US3490026A - Dipole antenna with u-shaped directors - Google Patents

Dipole antenna with u-shaped directors Download PDF

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Publication number
US3490026A
US3490026A US599777A US3490026DA US3490026A US 3490026 A US3490026 A US 3490026A US 599777 A US599777 A US 599777A US 3490026D A US3490026D A US 3490026DA US 3490026 A US3490026 A US 3490026A
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US
United States
Prior art keywords
dipole
wave
wave guides
passive
antenna
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
US599777A
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English (en)
Inventor
Rudolf Kolbe
Siegfried Schmidt
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.)
Fuba Hans Kolbe and Co
Original Assignee
Fuba Hans Kolbe and Co
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
Priority claimed from DEF29841U external-priority patent/DE1949264U/de
Application filed by Fuba Hans Kolbe and Co filed Critical Fuba Hans Kolbe and Co
Application granted granted Critical
Publication of US3490026A publication Critical patent/US3490026A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H01Q19/30—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 the primary active element being centre-fed and substantially straight, e.g. Yagi antenna

Definitions

  • the present invention relates to an antenna arrangement having an active dipole element operating in conjunction with passive dipole elements situated within the radiation path.
  • Antenna arrangements of this species are especially applicable to television apparatus and ultrahigh frequency transmission.
  • An important goal of these antenna arrangements is that they be designed so that their efiective regions be extended as widely as possible. This has been accomplished, heretofore, by mounting a plurality of complete Yagi antennas so that they are located next to each other and/or under each other. These antennas were then electrically connected and controlled together.
  • Such an antenna arrangement involving a plurality of antennas, incurs considerable expense with respect to materials and equipment.
  • These arrangements also posses the inherent problem that the maximum extension of the effective antenna region, is realized when the individual Yagi antennas are separated from each other by a relatively large distance.
  • an object of the present invention to provide an antenna arrangement designed to have a maximum effective region without resorting to the inclusion of a plurality of individual antennas.
  • Another object of the present invention is to provide an antenna arrangement, of the character described, whereby the maximum effective region corresponds to that obtainable with a plurality of Yagi antennas situated in an optimum manner with respect to each other.
  • Yet another object of the present invention is to provide "ice an antenna arrangement, as set forth, having an active dipole element operating in conjunction with passive dipole elements in the form of wave guides.
  • a further object of the present invention is to provide an antenna arrangement, as described, whereby the aforementioned results are achieved with a minimum amount of equipment.
  • a still further object of the present invention is to provide an antenna arrangement, as set forth, which operates reliably and may be maintained economically.
  • the present invention includes an energized active dipole element having two halves each associated with a plurality of wave guides corresponding to an active half-wave dipole.
  • the wave guides associated with each half of the active dipole element are separately situated and electrically isolated from the wave guides in the other half section.
  • Such an antenna arrangement exhibits only a single energized dipole.
  • the present invention does not provide for one or more rows of wave guides stemming from the middle of the dipole. Instead, the present invention provides for one or more of such rows with respect to each half of the dipole, whereby the wave guides possess that length that they would have if they served in conjunction with a half-wave dipole.
  • the present invention achieved considerable increase in its effective region, in a practical manner, without the addition of considerable equipment and electrical connecting ele ments.
  • the design associated with the present invention is considerably simpler, in almost every respect, when compared to the arrangement applying a plurality of complete individual antenna elements.
  • a further increase in the effective region of the antenna arrangement, according to the present invention, is achieved with the design whereby the wave guide associated with each half of the active dipole element, reside in two oppositely situated planes.
  • the wave guides associated with each half of the active dipole element are in the form of conductive elements.
  • the latter are constructed in the form of U-shaped wires or conductors which are supported, at their bases, by a cross member made of insulating material. These cross members are, in turn, secured to a supporting rod. Only one such supporting rod is required for the entire arrangement, and the latter is especially applicable to high frequencies when the wave guides are formed from wire.
  • FIG. 1 is an isometric view showing the antenna construction and the relationship of the wave guides with respect to the full wave dipole;
  • FIG. 2 is an enlarged isometric view, and shows the manner in which two wave guides are secured to a cross member which is, in turn, mounted on a supporting rod shown in FIG. 1.
  • the antenna is essentially in the form of an energized full-wave dipole. Both halves of the latter are extended through conductive surfaces, for purposes of impedance matching.
  • the full-wave dipole 1 is an active dipole element of the antenna, and is secured to a mounting rod 2.
  • a reflector 3 in the form of a wire mesh screen, or grid, is also secured to this mounting rod 2, so that it intercepts substantially the main radiation.
  • each half of the full-Wave dipole 1 is associated with one of two rows of wave guides situated in opposite planes.
  • One row of these wave guides is designated by A, while the other row is designated as B.
  • Each wave guide in each of the two rows A and B is constructed as an active dipole element in the form of a half-wave dipole.
  • each wave guide becomes a half-wave dipole corresponding to the wave guides of a Yagi antenna.
  • Each wave guide within the rows A and B is mounted upon the rod 2, so that it is separately situated and electrically isolated.
  • the individual wave guides in each row A and B comprises substantially a U-shaped conducting wire 4 and 5, respectively.
  • Adjacent conductive wire elements 4 and 5 associated with rows A and B, respectively are held and supported by the cross-member 6.
  • the latter is made of non-conductive material and thus isolates the elements 4 and 5 from each other.
  • the cross-member v6, is, in turn, supported upon the mounting rod 2.
  • the formed wire elements 4 and 5 may :be secured to the cross member 6 by any one of the commonly known joining techniques. It is an essential condition of the arrangement that the individual wave guides be in the form of active dipole elements corresponding to wave guides of a half-wave dipole and that each row of wave guides corresponds to one-half of the full wave dipole l.
  • a passive dipole element in the form of a parasitic radiator 7 is mounted upon the supporting rod 2, be tween the full wave dipole 1 and the first pair of wave guide elements 4 and 5.
  • the radiator 7 is electrically connected to the supporting rod 2, in a manner, similar to the prevailing in the usual types of wave guide arrangements.
  • the radiator 7 serves the purpose of compensating for the frequency dependent oscillations at the base of the antenna arrangement.
  • an active dipole element having two spaced dipole halves; two sets of passive wave guides, each of said sets composed of a plurality of passive wave guides located in series in front of one of said dipole halves spaced from each other and from the respective dipole halves, the passive wave guides of one of said sets being electrically insulated at least from the passive wave guides from the other of said sets, said passive radiation elements being each made of conductive material, and each being U-shaped; at least one insulating member for retaining each of said passive radiation elements; supporting means for supporting said insulating member, said insulating member being secured to said supporting means and insulating electrically said passive wave guides from said supporting means, said U-shaped passive wave guides being secured to said insulating member at the base of said U shape, said active dipole element being a full wavelength at the operating frequency.
  • an active dipole element having two spaced dipole halves; two sets of passive wave guides, each of said sets composed of a plurality of passive wave guides located in series in front of one of said dipole halves spaced from each other and from the respective dipole halves, the passive wave guides of one of said sets being electrically insulated at least from the passive wave guides from the other of said sets, said passive wave guides being U-shaped; at least one insulating member for retaining each of said passive wave guides; supporting means for supporting said insulating member, said insulating member being secured to said supporting means and insulating electrically said passive wave guides from said sup porting means, said U-shaped passive wave guides being secured to said insulating member at the base of said U shape so that the bases of said U shape of said two sets of wave guides lie oppositely on said insulating member with the open parts of the U facing in opposite directions.
  • An antenna ararngement as defined in claim 2 including radiating means secured to said supporting means and interposed between said active dipole and said passive. wave guide for compensating against frequency dependent oscillations.
US599777A 1965-12-10 1966-12-07 Dipole antenna with u-shaped directors Expired - Lifetime US3490026A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEF47889A DE1285025B (de) 1965-12-10 1965-12-10 Dipolantenne
DEF29841U DE1949264U (de) 1966-03-25 1966-03-25 Antennenanordnung.

Publications (1)

Publication Number Publication Date
US3490026A true US3490026A (en) 1970-01-13

Family

ID=25974476

Family Applications (1)

Application Number Title Priority Date Filing Date
US599777A Expired - Lifetime US3490026A (en) 1965-12-10 1966-12-07 Dipole antenna with u-shaped directors

Country Status (10)

Country Link
US (1) US3490026A (de)
AT (1) AT269223B (de)
BE (1) BE688857A (de)
CH (1) CH474874A (de)
DE (1) DE1285025B (de)
DK (1) DK114709B (de)
ES (1) ES329047A1 (de)
FR (1) FR1503342A (de)
GB (1) GB1144451A (de)
NL (1) NL6614544A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010475A (en) * 1974-06-12 1977-03-01 The Plessey Company Limited Antenna array encased in dielectric to reduce size
US20040263410A1 (en) * 2001-03-20 2004-12-30 Allen Telecom Group, Inc. Antenna array
US20050001778A1 (en) * 2003-07-03 2005-01-06 Kevin Le Wideband dual polarized base station antenna offering optimized horizontal beam radiation patterns and variable vertical beam tilt
US20050179610A1 (en) * 2002-12-13 2005-08-18 Kevin Le Directed dipole antenna

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2041758B1 (de) * 1969-05-23 1973-12-21 Portenseigne Ets Marcel
US3935576A (en) * 1974-06-03 1976-01-27 E-Systems, Inc. Broadband beacon antenna system
WO1988002189A1 (en) * 1986-09-19 1988-03-24 Észak-Budai Munkás Általános Fogyasztási És Értéke Passive resonant halfwave antenna element for antennas operating in the vhf or uhf band and an antenna using these elements
US6125813A (en) * 1997-06-09 2000-10-03 Patrick Power Products, Inc. Prechamber combustion for a rotary diesel engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3092835A (en) * 1960-10-04 1963-06-04 Technical Appliance Corp Multi-band resonant v antenna
US3277491A (en) * 1963-10-11 1966-10-04 Channel Master Corp Multiband television antenna with multiband parasites
US3396399A (en) * 1965-03-24 1968-08-06 Winegard Co Ultra-high frequency fishbone type television antenna

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622197A (en) * 1950-09-14 1952-12-16 Eric W Cruser Two-fold antenna
US3218645A (en) * 1958-03-06 1965-11-16 Hermann W Ehrenspeck Endfire array having vertically and horizontally spaced parasitic arrays
DE1897040U (de) * 1962-02-16 1964-07-23 Anton Kathrein Alteste Spezial Antennenanordnung mit mehreren direktorenreihen.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3092835A (en) * 1960-10-04 1963-06-04 Technical Appliance Corp Multi-band resonant v antenna
US3277491A (en) * 1963-10-11 1966-10-04 Channel Master Corp Multiband television antenna with multiband parasites
US3396399A (en) * 1965-03-24 1968-08-06 Winegard Co Ultra-high frequency fishbone type television antenna

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010475A (en) * 1974-06-12 1977-03-01 The Plessey Company Limited Antenna array encased in dielectric to reduce size
US20040263410A1 (en) * 2001-03-20 2004-12-30 Allen Telecom Group, Inc. Antenna array
US7075497B2 (en) 2001-03-20 2006-07-11 Andrew Corporation Antenna array
US20050179610A1 (en) * 2002-12-13 2005-08-18 Kevin Le Directed dipole antenna
US7358922B2 (en) 2002-12-13 2008-04-15 Commscope, Inc. Of North Carolina Directed dipole antenna
US20050001778A1 (en) * 2003-07-03 2005-01-06 Kevin Le Wideband dual polarized base station antenna offering optimized horizontal beam radiation patterns and variable vertical beam tilt
US6924776B2 (en) 2003-07-03 2005-08-02 Andrew Corporation Wideband dual polarized base station antenna offering optimized horizontal beam radiation patterns and variable vertical beam tilt

Also Published As

Publication number Publication date
DK114709B (da) 1969-07-28
DE1285025B (de) 1968-12-12
ES329047A1 (es) 1967-05-01
CH474874A (de) 1969-06-30
GB1144451A (en) 1969-03-05
FR1503342A (fr) 1967-11-24
AT269223B (de) 1969-03-10
NL6614544A (de) 1966-12-27
BE688857A (de) 1967-03-31

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