GB0201313D0 - Multi-band small loop antenna - Google Patents

Multi-band small loop antenna

Info

Publication number
GB0201313D0
GB0201313D0 GBGB0201313.4A GB0201313A GB0201313D0 GB 0201313 D0 GB0201313 D0 GB 0201313D0 GB 0201313 A GB0201313 A GB 0201313A GB 0201313 D0 GB0201313 D0 GB 0201313D0
Authority
GB
United Kingdom
Prior art keywords
loop antenna
small loop
band small
band
antenna
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.)
Withdrawn
Application number
GBGB0201313.4A
Other versions
GB2384367A (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.)
EDGINTON BENJAMIN
Original Assignee
EDGINTON BENJAMIN
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 EDGINTON BENJAMIN filed Critical EDGINTON BENJAMIN
Priority to GB0201313A priority Critical patent/GB2384367A/en
Publication of GB0201313D0 publication Critical patent/GB0201313D0/en
Publication of GB2384367A publication Critical patent/GB2384367A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/06—Details
    • H01Q9/14—Length of element or elements adjustable
    • 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
    • H01Q5/321—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 within a radiating element or between connected radiating elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/005—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with variable reactance for tuning the antenna
GB0201313A 2002-01-22 2002-01-22 Multi-band small loop antenna Withdrawn GB2384367A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0201313A GB2384367A (en) 2002-01-22 2002-01-22 Multi-band small loop antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0201313A GB2384367A (en) 2002-01-22 2002-01-22 Multi-band small loop antenna

Publications (2)

Publication Number Publication Date
GB0201313D0 true GB0201313D0 (en) 2002-03-06
GB2384367A GB2384367A (en) 2003-07-23

Family

ID=9929450

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0201313A Withdrawn GB2384367A (en) 2002-01-22 2002-01-22 Multi-band small loop antenna

Country Status (1)

Country Link
GB (1) GB2384367A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102282724A (en) * 2008-12-15 2011-12-14 盖尔创尼克斯有限公司 Inductively coupled band selectable and tunable antenna
US8390516B2 (en) * 2009-11-23 2013-03-05 Harris Corporation Planar communications antenna having an epicyclic structure and isotropic radiation, and associated methods
DE102010010371B4 (en) * 2010-02-19 2011-12-22 Antennentechnik Bad Blankenburg Ag Active antenna for multi-frequency diversity reception
US8482467B2 (en) 2010-06-25 2013-07-09 Apple Inc. Customizable antenna structures for adjusting antenna performance in electronic devices
US9070969B2 (en) 2010-07-06 2015-06-30 Apple Inc. Tunable antenna systems
US9246221B2 (en) 2011-03-07 2016-01-26 Apple Inc. Tunable loop antennas
US9166279B2 (en) 2011-03-07 2015-10-20 Apple Inc. Tunable antenna system with receiver diversity
US9287627B2 (en) 2011-08-31 2016-03-15 Apple Inc. Customizable antenna feed structure
US9350069B2 (en) 2012-01-04 2016-05-24 Apple Inc. Antenna with switchable inductor low-band tuning
US9190712B2 (en) 2012-02-03 2015-11-17 Apple Inc. Tunable antenna system
EP3439109A1 (en) * 2017-08-01 2019-02-06 Antretter & Huber GmbH Transmission and/or receiving device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE399765A (en) * 1933-07-07
NL275456A (en) * 1961-06-20
GB2038561B (en) * 1978-12-12 1983-02-09 Rylands F Variable high frequency frame antenna
FR2545279B1 (en) * 1983-04-27 1986-03-14 Applic Rech Electronique TUNED LOOP ANTENNA WITH RANGE SWITCHING
GB2279505B (en) * 1993-06-29 1996-10-30 Roke Manor Research Improvements in or relating to antenna tuning unit
JP3621468B2 (en) * 1995-05-30 2005-02-16 株式会社エヌエイチケイアイテック Multi-frequency tuned loop antenna device
JP3629448B2 (en) * 2001-07-27 2005-03-16 Ｔｄｋ株式会社 ANTENNA DEVICE AND ELECTRONIC DEVICE HAVING THE SAME

Also Published As

Publication number Publication date
GB2384367A (en) 2003-07-23

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)