US3562754A - Television antenna having v-shaped dipoles with arcuate parasitic elements - Google Patents

Television antenna having v-shaped dipoles with arcuate parasitic elements Download PDF

Info

Publication number
US3562754A
US3562754A US822228A US3562754DA US3562754A US 3562754 A US3562754 A US 3562754A US 822228 A US822228 A US 822228A US 3562754D A US3562754D A US 3562754DA US 3562754 A US3562754 A US 3562754A
Authority
US
United States
Prior art keywords
elements
tube means
parallel
antenna
active
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
Application number
US822228A
Other languages
English (en)
Inventor
Placido Gomez
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3562754A publication Critical patent/US3562754A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/28—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements
    • 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
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength

Definitions

  • the invention relates to a television antenna and more particularly to a universal non directive antenna having an efiiciency and a power greater than those commonly used at present.
  • the antenna according to the invention essentially comprises at least two parallel tubes lying in distinct horizontal planes spaced apart by a distance that is comparatively short against the length of said tubes, said tu'bes having a curved central portion and two end portions that are comparatively short against the length of the said central portion, said tubes serving as parasitic elements, and at least two active element pairs lying in a horizontal plane intermediate between the said horizontal planes of the parallel tubes, said active elements converging towards a point lying on a line parallel to the horizontal symmetry axis of said parallel tubes, the ends of said active elements adjacent to the said converging point beging connected to the antenna cable.
  • the elements of the said active element pairs except one are in alignment along directions that lie at an acute angle to the direction of said horizontal symmetry axis of said parallel tubes.
  • the curved central portion of the horizontal parallel tubes has the shape of a circular arc; the length of the end portions is substantially equal to one-eighth of the total length of said parallel tubes.
  • FIG. 1 is a perspective view of a first embodiment of the antenna according to the invention
  • FIG. 2 is a plan view of the embodiment of FIG. 1;
  • FIG. 3 is a plan view of another embodiment of the antenna according to the invention.
  • the active elements are converging towards a point lying on a line parallel to the horizontal symmetry axis 8 of tubes 1 and 2.
  • the convergence point is situated adjacent to the chord subtending the are which is the projection, in the active elements plane, of the curved central portion 3, inside the segment bounded "by said are and said chord.
  • the elements 5a and 6a, on the one hand, and the elements 5b and 6b, on the other hand, are electrically interconnected at 9a and 9b.
  • the second ends of the elements 5a and 6b are electrically coupled to the tubes 1 and 2 at points 10a and 10b which are arranged symmetrically relative to the projection, in the said intermediate horizontal plane, of the symmetry axis 8 of tubes 1 and 2 whereas the second ends of elements 6a and 6b are free.
  • the elements 6a and 6b are in alignment along a direction that lies at an acute angle to the direction of axis 8.
  • the antenna cable is connected to the ends 9a and 9b adjacent to the said convergence point of the active elements.
  • the antenna described above may be fixed to a mast at 11.
  • the antenna according to the invention captures the waves from any horizontal direction with an efliciency and a power which are much greater than those of the commonly used television receiving antennae having a plurality of elements.
  • the invention is non directive and is able to capture any television channel, that is waves of any frequency.
  • a single such antenna permits to have all the channels captured which are available at a partciular location.
  • the specific embodiment described is merely illustrative of the present invention.
  • the antenna may be provided with a greater number of elements and particularly with a greater number of active element pairs.
  • FIG. 3 illustrates by way of example another embodiment of the antenna according to the invention which only differs from the first embodiment described in that it comprises three active element pairs.
  • the elements 7a and 7b of the additional pair are also in alignment and the pairs 6a, 6b and 7a, 7b lie symmetrically relative to the center line 8.
  • the antenna power and gain are in this way still greater. From the constructional point of view, the antenna according to the invention can be very easily mounted anywhere.
  • a television antenna comprising at least two parallel tube means lying in distinct horizontal planes spaced apart by a distance that is comparatively short with respect to the length of said tube means, said tube means having a curved central portion and two end portions that are com paratively short with respect to the length of the said central portion, said tube means serving as parasitic elements, and at least two active element pairs lying in a horizontal plane intermediate between the said horizontal planes of said parallel tube means, said active elements converging towards a point lying on a line parallel to the horizontal symmetry axis of said parallel tube means, the elements of a first of said active element pairs having one end thereof electrically connected at two points that are coupled to said parallel tube means and that are arranged symmetrically relative to the said line parallel to said horizontal symmetry axis of said parallel tube means, the second end of each element of said first active element pair being electrically connected to one end of one element of each of the other of said active element pairs, the second ends of the elements of said other active element pairs being free, the elements pertaining to each of said other active element pairs
  • the television antenna of claim 1 wherein there is provided three active element pairs, the elements of two of said active element pairs having their ends opposite to said convergence point, free, and the elements of said two pairs being in alignment by, twos along directions that lie symmetrically relative to said horizontal symmetry axis of said parallel tube means.

Landscapes

  • Details Of Aerials (AREA)
  • Aerials With Secondary Devices (AREA)
  • Particle Accelerators (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
US822228A 1968-05-09 1969-05-06 Television antenna having v-shaped dipoles with arcuate parasitic elements Expired - Lifetime US3562754A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE714897 1968-05-09
BE732100 1969-04-25

Publications (1)

Publication Number Publication Date
US3562754A true US3562754A (en) 1971-02-09

Family

ID=25656678

Family Applications (1)

Application Number Title Priority Date Filing Date
US822228A Expired - Lifetime US3562754A (en) 1968-05-09 1969-05-06 Television antenna having v-shaped dipoles with arcuate parasitic elements

Country Status (5)

Country Link
US (1) US3562754A (enExample)
DE (1) DE1922988A1 (enExample)
FR (1) FR2040200A7 (enExample)
GB (1) GB1228530A (enExample)
NL (1) NL6907113A (enExample)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2206752A1 (en) 2009-01-09 2010-07-14 Seiko Epson Corporation Ink jet recording method, recorded product, ink composition for ink jet recording, ink set, ink cartridge, and ink jet recording apparatus
EP2226422A1 (en) 2009-02-18 2010-09-08 Seiko Epson Corporation Image-forming method and record
US20110181646A1 (en) * 2010-01-27 2011-07-28 Seiko Epson Corporation Printed matter, method for recording color images, color printed matter, look-up table for use in color image recording, and white ink
US8512827B2 (en) 2010-06-24 2013-08-20 Seiko Epson Corporation Ink jet recording medium
US8617302B2 (en) 2010-10-05 2013-12-31 Seiko Epson Corporation White ink composition
US8919942B2 (en) 2011-02-17 2014-12-30 Seiko Epson Corporation Ink jet recording method, and record made by the same
US9260619B2 (en) 2010-04-27 2016-02-16 Seiko Epson Corporation White ink composition and recorded material using the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2206752A1 (en) 2009-01-09 2010-07-14 Seiko Epson Corporation Ink jet recording method, recorded product, ink composition for ink jet recording, ink set, ink cartridge, and ink jet recording apparatus
EP2226422A1 (en) 2009-02-18 2010-09-08 Seiko Epson Corporation Image-forming method and record
US20110181646A1 (en) * 2010-01-27 2011-07-28 Seiko Epson Corporation Printed matter, method for recording color images, color printed matter, look-up table for use in color image recording, and white ink
US9260619B2 (en) 2010-04-27 2016-02-16 Seiko Epson Corporation White ink composition and recorded material using the same
US8512827B2 (en) 2010-06-24 2013-08-20 Seiko Epson Corporation Ink jet recording medium
US8617302B2 (en) 2010-10-05 2013-12-31 Seiko Epson Corporation White ink composition
US8919942B2 (en) 2011-02-17 2014-12-30 Seiko Epson Corporation Ink jet recording method, and record made by the same

Also Published As

Publication number Publication date
DE1922988A1 (de) 1969-11-20
GB1228530A (enExample) 1971-04-15
NL6907113A (enExample) 1969-11-11
FR2040200A7 (enExample) 1971-01-22

Similar Documents

Publication Publication Date Title
CA2223668C (en) The strengthened quad antenna structure
CN1108643C (zh) 用于便携无线电设备的小型天线
US3562754A (en) Television antenna having v-shaped dipoles with arcuate parasitic elements
CN100461530C (zh) 双极化天线
US4286271A (en) Log-periodic monopole antenna
CN106207495A (zh) 双极化天线及其辐射单元
KR100263208B1 (ko) 휴대 무선 장치용 벌룬 및 튜닝 소자를 가진 안테나 조합체
US3286268A (en) Log periodic antenna with parasitic elements interspersed in log periodic manner
CN109509970A (zh) 双极化天线
CN100570953C (zh) 双极化双波段辐射装置
US3193831A (en) Logarithmic periodic antenna
EP1039575A1 (en) Antenna unit for portable phones
CN109037953B (zh) 一种双极化宽带辐射单元及天线
CA2389791C (en) Multiloop antenna elements
RU172803U1 (ru) Широкополосная направленная антенна с двойной поляризацией
US3531805A (en) High gain all channel television antenna
CN108598699A (zh) 垂直极化全波振子阵列天线以及定向辐射天线
US2643334A (en) Turnstile antenna
US4223317A (en) Dual polarization antenna couplets
CN102142611A (zh) 偶极天线
US20200411966A1 (en) Radiator, antenna and base station
US3273159A (en) Log periodic antenna comprised of parallel fed quad elements
US4155092A (en) Omnidirectional communications antenna
JP2599430B2 (ja) オムニディレクショナルアンテナ
US3150376A (en) Multi-band log periodic antenna