GB201219839D0 - Adaptive antenna impedance matching - Google Patents

Adaptive antenna impedance matching

Info

Publication number
GB201219839D0
GB201219839D0 GBGB1219839.6A GB201219839A GB201219839D0 GB 201219839 D0 GB201219839 D0 GB 201219839D0 GB 201219839 A GB201219839 A GB 201219839A GB 201219839 D0 GB201219839 D0 GB 201219839D0
Authority
GB
United Kingdom
Prior art keywords
antenna
module
inductor
tuning
differential amplifier
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GBGB1219839.6A
Other versions
GB2502848A (en
GB2502848B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority to GB1219839.6A priority Critical patent/GB2502848B/en
Priority claimed from GB1209981.8A external-priority patent/GB2502787B/en
Publication of GB201219839D0 publication Critical patent/GB201219839D0/en
Publication of GB2502848A publication Critical patent/GB2502848A/en
Application granted granted Critical
Publication of GB2502848B publication Critical patent/GB2502848B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/125—Means for positioning
    • H01Q1/1257—Means for positioning using the received signal strength
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

An apparatus 600 and method compensating for impedance mismatch of an aerial comprises an antenna mismatch detection module 601 and an antenna tuning module 602. The mismatch detection module 601 comprises a differential amplifier 619 comparing first and second voltages derived from an antenna input and a power amplifier 620 respectively. The antenna input and power amplifier 620 output are connected by an inductor 610. The voltage difference across the inductor 610 is proportional to impedance mismatch. A tuning circuit may be provided in the antenna tuning module 602, comprising a variable capacitor which can be connected to the output of the differential amplifier 619. The tuning circuit may further comprise a capacitor or an inductor connected to the terminal of the variable capacitor. A bridge circuit may be provided in the mismatch detection module 601, comprising capacitors 613, 615, 616, 618 and diodes 614, 617. A processing module and a low pass filter may also be provided between the differential amplifier 619 and the tuning circuit.
GB1219839.6A 2012-06-06 2012-06-06 Adaptive antenna impedance matching Expired - Fee Related GB2502848B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1219839.6A GB2502848B (en) 2012-06-06 2012-06-06 Adaptive antenna impedance matching

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1209981.8A GB2502787B (en) 2012-06-06 2012-06-06 Adaptive antenna impedance matching
GB1219839.6A GB2502848B (en) 2012-06-06 2012-06-06 Adaptive antenna impedance matching

Publications (3)

Publication Number Publication Date
GB201219839D0 true GB201219839D0 (en) 2012-12-19
GB2502848A GB2502848A (en) 2013-12-11
GB2502848B GB2502848B (en) 2015-01-28

Family

ID=47429139

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1219839.6A Expired - Fee Related GB2502848B (en) 2012-06-06 2012-06-06 Adaptive antenna impedance matching

Country Status (1)

Country Link
GB (1) GB2502848B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10483939B2 (en) 2015-11-13 2019-11-19 Halliburton Energy Services, Inc. Downhole logging tool using resonant cavity antennas with real-time impedance matching

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2287441A1 (en) * 1998-02-19 1999-08-26 Stephen Leigh Kuffner Data communications terminal and method of adjusting a power signal generated therefrom
FR2920927B1 (en) * 2007-09-11 2011-05-06 Commissariat Energie Atomique AUTOMATIC RADIOFREQUENCY CIRCUIT IMPEDANCE ADAPTATION METHOD AND AUTOMATICALLY ADAPTABLE TRANSMISSION OR RECEPTION SYSTEM
US9166533B2 (en) * 2009-07-30 2015-10-20 Qualcomm Incorporated Bias current monitor and control mechanism for amplifiers
FR2949922B1 (en) * 2009-09-07 2011-10-28 Commissariat Energie Atomique MULTIBAND ANTENNA IMPEDANCE ADAPTATION METHOD AND AUTOMATICALLY ADAPTABLE TRANSMISSION OR RECEPTION CHAIN.
GB2476035B (en) * 2009-12-08 2016-06-01 Microsoft Technology Licensing Llc Improvements relating to power amplifiers and antennas

Also Published As

Publication number Publication date
GB2502848A (en) 2013-12-11
GB2502848B (en) 2015-01-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20190606