US2153292A - Antenna - Google Patents

Antenna Download PDF

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Publication number
US2153292A
US2153292A US91265A US9126536A US2153292A US 2153292 A US2153292 A US 2153292A US 91265 A US91265 A US 91265A US 9126536 A US9126536 A US 9126536A US 2153292 A US2153292 A US 2153292A
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US
United States
Prior art keywords
antenna
length
wave
fron1
soid
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
US91265A
Inventor
Berndt Walter
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Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Application granted granted Critical
Publication of US2153292A publication Critical patent/US2153292A/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
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
    • H01Q21/205—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path providing an omnidirectional coverage
    • 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
    • H01Q19/32—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 end-fed and elongated
    • 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
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/32—Vertical arrangement of element
    • H01Q9/34—Mast, tower, or like self-supporting or stay-supported antennas

Definitions

  • auxi1iary antennas are of shot length as coInpared With the length of the centTa1 antenno. Thoir distance fron1 the oentral antenna Inust 1ikeviSe be sman- It iS choSen pTeferab1y below so that a diagram vri11 be 0btaihed wh1eh comes s olose as possible to the cosine funotion at large veTtical angles.
  • An antenna sySten1 having, in oonibinotion, a vertico1 radia ting element Whose length iS approxiInately one-half the length of the oo1 nlunication vauve, and n1eanS for eneTgizing said elenlent whereby theTe is produced a tfaveling wave conlponent therein, and IneanS ooITlpriSing another radiating eleInent fo1 produoing a Ta dia,tion field v711ioh iSn1axiInun1 at zero degreeS ond substantiany zeo at 90 With reSpect to the horionta1, v7hioh oonbines dth he radiotion fron1 sajd veTtioo1 Tadiating eienlent to con penSate for the distortion of the vertioa1 radiotion pattern by said traveHng Wave

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Support Of Aerials (AREA)

Description

A ri 4, 1939. BERNDT 2,153,292
ANTENNA Filed July 18, 1936 INVENTOR WALTE ERNDT ATToRNEY II1 the arTangen1ent aooording to the inven tion, the suppression of the space radiation is alTeady provided foT by the high iron IZ1ast. t iS only the inaoouracy in tho zero place in the diagran1, oaused by the in1111enoe of the trave1 ing Waves, that is to be con1pensated foT by the auxniary antennasa I'11e curtentS in tho auxiHary antennas ore, however, Sman os oom pared With the cuTent in the Inast. 'The auxi1iary antennas are of shot length as coInpared With the length of the centTa1 antenno. Thoir distance fron1 the oentral antenna Inust 1ikeviSe be sman- It iS choSen pTeferab1y below so that a diagram vri11 be 0btaihed wh1eh comes s olose as possible to the cosine funotion at large veTtical angles.
vvhat is clainled is:
1. An antenna sySten1 having, in oonibinotion, a vertico1 radia ting element Whose length iS approxiInately one-half the length of the oo1 nlunication vauve, and n1eanS for eneTgizing said elenlent whereby theTe is produced a tfaveling wave conlponent therein, and IneanS ooITlpriSing another radiating eleInent fo1 produoing a Ta dia,tion field v711ioh iSn1axiInun1 at zero degreeS ond substantiany zeo at 90 With reSpect to the horionta1, v7hioh oonbines dth he radiotion fron1 sajd veTtioo1 Tadiating eienlent to con penSate for the distortion of the vertioa1 radiotion pattern by said traveHng Wave ooInponent.
2. An antenna systeIn coIn Tising a oentTa1 aerio1 having a length sobstontially equal to half the 1ength of the ooo1znunication vvave, and al pluroHy of odditiono1 Shorter veTioa1 aerials 1ocatod oroon soid oenTa1 oeria1 on a oiro1e Whose adius is onequarter the length of the oomnlunication Wave, soid oentral aeria1 and ad ditiona1 oeriols being so energized that the ra diotion fTon1 Soid additiona1 aeria1s oon1penSates fo' the eEeot of the troveling Wave oon1ponent on the verioo1 rodiotion patterT1 of said oentra1 ooL 3. '1e meod of o erating an antenna whose Tadiation pattem departs fron1 the calc11lated pat torn a11o to tho e1eots of the tTaveling vvave coInponont therein, Whioh conlprises produoing a ditod wave independently of said antenna of a, pTedetern11ned nlagnitude and phase Where by it cdmbTnoS vh the radiation 1'on1 Said aenn to ooT1penso1e fo1 `111e diStortion of the vertical rodlation pattern by said tralveling vvalve
US91265A 1935-08-19 1936-07-18 Antenna Expired - Lifetime US2153292A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2153292X 1935-08-19

Publications (1)

Publication Number Publication Date
US2153292A true US2153292A (en) 1939-04-04

Family

ID=7987536

Family Applications (1)

Application Number Title Priority Date Filing Date
US91265A Expired - Lifetime US2153292A (en) 1935-08-19 1936-07-18 Antenna

Country Status (2)

Country Link
US (1) US2153292A (en)
FR (1) FR809613A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2713164A (en) * 1945-05-21 1955-07-12 Itt Direction finding system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2713164A (en) * 1945-05-21 1955-07-12 Itt Direction finding system

Also Published As

Publication number Publication date
FR809613A (en) 1937-03-08

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