Matching segment circuit to which radio frequency is applied and radio frequency integrated devices using the matching segment circuit

a technology of matching segment circuit and radio frequency, which is applied in the direction of impedence network, multiple-port network, electrical apparatus, etc., can solve the problems of reducing transmission efficiency and achieve the effect of enhancing the function of duplexers and reducing circuit siz

Inactive Publication Date: 2012-05-10
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0031]By using a matching segment circuit to which an RF is applied, the size of the circuit may be reduced, and an impedance of an input end and an impedance of an output end different from the input end may be effectively matched.
[0032]By using a duplexer including a matching segment circuit to which an RF is applied, a function of the duplexer may be enhanced.

Problems solved by technology

As a result, transmission efficiency may be decreased.

Method used

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  • Matching segment circuit to which radio frequency is applied and radio frequency integrated devices using the matching segment circuit
  • Matching segment circuit to which radio frequency is applied and radio frequency integrated devices using the matching segment circuit
  • Matching segment circuit to which radio frequency is applied and radio frequency integrated devices using the matching segment circuit

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Embodiment Construction

[0041]The following detailed description is provided to assist the reader in gaining a comprehensive understanding of the methods, apparatuses, and / or systems described herein. Accordingly, various changes, modifications, and equivalents of the methods, apparatuses, and / or systems described herein will be suggested to those of ordinary skill in the art. Also, description of well-known functions and constructions may be omitted for increased clarity and conciseness.

[0042]A matching segment circuit to which a radio frequency (RF) is applied and an RF integrated device according to various examples may be included in a mobile device to be utilized in a wireless mobile communication service field. In more detail, the matching segment circuit to which an RF is applied and the RF integrated device may be used as a matching unit for reducing reflections due to an impedance difference between an output end and an input end of a device such as, for example, an RF duplexer or an RF multiplexe...

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Abstract

Provided are a matching segment circuit, to which a radio frequency (RF) is applied, and an RF integrated device using the matching segment circuit. The matching segment circuit to which an RF is applied may include an input end connected to a first RF device, a parallel segment having a first capacitor and a first inductor connected in parallel, a second inductor connected to the parallel segment in series, and an output end connected to a second RF device. The first capacitor, the first inductor, and the second inductor may be configured so that an impedance of the first RF device and an impedance of the second RF device may match.

Description

CROSS-REFERENCE TO RELATED APPLICATION(S)[0001]This application claims the benefit under 35 U.S.C. §119(a) of Korean Patent Application No. 10-2010-0111045, filed on Nov. 9, 2010, in the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference for all purposes.BACKGROUND[0002]1. Field[0003]The following description relates to a matching circuit for reducing reflections due to an impedance difference between an input end and an output end, and a radio frequency (RF) integrated device using the matching circuit.[0004]2. Description of Related Art[0005]In situations in which different radio frequency (RF) devices are connected to an input end and an output end of a duplexer or a multiplexer to which an RF is applied, a signal or power may be reflected due to an impedance difference between the two different connection ends. As a result, transmission efficiency may be decreased. In general, the impedance difference between two different con...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H03H7/38
CPCH03H7/38H03H9/54H03H2007/386
Inventor KIM, DUCK HWANSONG, IN SANGKIM, CHUL SOOKIM, YOUNG ILSHIN, JEA SHIK
Owner SAMSUNG ELECTRONICS CO LTD
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