US2505098A - Aerial system - Google Patents

Aerial system Download PDF

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Publication number
US2505098A
US2505098A US746075A US74607547A US2505098A US 2505098 A US2505098 A US 2505098A US 746075 A US746075 A US 746075A US 74607547 A US74607547 A US 74607547A US 2505098 A US2505098 A US 2505098A
Authority
US
United States
Prior art keywords
aerial
length
dipole
define
radiator
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
US746075A
Other languages
English (en)
Inventor
Cornelius Peter Hans K Gabriel
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.)
Hartford National Bank and Trust Co
Original Assignee
Hartford National Bank and Trust 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
Application filed by Hartford National Bank and Trust Co filed Critical Hartford National Bank and Trust Co
Application granted granted Critical
Publication of US2505098A publication Critical patent/US2505098A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas

Definitions

  • the invention has-:fon-its object.- .toaprovide. as Simple;- cheap andeha-ndy 1;construction"of th known aerial system which does not exhibit the abovermentionedtdisadvantages;:1:
  • the aerial system is constituted by a memb'er whichiliais the shape of a single elongated.rod-,.-. plate”: or tubeaand in? which one or more slits are provided which; extend in the longitudinal direction.
  • The. aerial system may also be built-up ofgtwor 40 ieederrV-z tubes'of U shaped"cross-sectionwhose open sides are turned towards one another, or again of a tube of U-shaped cross-section and a plate located in front of the open side of this tube, the spacing between the two tubes or between the tube and the plate being small with respect to the tube length.
  • aerial Figs. 3 and 3a show the construction of a systems having an adaptation resistance which 0 folded dipole constituted by two U-shaped bars exhibits a plurality of difierent values.
  • U1 and U2 the open sides of which are turned By providing the slits in such manner that they towards one another.
  • AL and ED extend more or less far towards the ends, it is the bars are united, for example by welding. possible to obtain at these ends a short-circuit of Figs. 4 and 4a repres'ent .
  • this resistance. .mayi be decreased or increased -by... making the. fed; radiator thicker or thinner re-..
  • Fig..2. now represents an aerial. system;acc0rd:-.-;--: ing.,tor-theainventioni
  • Thisaerial consists ofa metaltubeexhibiting :on: either side slits extending in the longitudinal direction of the.
  • tuber-so 35 thattwo.radiatorsaABs and CD 'are'formed'whichua are spaced fromzone another-by adistancewhieh; is small .relativelycto the length; ofxai radiators; Oneqofithe radiators thusdonned:(cDbisainter ruptedz: in order; to permit zof COIIIIBOtlHgi'IthaT
  • a chord 's'ee'Figl' 2bl instead "of onr a diameter (see Fig. 2117 it is 1 ranged in front of the open side of this bar.
  • the spacing between the U-shaped bars in Fig. 3 and that between the U-shaped bar and the plate in Fig. 4 are small with respect to the length of the bar.
  • the bars U1 and U2 may be obtained, for example, by bending plates.
  • aerial systems may, be closed at the ends by means of plates.
  • the aerial systems according to the invention exhibit the shape of a single dipole, can be Y mounted like a single dipole, are of light construction, have an aesthetical appearance and exhibit only a slight air resistance:
  • a high-frequency aerial structure comprising a tubular conductive member having a length corresponding substantially to half a wave-length of the operating frequency and provided with a longitudinal slit passing completely through said member and extending from a point adjacent one end of said member to a point adjacent the other end thereof to define two parallel conductors whose corresponding ends are interconnected, one of said conductors being provided with a transverse slit at the midpoint thereof to define the two separate elements of a dipole, and feeder terminals on adjacent ends of said two elements.
  • a high-frequency aerial structure comprising a hollow conductive member of circular cross section having a length corresponding substantially to half a wavelength of the operating frequency and provided with a longitudinal slit passing through a diametrical plane in the member and extending from a point adjacent one end of said member to a point adjacent the other end thereof to define two parallel conductors whose corresponding ends are interconnected, one of said conductors being provided with a transverse slit at the midpoint thereof to define the two separate elements of a dipole, and feeder terminals on adjacent ends of said two elements.
  • a high-frequency aerial structure comprising a hollow conductive member of circular cross section having a length corresponding substantially to half a wavelength of the operating frequency and provided with a longitudinal slit passing through a chordal plane in-the member and extending from a point adjacent one end of said member to a point adjacent the other end thereof to define two parallel conductors whose corresponding ends are interconnected, one of said conductors being provided with a transverse slit at the midpoint thereof to define the two separate-elements-of a dipole, and feeder terminals I on adjacent ends of said two terminals.
  • a high-frequency aerial structure comprising a hollow conductive member of rectangular cross section having a length corresponding substantially to half a wavelength of the operating frequency and provided with a longitudinal slit passing through opposing walls of the member .and extending from a point adjacent one end of said member to a point adjacent the other end thereof, said slit being positioned to define two parallel U-shaped conductors whose corresponding ends are interconnected, one of said U-shaped conductors being provided with a transverse slit at the midpoint thereof to define the two separate elements of a dipole, and feeder terminals on adjacent ends of said two elements.
  • a high-frequency aerial structure comprising a hollow conductive member of rectangular cross section having a length corresponding to half a wavelength of theoperating frequency and provided with a longitudinal slit passing through opposing walls of the member and extending from a point adjacent one end of said member to a point adjacent the other end, said slit being positioned to define a U-shaped conductor disposed in parallelrelation with a planar conductor, the corresponding ends of the conductors being interconnected, the planar conductor being provided with a transverse slit at the midpoint thereof to define the two separate elements of a dipole, and feeder terminals on adjacent ends of said two elements.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)
  • Details Of Aerials (AREA)
US746075A 1946-05-21 1947-05-05 Aerial system Expired - Lifetime US2505098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL637113X 1946-05-21

Publications (1)

Publication Number Publication Date
US2505098A true US2505098A (en) 1950-04-25

Family

ID=19788902

Family Applications (1)

Application Number Title Priority Date Filing Date
US746075A Expired - Lifetime US2505098A (en) 1946-05-21 1947-05-05 Aerial system

Country Status (6)

Country Link
US (1) US2505098A (xx)
BE (1) BE473382A (xx)
DE (1) DE807099C (xx)
FR (1) FR946919A (xx)
GB (1) GB637113A (xx)
NL (1) NL62208C (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2943326A (en) * 1955-02-16 1960-06-28 Arthur C Thayer Television antennas
US3143737A (en) * 1962-08-03 1964-08-04 Virginia T Norwood Folded sigma-shaped dipole antenna
US11848492B2 (en) * 2015-12-10 2023-12-19 Rfs Technologies, Inc. Low band dipole and multi-band multi-port antenna arrangement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE604353C (xx) *
US2153181A (en) * 1937-01-13 1939-04-04 Telefunken Gmbh Ultra short wave circuit
US2241119A (en) * 1936-09-15 1941-05-06 Pintsch Julius Kg Ultra-short-wave apparatus
US2283914A (en) * 1937-07-24 1942-05-26 Rca Corp Antenna
US2369556A (en) * 1941-03-28 1945-02-13 Gamet Pierre Paul Band antenna

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE604353C (xx) *
US2241119A (en) * 1936-09-15 1941-05-06 Pintsch Julius Kg Ultra-short-wave apparatus
US2153181A (en) * 1937-01-13 1939-04-04 Telefunken Gmbh Ultra short wave circuit
US2283914A (en) * 1937-07-24 1942-05-26 Rca Corp Antenna
US2369556A (en) * 1941-03-28 1945-02-13 Gamet Pierre Paul Band antenna

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2943326A (en) * 1955-02-16 1960-06-28 Arthur C Thayer Television antennas
US3143737A (en) * 1962-08-03 1964-08-04 Virginia T Norwood Folded sigma-shaped dipole antenna
US11848492B2 (en) * 2015-12-10 2023-12-19 Rfs Technologies, Inc. Low band dipole and multi-band multi-port antenna arrangement

Also Published As

Publication number Publication date
NL62208C (xx)
DE807099C (de) 1951-06-25
FR946919A (fr) 1949-06-17
GB637113A (en) 1950-05-10
BE473382A (xx)

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