GB2531520B - Antenna impedance matching with negative impedance converters - Google Patents

Antenna impedance matching with negative impedance converters

Info

Publication number
GB2531520B
GB2531520B GB1418563.1A GB201418563A GB2531520B GB 2531520 B GB2531520 B GB 2531520B GB 201418563 A GB201418563 A GB 201418563A GB 2531520 B GB2531520 B GB 2531520B
Authority
GB
United Kingdom
Prior art keywords
converters
impedance
negative
antenna
impedance matching
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.)
Expired - Fee Related
Application number
GB1418563.1A
Other versions
GB2531520A (en
GB201418563D0 (en
Inventor
Hu Sampson
Tade Oluwabunmi
Thind Surinder
Wan Liang
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.)
Smart Antenna Technologies Ltd
Original Assignee
Smart Antenna Technologies 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 Smart Antenna Technologies Ltd filed Critical Smart Antenna Technologies Ltd
Priority to GB1418563.1A priority Critical patent/GB2531520B/en
Publication of GB201418563D0 publication Critical patent/GB201418563D0/en
Priority to PCT/GB2015/053078 priority patent/WO2016063014A1/en
Publication of GB2531520A publication Critical patent/GB2531520A/en
Application granted granted Critical
Publication of GB2531520B publication Critical patent/GB2531520B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/10—Frequency selective two-port networks using negative impedance converters
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/28—Impedance matching networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/28—Impedance matching networks
    • H03H11/30—Automatic matching of source impedance to load impedance
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/40—Impedance converters
    • H03H11/44—Negative impedance converters
    • 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
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/46—One-port networks
    • H03H11/52—One-port networks simulating negative resistances
    • 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
    • H03H7/40—Automatic matching of load impedance to source impedance
    • 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
    • H03H7/46—Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
    • H03H7/463—Duplexers
    • H03H7/465—Duplexers having variable circuit topology, e.g. including switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
GB1418563.1A 2014-10-20 2014-10-20 Antenna impedance matching with negative impedance converters Expired - Fee Related GB2531520B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1418563.1A GB2531520B (en) 2014-10-20 2014-10-20 Antenna impedance matching with negative impedance converters
PCT/GB2015/053078 WO2016063014A1 (en) 2014-10-20 2015-10-16 Antenna impedance matching with negative impedance converters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1418563.1A GB2531520B (en) 2014-10-20 2014-10-20 Antenna impedance matching with negative impedance converters

Publications (3)

Publication Number Publication Date
GB201418563D0 GB201418563D0 (en) 2014-12-03
GB2531520A GB2531520A (en) 2016-04-27
GB2531520B true GB2531520B (en) 2018-07-18

Family

ID=52013245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1418563.1A Expired - Fee Related GB2531520B (en) 2014-10-20 2014-10-20 Antenna impedance matching with negative impedance converters

Country Status (2)

Country Link
GB (1) GB2531520B (en)
WO (1) WO2016063014A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117713870B (en) * 2024-02-06 2024-06-07 深圳飞骧科技股份有限公司 Multi-antenna radio frequency transceiver switch circuit and radio frequency chip
KR102699489B1 (en) * 2024-04-16 2024-08-30 한화시스템 주식회사 Wireless charging system and method based on negative resistance converter capable of improving maximum input power

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8233861B1 (en) * 2008-09-24 2012-07-31 Rockwell Collins, Inc. Switched impedance synthesis transmit antenna matching system for electrically small antenna radiators
US20130009724A1 (en) * 2011-07-06 2013-01-10 Hrl Laboratories, Llc Non-foster circuit stabilization method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1564896A1 (en) * 2004-02-10 2005-08-17 Sony Ericsson Mobile Communications AB Impedance matching for an antenna
US7714676B2 (en) * 2006-11-08 2010-05-11 Paratek Microwave, Inc. Adaptive impedance matching apparatus, system and method
US7880568B2 (en) * 2007-09-17 2011-02-01 Oracle America, Inc. Equalizer system having a tunable active inductor
JP2011250084A (en) * 2010-05-26 2011-12-08 Sony Corp Gyrator circuit, broadband amplifier and radio communication equipment
WO2012139079A2 (en) * 2011-04-07 2012-10-11 Colburn Joseph S Tunable impedance surfaces
US9407239B2 (en) * 2011-07-06 2016-08-02 Hrl Laboratories, Llc Wide bandwidth automatic tuning circuit
US8836602B2 (en) * 2012-01-20 2014-09-16 Samsung Electronics Co., Ltd. Tunable broadband antenna matching circuits and devices using same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8233861B1 (en) * 2008-09-24 2012-07-31 Rockwell Collins, Inc. Switched impedance synthesis transmit antenna matching system for electrically small antenna radiators
US20130009724A1 (en) * 2011-07-06 2013-01-10 Hrl Laboratories, Llc Non-foster circuit stabilization method

Also Published As

Publication number Publication date
GB2531520A (en) 2016-04-27
WO2016063014A1 (en) 2016-04-28
GB201418563D0 (en) 2014-12-03

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20191010 AND 20191016

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20231020