous with that of the signal amplifying unit.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2012-0149972 filed with the Korean Patent Office on Dec. 20, 2012, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to a power amplifying circuit and a front-end module including the same, the power amplifying circuit can have improved operating efficiency and manufacturing yield, and can amplify a plurality of wireless signals having different frequency bands by including An impedance matching circuit in an amplifying circuit unit and a filter for selectively transmitting and receiving at least one of a plurality of wireless signals reduces manufacturing cost. Background technique [0004] Since mobile devices such as smartphones, tablet personal computers (PCs) and the like that transmit and receive data using wireless communication have rapidly become popular, dual-band comm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H7/38
CPCH03F3/45076H04L5/00H03F1/565H03F3/191H03F3/245H03F3/72H03F1/56H03F3/19H04B1/50
Inventor 金基仲金南兴宋泳镇韩明愚元俊九饭塚伸一金胤锡
Owner SAMSUNG ELECTRO MECHANICS CO LTD
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