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JPS5627509A - Shielded loop antenna - Google Patents

Shielded loop antenna

Info

Publication number
JPS5627509A
JPS5627509A JP10370479A JP10370479A JPS5627509A JP S5627509 A JPS5627509 A JP S5627509A JP 10370479 A JP10370479 A JP 10370479A JP 10370479 A JP10370479 A JP 10370479A JP S5627509 A JPS5627509 A JP S5627509A
Authority
JP
Japan
Prior art keywords
loop antenna
shielded loop
inner conductor
cable
cut
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.)
Pending
Application number
JP10370479A
Other languages
Japanese (ja)
Inventor
Shintaro Gomi
Katsuaki Kawamura
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP10370479A priority Critical patent/JPS5627509A/en
Publication of JPS5627509A publication Critical patent/JPS5627509A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01Q7/04—Screened antennas

Landscapes

  • Details Of Aerials (AREA)

Abstract

PURPOSE:To obtain a shielded loop antenna with impedance characteristics less in variance by using an inner conductor as an antenna by curving in a ring shape a coaxial cable that has an outer conductor of ring-shaped section such as a semirigid cable. CONSTITUTION:A semirigid cable of fixed length is used and inner conductor 1 is cut by notching the center part partially to lead one end out. Then, outer conductor 2 and dielectric layer 4 at one end part are cut to a fixed length and inner conductor 1 is left. Next, the semirigid cable is curved in a ring shape to obtain an unbalanced type shielded loop antenna.
JP10370479A 1979-08-15 1979-08-15 Shielded loop antenna Pending JPS5627509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10370479A JPS5627509A (en) 1979-08-15 1979-08-15 Shielded loop antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10370479A JPS5627509A (en) 1979-08-15 1979-08-15 Shielded loop antenna

Publications (1)

Publication Number Publication Date
JPS5627509A true JPS5627509A (en) 1981-03-17

Family

ID=14361130

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10370479A Pending JPS5627509A (en) 1979-08-15 1979-08-15 Shielded loop antenna

Country Status (1)

Country Link
JP (1) JPS5627509A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5081419A (en) * 1990-10-09 1992-01-14 Baker Hughes Incorporated High sensitivity well logging system having dual transmitter antennas and intermediate series resonant
JPH0766620A (en) * 1993-06-17 1995-03-10 Mitsubishi Electric Corp antenna
JPH08330841A (en) * 1995-05-30 1996-12-13 N H K Itec:Kk Multifrequency tuning-type loop antenna device
WO2004084348A1 (en) * 2003-03-19 2004-09-30 Sony Corporation Antenna device and antenna device manufacturing method
JP2009303037A (en) * 2008-06-16 2009-12-24 Toshiba Corp Antenna device and radio apparatus
EP2202842A1 (en) 2001-09-07 2010-06-30 Seiko Epson Corporation Electronic timepiece with a contactless data communication function, and a contactless data communcation system
JP2013513176A (en) * 2009-12-07 2013-04-18 アレヴァ・エヌセー Identification device for miniaturized metal supports in dusty and metaly environments and identification applications for nuclear fuel element containment containers in nuclear fuel element manufacturing plants
JP2015507945A (en) * 2012-01-19 2015-03-16 セレブロテック メディカル システムズ インコーポレイテッド Diagnostic system for detecting fluid changes
CN109564817A (en) * 2016-07-27 2019-04-02 埃塔埃姆股份有限公司 Coil assembly
US10743815B2 (en) 2012-01-19 2020-08-18 Cerebrotech Medical Systems, Inc. Detection and analysis of spatially varying fluid levels using magnetic signals
US11357417B2 (en) 2012-01-19 2022-06-14 Cerebrotech Medical Systems, Inc. Continuous autoregulation system
AT525118A1 (en) * 2021-05-27 2022-12-15 Sensideon Gmbh Device for long-term temperature measurement of temperatures above 200 °C

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550137A (en) * 1968-09-20 1970-12-22 Gen Dynamics Corp Constant impedance loop antenna
US3973263A (en) * 1973-04-20 1976-08-03 The United States Of America As Represented By The Secretary Of The Navy Sensitivity improvement of spaced-loop antenna by capacitive gap loading

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550137A (en) * 1968-09-20 1970-12-22 Gen Dynamics Corp Constant impedance loop antenna
US3973263A (en) * 1973-04-20 1976-08-03 The United States Of America As Represented By The Secretary Of The Navy Sensitivity improvement of spaced-loop antenna by capacitive gap loading

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5402068A (en) * 1988-03-24 1995-03-28 Baker Hughes Incorporated Method and apparatus for logging-while-drilling with improved performance through cancellation of systemic errors through combination of signals, utilization of dedicated transmitter drivers, and utilization of selected reference signals
US5081419A (en) * 1990-10-09 1992-01-14 Baker Hughes Incorporated High sensitivity well logging system having dual transmitter antennas and intermediate series resonant
JPH0766620A (en) * 1993-06-17 1995-03-10 Mitsubishi Electric Corp antenna
JPH08330841A (en) * 1995-05-30 1996-12-13 N H K Itec:Kk Multifrequency tuning-type loop antenna device
EP2202842A1 (en) 2001-09-07 2010-06-30 Seiko Epson Corporation Electronic timepiece with a contactless data communication function, and a contactless data communcation system
WO2004084348A1 (en) * 2003-03-19 2004-09-30 Sony Corporation Antenna device and antenna device manufacturing method
JP2004289308A (en) * 2003-03-19 2004-10-14 Sony Corp Antenna assembly and antenna assembl manufacturing method
US7345644B2 (en) 2003-03-19 2008-03-18 Sony Corporation Antenna device, and method of manufacturing antenna device
JP2009303037A (en) * 2008-06-16 2009-12-24 Toshiba Corp Antenna device and radio apparatus
US9053403B2 (en) 2009-12-07 2015-06-09 Areva Nc Device having reduced overall dimensions for identifying a metal substrate in a dusty and metallic environment, and application for identifying containers containing nuclear fuel elements in the production plant thereof
JP2013513176A (en) * 2009-12-07 2013-04-18 アレヴァ・エヌセー Identification device for miniaturized metal supports in dusty and metaly environments and identification applications for nuclear fuel element containment containers in nuclear fuel element manufacturing plants
JP2018020174A (en) * 2012-01-19 2018-02-08 セレブロテック メディカル システムズ インコーポレイテッド Diagnostic system for detecting fluid changes
JP2015507945A (en) * 2012-01-19 2015-03-16 セレブロテック メディカル システムズ インコーポレイテッド Diagnostic system for detecting fluid changes
US10335054B2 (en) 2012-01-19 2019-07-02 Cerebrotech Medical Systems, Inc. Method for detecting fluid in cranuim via time varying magnetic field phase shifts
JP2019141679A (en) * 2012-01-19 2019-08-29 セレブロテック メディカル システムズ インコーポレイテッド Diagnostic system for detection of fluid changes
US10743815B2 (en) 2012-01-19 2020-08-18 Cerebrotech Medical Systems, Inc. Detection and analysis of spatially varying fluid levels using magnetic signals
US11166671B2 (en) 2012-01-19 2021-11-09 Cerebrotech Medical Systems, Inc. Differentiation of fluid volume change
US11357417B2 (en) 2012-01-19 2022-06-14 Cerebrotech Medical Systems, Inc. Continuous autoregulation system
US11612331B2 (en) 2012-01-19 2023-03-28 Cerebrotech Medical Systems, Inc. Headset device for detecting fluid in cranium via time varying magnetic field phase shifts and harmonics of fundamental frequencies
US11723597B2 (en) 2012-01-19 2023-08-15 Cerebrotech Medical Systems, Inc. Detection and analysis of spatially varying fluid levels using magnetic signals
CN109564817A (en) * 2016-07-27 2019-04-02 埃塔埃姆股份有限公司 Coil assembly
JP2019531607A (en) * 2016-07-27 2019-10-31 イータエム ゲーエムベーハーｅｔａＥＭ ＧｍｂＨ Coil assembly
AT525118A1 (en) * 2021-05-27 2022-12-15 Sensideon Gmbh Device for long-term temperature measurement of temperatures above 200 °C
AT525118B1 (en) * 2021-05-27 2025-04-15 Sensideon Gmbh Device for long-term temperature measurement of temperatures above 200 °C

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