US3683393A - Helical dipole antenna - Google Patents
Helical dipole antenna Download PDFInfo
- Publication number
- US3683393A US3683393A US52574A US3683393DA US3683393A US 3683393 A US3683393 A US 3683393A US 52574 A US52574 A US 52574A US 3683393D A US3683393D A US 3683393DA US 3683393 A US3683393 A US 3683393A
- Authority
- US
- United States
- Prior art keywords
- strip
- support member
- conductive material
- central portion
- electrically conductive
- 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 - Lifetime
Links
- 239000004020 conductor Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 2
- 238000004804 winding Methods 0.000 description 2
- 101100264195 Caenorhabditis elegans app-1 gene Proteins 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas
Definitions
- Another desirable feature in an antenna is that of low weight.
- an object of this invention is to provide an antenna element which has a shorter physical length than its effective electrical or resonant length.
- Another object of this invention is to provide an antenna element which has less weight and length than a conventional antenna which is used for the same frequency or range of frequencies.
- Another object of this invention is to provide an antenna element which can be constructed at relatively low costs and which is long-lived.
- FIG. 1 is an elevational view, with parts broken away, of an antenna element of this invention.
- FIG. 2 is an enlarged fragmentary elevational view, with parts shown in section, of a portion of an antenna element of this invention.
- An antenna element of this invention preferably, comprises a tubular member 12, which has its largest dimension or diameter at the central portion thereof.
- the tubular member 12 has a gradually reduced diameter from the central portion thereof to each end thereof.
- the tubular member 12 is, preferably, made of any suitable electrically non-conductive material. Plastics materials such as fibrous glass have been found to be very satisfactory.
- a tape or ribbon or strip 16 of conductive material is helically wound upon the tubular member 12.
- the conductive strip 16 is in two portions, each portion extending from the central portion of the tubular member to an end thereof.
- the conductive strip 16 has a very small thickness dimension in consideration of its width dimension, as illustrated in FIG. 2.
- the conductive strip 16 may be of copper or any other suitable electrically conductive material.
- the conductive strip 16 has several advantages over a conductor of circular cross section, among which are:
- the strip 16 being flat, readily conforms to the shape of the tubular member 12 and can be tightly wound upon the tubular member 12 and the spacing between convolutions can be accurately maintained, without the possibility of roll action of the conductor, either during the winding operation or after the winding operation.
- a round conductor as it is wound upon a rod or tubular member tends to roll.
- llie flat tape or strip permits a maximum of current carrying capacity in a helically wound conductor in consideration of the weight thereof.
- an antenna element of this invention has a greater effective electrical length for a given physical length than does an antenna element which comprises a continuous substantially straight length of electrical conductive material, such as an electrically conductive tube or rod.
- An antenna of this invention which includes a coil of electrically conductive strip material upon a non-conductive support member, may be 25 to 30 percent shorter in physical length than a conventional antenna element, such as a rod or tube, which is of conductive material throughout its entire length.
- an antenna of this invention has relatively low inductive and capacitive reactance.
- An antenna element of this invention has a relatively broad resonance characteristic.
- An antenna element for receiving and transmitting radio frequency energy comprising:
- an elongate tubular electrically non-conductive support member of fibrous glass material having a maximum cross-sectional dimension at the central portion thereof and having smaller cross-sectional dimension from the central portion thereof to each end thereof, an elongate strip of ribbon-like electrically conductive material helically arranged upon the outer surface of the support member, the strip of ribbon-like electrically conductive material having spaced-apart convolutions extending along the support member, the strip of conductive material having a width dimension which is large compared to its thickness dimension, the strip of electrically conductive material being in two parts, each part extending from the central portion of the support member to one of the ends thereof.
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- Details Of Aerials (AREA)
Abstract
An antenna for communication equipment, in which a conductor in the form of a ribbon or strip is helically wound upon a tube or rod which is made of plastic material or the like.
Description
United States Patent I 1 3,683,393
Self 1 1 Aug. 8, 1972 [54] HELICAL DIPOLE ANTENNA 2,763,003 9/1956 Harris ..343/873 Inventor: Aaron C. f, y l 0 Harris 4 2,952,850 9/1960 Herz 343/895 [73] Assignee: Electrotec Corporation, Dayton, 3,192,529 6/1965 Chatelain ..343/895 Ohio 3,523,251 8/1970 Halstead ..343/895 Filed: J y 6, 1970 FOREIGN PATENTS OR APPLICATIONS [21] App1.No.: 52,574 1,056,679 5/1959 Germany ..343/895 Primary Examiner-Eli Lieberman [52] US. Cl ..343/806, 343/895 51 int. C1. ..H0lq 1/36 At'omey Meckstroth of Search [56] References Cited An antenna for communication equipment, in which a conductor in the form of a ribbon or strip is helically UNITED STATES PATENTS wound upon a tube or rod which is made of plastic material or the like. 2,613,319 10/1952 LIsbIn et a1 ..343/895 2,682,608 1 Claim, 2 Drawing Figures 6/1954 Johnson ..343/895 HELICAL DIPOLE ANTENNA BACKGROUND OF THE INVENTION A desirable feature in an antenna is that of havingminimum physical dimensions in consideration of its frequency response capabilities.
Another desirable feature in an antenna is that of low weight.
Thus, an object of this invention is to provide an antenna element which has a shorter physical length than its effective electrical or resonant length.
Another object of this invention is to provide an antenna element which has less weight and length than a conventional antenna which is used for the same frequency or range of frequencies.
Another object of this invention is to provide an antenna element which can be constructed at relatively low costs and which is long-lived.
Other objects and advantages reside in the construction of the invention, combinations thereof, the method of manufacture, and the mode of operation, as will become more apparent from the following description.
BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is an elevational view, with parts broken away, of an antenna element of this invention.
FIG. 2 is an enlarged fragmentary elevational view, with parts shown in section, of a portion of an antenna element of this invention.
DETAILED DESCRIPTION OF THE INVENTION An antenna element of this invention, preferably, comprises a tubular member 12, which has its largest dimension or diameter at the central portion thereof. The tubular member 12 has a gradually reduced diameter from the central portion thereof to each end thereof. The tubular member 12 is, preferably, made of any suitable electrically non-conductive material. Plastics materials such as fibrous glass have been found to be very satisfactory.
A tape or ribbon or strip 16 of conductive material is helically wound upon the tubular member 12. The conductive strip 16 is in two portions, each portion extending from the central portion of the tubular member to an end thereof. Preferably the conductive strip 16 has a very small thickness dimension in consideration of its width dimension, as illustrated in FIG. 2.
The conductive strip 16 may be of copper or any other suitable electrically conductive material. The conductive strip 16 has several advantages over a conductor of circular cross section, among which are:
a. The strip 16, being flat, readily conforms to the shape of the tubular member 12 and can be tightly wound upon the tubular member 12 and the spacing between convolutions can be accurately maintained, without the possibility of roll action of the conductor, either during the winding operation or after the winding operation. On the other hand, a round conductor as it is wound upon a rod or tubular member, tends to roll. Thus, accurate spacingnv utions thereof. b. llie flat tape or strip permits a maximum of current carrying capacity in a helically wound conductor in consideration of the weight thereof.
It has been found that an antenna element of this invention as illustrated in the figures, has a greater effective electrical length for a given physical length than does an antenna element which comprises a continuous substantially straight length of electrical conductive material, such as an electrically conductive tube or rod. An antenna of this invention, which includes a coil of electrically conductive strip material upon a non-conductive support member, may be 25 to 30 percent shorter in physical length than a conventional antenna element, such as a rod or tube, which is of conductive material throughout its entire length.
It has also been found that an antenna of this invention has relatively low inductive and capacitive reactance.
An antenna element of this invention has a relatively broad resonance characteristic.
Although the preferred embodiment of the device has been described, it will be understood that within the purview of this invention various changes may be made in the form, details, proportion and arrangement of parts, the combination thereof and mode of opera tion, which generally stated consist in a device capable of carrying out the objects set forth, as disclosed and defined in the appended claim.
The invention having thus been described the following is claimed:
1. An antenna element for receiving and transmitting radio frequency energy, comprising:
an elongate tubular electrically non-conductive support member of fibrous glass material, the support member having a maximum cross-sectional dimension at the central portion thereof and having smaller cross-sectional dimension from the central portion thereof to each end thereof, an elongate strip of ribbon-like electrically conductive material helically arranged upon the outer surface of the support member, the strip of ribbon-like electrically conductive material having spaced-apart convolutions extending along the support member, the strip of conductive material having a width dimension which is large compared to its thickness dimension, the strip of electrically conductive material being in two parts, each part extending from the central portion of the support member to one of the ends thereof.
Claims (1)
1. An antenna element for receiving and transmitting radio frequency energy, comprising: an elongate tubular electrically non-conductive support member of fibrous glass material, the support member having a maximum cross-sectional dimension at the central portion thereof and having smaller cross-sectional dimension from the central portion thereof to each end thereof, an elongate strip of ribbon-like electrically conductive material helically arranged upon the outer surface of the support member, the strip of ribbon-like electrically conductive material having spacedapart convolutions extending along the support member, the strip of conductive material having a width dimension which is large compared to its thickness dimension, the strip of electrically conductive material being in two parts, each part extending from the central portion of the support member to one of the ends thereof.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5257470A | 1970-07-06 | 1970-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3683393A true US3683393A (en) | 1972-08-08 |
Family
ID=21978486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US52574A Expired - Lifetime US3683393A (en) | 1970-07-06 | 1970-07-06 | Helical dipole antenna |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3683393A (en) |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3831399A (en) * | 1973-02-09 | 1974-08-27 | Itt | Drive shaft configuration for a high voltage antenna tuning mechanism |
| US3858220A (en) * | 1973-11-12 | 1974-12-31 | S Arnow | Tunable spiral dipole antenna |
| US4051481A (en) * | 1975-01-29 | 1977-09-27 | Abreu Joao Do Espirito Santo | Helical band antenna |
| US4169267A (en) * | 1978-06-19 | 1979-09-25 | The United States Of America As Represented By The Secretary Of The Air Force | Broadband helical antennas |
| US4872022A (en) * | 1985-03-05 | 1989-10-03 | Schock Edward J | Support and connection means for looped antenna conductors |
| US6078298A (en) * | 1998-10-26 | 2000-06-20 | Terk Technologies Corporation | Di-pole wide bandwidth antenna |
| US20100189709A1 (en) * | 2004-05-28 | 2010-07-29 | Kao Corporation | Elastase inhibitor |
| US20100283709A1 (en) * | 2009-05-08 | 2010-11-11 | Sonoco Development, Inc. | Structure Having An Antenna Incorporated Therein |
| US20140218149A1 (en) * | 2012-04-26 | 2014-08-07 | Lifewave, Inc. | System configuration using a double helix conductor |
| US8884622B2 (en) * | 2012-08-16 | 2014-11-11 | Marius J. Mes | 3D dipole antenna of spiral segments |
| US9463331B2 (en) | 2014-04-07 | 2016-10-11 | Medical Energetics Ltd | Using a double helix conductor to treat neuropathic disorders |
| US9504845B2 (en) | 2012-02-13 | 2016-11-29 | Medical Energetics Ltd. | Health applications of a double helix conductor |
| US9636518B2 (en) | 2013-10-28 | 2017-05-02 | Medical Energetics Ltd. | Nested double helix conductors |
| US20170149126A1 (en) * | 2015-11-19 | 2017-05-25 | Naohiro Itoh | Antenna device |
| US9717926B2 (en) | 2014-03-05 | 2017-08-01 | Medical Energetics Ltd. | Double helix conductor with eight connectors and counter-rotating fields |
| US9724531B2 (en) | 2013-10-28 | 2017-08-08 | Medical Energetics Ltd. | Double helix conductor with light emitting fluids for producing photobiomodulation effects in living organisms |
| US9861830B1 (en) | 2013-12-13 | 2018-01-09 | Medical Energetics Ltd. | Double helix conductor with winding around core |
| US10008319B2 (en) | 2014-04-10 | 2018-06-26 | Medical Energetics Ltd. | Double helix conductor with counter-rotating fields |
| US10083786B2 (en) | 2015-02-20 | 2018-09-25 | Medical Energetics Ltd. | Dual double helix conductors with light sources |
| US10130044B1 (en) | 2012-01-27 | 2018-11-20 | Medical Energetics Ltd. | Agricultural applications of a double helix conductor |
| US10155925B2 (en) | 2015-09-01 | 2018-12-18 | Medical Energetics Ltd. | Rotating dual double helix conductors |
| US10224136B2 (en) | 2015-06-09 | 2019-03-05 | Medical Energetics Ltd. | Dual double helix conductors used in agriculture |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2613319A (en) * | 1950-03-18 | 1952-10-07 | Westinghouse Electric Corp | Adjustable antenna |
| US2682608A (en) * | 1950-03-16 | 1954-06-29 | Rca Corp | Indoor television antenna |
| US2763003A (en) * | 1953-07-01 | 1956-09-11 | Edward F Harris | Helical antenna construction |
| DE1056679B (en) * | 1958-02-13 | 1959-05-06 | Telefunken Gmbh | Antenna arrangement |
| US2938210A (en) * | 1957-09-30 | 1960-05-24 | Edward F Harris | Process of fabricating a whip antenna |
| US2952850A (en) * | 1956-08-18 | 1960-09-13 | Siemens Ag | Directional helical antenna |
| US3192529A (en) * | 1961-03-20 | 1965-06-29 | Ryan Aeronautical Co | Multi-helix antenna on inflatable satellite |
| US3523251A (en) * | 1967-02-27 | 1970-08-04 | William S Halstead | Antenna structure with an integrated amplifier responsive to signals of varied polarization |
-
1970
- 1970-07-06 US US52574A patent/US3683393A/en not_active Expired - Lifetime
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2682608A (en) * | 1950-03-16 | 1954-06-29 | Rca Corp | Indoor television antenna |
| US2613319A (en) * | 1950-03-18 | 1952-10-07 | Westinghouse Electric Corp | Adjustable antenna |
| US2763003A (en) * | 1953-07-01 | 1956-09-11 | Edward F Harris | Helical antenna construction |
| US2952850A (en) * | 1956-08-18 | 1960-09-13 | Siemens Ag | Directional helical antenna |
| US2938210A (en) * | 1957-09-30 | 1960-05-24 | Edward F Harris | Process of fabricating a whip antenna |
| DE1056679B (en) * | 1958-02-13 | 1959-05-06 | Telefunken Gmbh | Antenna arrangement |
| US3192529A (en) * | 1961-03-20 | 1965-06-29 | Ryan Aeronautical Co | Multi-helix antenna on inflatable satellite |
| US3523251A (en) * | 1967-02-27 | 1970-08-04 | William S Halstead | Antenna structure with an integrated amplifier responsive to signals of varied polarization |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3831399A (en) * | 1973-02-09 | 1974-08-27 | Itt | Drive shaft configuration for a high voltage antenna tuning mechanism |
| US3858220A (en) * | 1973-11-12 | 1974-12-31 | S Arnow | Tunable spiral dipole antenna |
| US4051481A (en) * | 1975-01-29 | 1977-09-27 | Abreu Joao Do Espirito Santo | Helical band antenna |
| US4169267A (en) * | 1978-06-19 | 1979-09-25 | The United States Of America As Represented By The Secretary Of The Air Force | Broadband helical antennas |
| US4872022A (en) * | 1985-03-05 | 1989-10-03 | Schock Edward J | Support and connection means for looped antenna conductors |
| US6078298A (en) * | 1998-10-26 | 2000-06-20 | Terk Technologies Corporation | Di-pole wide bandwidth antenna |
| US20100189709A1 (en) * | 2004-05-28 | 2010-07-29 | Kao Corporation | Elastase inhibitor |
| US20100283709A1 (en) * | 2009-05-08 | 2010-11-11 | Sonoco Development, Inc. | Structure Having An Antenna Incorporated Therein |
| US8228260B2 (en) * | 2009-05-08 | 2012-07-24 | Sonoco Development, Inc. | Structure having an antenna incorporated therein |
| US10130044B1 (en) | 2012-01-27 | 2018-11-20 | Medical Energetics Ltd. | Agricultural applications of a double helix conductor |
| US10532218B2 (en) | 2012-02-13 | 2020-01-14 | Medical Energetics Ltd. | Health applications of a double helix conductor |
| US9504845B2 (en) | 2012-02-13 | 2016-11-29 | Medical Energetics Ltd. | Health applications of a double helix conductor |
| US20140218149A1 (en) * | 2012-04-26 | 2014-08-07 | Lifewave, Inc. | System configuration using a double helix conductor |
| US9406421B2 (en) * | 2012-04-26 | 2016-08-02 | Medical Energetics Ltd | System configuration using a double helix conductor |
| US8884622B2 (en) * | 2012-08-16 | 2014-11-11 | Marius J. Mes | 3D dipole antenna of spiral segments |
| US9636518B2 (en) | 2013-10-28 | 2017-05-02 | Medical Energetics Ltd. | Nested double helix conductors |
| US9724531B2 (en) | 2013-10-28 | 2017-08-08 | Medical Energetics Ltd. | Double helix conductor with light emitting fluids for producing photobiomodulation effects in living organisms |
| US9861830B1 (en) | 2013-12-13 | 2018-01-09 | Medical Energetics Ltd. | Double helix conductor with winding around core |
| US10688309B2 (en) | 2013-12-13 | 2020-06-23 | Medical Energetics Limited | Double helix conductor with winding around core |
| US9717926B2 (en) | 2014-03-05 | 2017-08-01 | Medical Energetics Ltd. | Double helix conductor with eight connectors and counter-rotating fields |
| US9463331B2 (en) | 2014-04-07 | 2016-10-11 | Medical Energetics Ltd | Using a double helix conductor to treat neuropathic disorders |
| US10008319B2 (en) | 2014-04-10 | 2018-06-26 | Medical Energetics Ltd. | Double helix conductor with counter-rotating fields |
| US10497508B2 (en) | 2014-04-10 | 2019-12-03 | Medical Energetics Limited | Double helix conductor with counter rotating fields |
| US10083786B2 (en) | 2015-02-20 | 2018-09-25 | Medical Energetics Ltd. | Dual double helix conductors with light sources |
| US10102955B2 (en) | 2015-02-20 | 2018-10-16 | Medical Energetics Ltd. | Dual double helix conductors |
| US10224136B2 (en) | 2015-06-09 | 2019-03-05 | Medical Energetics Ltd. | Dual double helix conductors used in agriculture |
| US10155925B2 (en) | 2015-09-01 | 2018-12-18 | Medical Energetics Ltd. | Rotating dual double helix conductors |
| US20170149126A1 (en) * | 2015-11-19 | 2017-05-25 | Naohiro Itoh | Antenna device |
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