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GB541905A - Loop antenna - Google Patents

Loop antenna

Info

Publication number
GB541905A
GB541905A GB8280/40A GB828040A GB541905A GB 541905 A GB541905 A GB 541905A GB 8280/40 A GB8280/40 A GB 8280/40A GB 828040 A GB828040 A GB 828040A GB 541905 A GB541905 A GB 541905A
Authority
GB
United Kingdom
Prior art keywords
loop
earth
aerial
wound
spacers
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
Application number
GB8280/40A
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.)
Philco Radio and Television Corp
Original Assignee
Philco Radio and Television 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 Philco Radio and Television Corp filed Critical Philco Radio and Television Corp
Publication of GB541905A publication Critical patent/GB541905A/en
Expired 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

541,905. Aerials. PHILCO RADIO & TELEVISION CORPORATION. May 8, 1940, No. 8280. Convention date, June 5, 1939. [Class 40 (v)] A loop aerial 1 is screened against electrostatic disturbances by an earthed outer winding 2 which is wound over the sides 3, 4 of a rectangular or oval frame made of wood, hard rubber, "Bakelite" (R.T.M.) or the like. The aerial loop 1 is wound upon spacers 5 which are located at the inner edges of the frames so that the capacity between the loop 1 and screen 2 may be minimized. The loop 1 is wound, Fig. 2, on one half of the spacers 5, and the grid connection is taken from the innermost winding, where the capacity between the latter and the screen 2 is least. The aerial is provided with a strip 10 carrying terminals and a padding condenser 12. The screening coil 2 is connected to earth, preferably at its middle point, Fig. 3 (not shown), so that it is balanced with respect to earth and the impedance between the turns and earth is minimized.
GB8280/40A 1939-06-05 1940-05-08 Loop antenna Expired GB541905A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US277550A US2273955A (en) 1939-06-05 1939-06-05 Loop antenna

Publications (1)

Publication Number Publication Date
GB541905A true GB541905A (en) 1941-12-17

Family

ID=23061345

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8280/40A Expired GB541905A (en) 1939-06-05 1940-05-08 Loop antenna

Country Status (2)

Country Link
US (1) US2273955A (en)
GB (1) GB541905A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2472106A (en) * 1943-09-20 1949-06-07 Sperry Corp Broad band antenna
US3717808A (en) * 1971-05-19 1973-02-20 Communications Satellite Corp Shielded coaxial cable transformer
US6668196B1 (en) * 2000-01-21 2003-12-23 Medical Research Group, Inc. Ambulatory medical apparatus with hand held communication device
US7263406B2 (en) * 2003-10-02 2007-08-28 Medtronic, Inc. Medical device programmer with selective disablement of display during telemetry
US7561921B2 (en) * 2003-10-02 2009-07-14 Medtronic, Inc. Neurostimulator programmer with internal antenna
US8442643B2 (en) * 2003-10-02 2013-05-14 Medtronic, Inc. Medical device programmer with reduced-noise power supply
US7272445B2 (en) * 2003-10-02 2007-09-18 Medtronic, Inc. Medical device programmer with faceplate
US7729766B2 (en) 2003-10-02 2010-06-01 Medtronic, Inc. Circuit board construction for handheld programmer
US7991479B2 (en) * 2003-10-02 2011-08-02 Medtronic, Inc. Neurostimulator programmer with clothing attachable antenna
US20050075685A1 (en) * 2003-10-02 2005-04-07 Forsberg John W. Medical device programmer with infrared communication
US7356369B2 (en) * 2003-10-02 2008-04-08 Medtronic, Inc. Z-axis assembly of medical device programmer
US7203549B2 (en) * 2003-10-02 2007-04-10 Medtronic, Inc. Medical device programmer with internal antenna and display
US7612723B2 (en) * 2007-02-02 2009-11-03 Sony Ericsson Mobile Communications Ab Portable communication device antenna arrangement
US7397441B1 (en) * 2007-02-02 2008-07-08 Sony Ericsson Mobile Communications Ab Antenna element for a portable communication device
WO2015081118A1 (en) 2013-11-27 2015-06-04 Gatekeeper Systems, Inc. Loop antenna fixtures and methods

Also Published As

Publication number Publication date
US2273955A (en) 1942-02-24

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