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
Grant status
Application
Patent type
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
Inventor
Shintaro Gomi
Katsuaki Kawamura
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

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00Loop 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
    • H01Q7/04Screened antennas

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 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 (6)

* 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
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Areva Nc In dust and metal-rich environment, the identification device of miniaturized metallic support, and the identification of the receiving container of nuclear fuel elements in the production plants of nuclear fuel elements Applications
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 systems for detecting fluid change

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 (9)

* 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
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
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
JP2013513176A (en) * 2009-12-07 2013-04-18 アレヴァ・エヌセーAreva Nc In dust and metal-rich environment, the identification device of miniaturized metallic support, and the identification of the receiving container of nuclear fuel elements in the production plants of nuclear fuel elements Applications
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
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 systems for detecting fluid change

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