IN2014CN04778A - - Google Patents

Info

Publication number
IN2014CN04778A
IN2014CN04778A IN4778CHN2014A IN2014CN04778A IN 2014CN04778 A IN2014CN04778 A IN 2014CN04778A IN 4778CHN2014 A IN4778CHN2014 A IN 4778CHN2014A IN 2014CN04778 A IN2014CN04778 A IN 2014CN04778A
Authority
IN
India
Prior art keywords
output circuit
signal
impedance matching
directional coupler
switchplexer
Prior art date
Application number
Inventor
Calogero D Presti
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of IN2014CN04778A publication Critical patent/IN2014CN04778A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0458—Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/38—Impedance-matching networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/48—Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)

Abstract

An output circuit with an integrated directional coupler and impedance matching circuit is disclosed. In an exemplary design an apparatus includes a switchplexer and an output circuit. The switchplexer is coupled to at least one power amplifier. The output circuit is coupled to the switchplexer and a load (e.g. an antenna) and includes a directional coupler and an impedance matching circuit sharing at least one inductor. The output circuit performs impedance matching for the load. The output circuit also acts as a directional coupler and provides an input radio frequency (RF) signal as an output RF signal and further couples a portion of the input RF signal as a coupled RF signal. Reusing the at least one inductor for both the directional coupler and the impedance matching circuit may reduce circuitry size and cost of the wireless device and may also improve performance.
IN4778CHN2014 2012-01-30 2013-01-30 IN2014CN04778A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/361,854 US9331720B2 (en) 2012-01-30 2012-01-30 Combined directional coupler and impedance matching circuit
PCT/US2013/023936 WO2013116398A1 (en) 2012-01-30 2013-01-30 Combined directional coupler and impedance matching circuit

Publications (1)

Publication Number Publication Date
IN2014CN04778A true IN2014CN04778A (en) 2015-09-18

Family

ID=47714578

Family Applications (1)

Application Number Title Priority Date Filing Date
IN4778CHN2014 IN2014CN04778A (en) 2012-01-30 2013-01-30

Country Status (7)

Country Link
US (1) US9331720B2 (en)
EP (1) EP2810374A1 (en)
JP (1) JP6591163B2 (en)
KR (1) KR102006420B1 (en)
CN (1) CN104081672B (en)
IN (1) IN2014CN04778A (en)
WO (1) WO2013116398A1 (en)

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Also Published As

Publication number Publication date
KR20140117648A (en) 2014-10-07
JP2015509339A (en) 2015-03-26
EP2810374A1 (en) 2014-12-10
CN104081672A (en) 2014-10-01
WO2013116398A1 (en) 2013-08-08
US20130194054A1 (en) 2013-08-01
CN104081672B (en) 2017-05-03
KR102006420B1 (en) 2019-08-01
JP6591163B2 (en) 2019-10-16
US9331720B2 (en) 2016-05-03

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