GB263753A - Directive projecting and receiving system for use in wireless telegraphy or telephony - Google Patents

Directive projecting and receiving system for use in wireless telegraphy or telephony

Info

Publication number
GB263753A
GB263753A GB27321/26A GB2732126A GB263753A GB 263753 A GB263753 A GB 263753A GB 27321/26 A GB27321/26 A GB 27321/26A GB 2732126 A GB2732126 A GB 2732126A GB 263753 A GB263753 A GB 263753A
Authority
GB
United Kingdom
Prior art keywords
wavelength
aerial
main
telephony
receiving system
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
Application number
GB27321/26A
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
Publication of GB263753A publication Critical patent/GB263753A/en
Expired legal-status Critical Current

Links

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
    • 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

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

263,753. Yagi, H. Dec. 29, 1925, [Convention date]. Directive signalling. - A directional aerial system comprises a main aerial 1 in combination with insulated reftectors 2 - - 4 situated on a line with or to the rear of the main aerial, and insulated director aerials 5 - - 5<111> situated along the line of the radiated energy. The reflectors are tuned to a wavelength equal to or longer than the radiated wavelength, whilst the " directors " are tuned to a shorter wavelength. In Fig. 2 the reflector 2 is located one quarter wavelength behind the main-aerial 1, the reflectors 3, 3<1> are half a wavelength on each side of the main aerial, and the directors are spaced apart by a distance more than one quarter wavelength. The conductors 4, 4<1> are mainly operative in shielding the main aerial from undesired signals arriving from other directions.
GB27321/26A 1925-12-29 1926-11-01 Directive projecting and receiving system for use in wireless telegraphy or telephony Expired GB263753A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP263753X 1925-12-29

Publications (1)

Publication Number Publication Date
GB263753A true GB263753A (en) 1927-06-30

Family

ID=12191748

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27321/26A Expired GB263753A (en) 1925-12-29 1926-11-01 Directive projecting and receiving system for use in wireless telegraphy or telephony

Country Status (4)

Country Link
US (1) US1745342A (en)
DE (1) DE475293C (en)
FR (1) FR619932A (en)
GB (1) GB263753A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012112218A1 (en) * 2012-12-13 2014-07-10 Endress + Hauser Gmbh + Co. Kg level meter

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE754559C (en) * 1934-04-14 1953-08-31 Julius Pintsch K G Arrangement for directional transmission or reception of ultra-high frequency electromagnetic oscillations
DE767399C (en) * 1937-12-18 1952-07-31 Lorenz A G C Method for creating a vertical control plane
US2552162A (en) * 1941-11-26 1951-05-08 Gen Electric Cable terminating device
US2417808A (en) * 1942-06-30 1947-03-25 Rca Corp Antenna system
BE469845A (en) * 1945-03-02
US2759182A (en) * 1945-03-24 1956-08-14 Bell Telephone Labor Inc Directive antenna systems
US2473421A (en) * 1945-05-30 1949-06-14 Fubini Eugene Search antenna array
US2627028A (en) * 1945-07-03 1953-01-27 Welville B Nowak Antenna system
US2604595A (en) * 1945-09-25 1952-07-22 Standard Telephones Cables Ltd Antenna reflector
US2605419A (en) * 1945-10-11 1952-07-29 Lester C Van Atta Wave guide feed for illuminating parabolic reflectors
US2745102A (en) * 1945-12-14 1956-05-08 Norgorden Oscar Antenna
US2605411A (en) * 1946-04-11 1952-07-29 Henry J Riblet Directional slot antenna
US2551171A (en) * 1946-05-31 1951-05-01 Rca Corp Antenna system
US2538035A (en) * 1948-04-03 1951-01-16 Int Standard Electric Corp Absorbing screen for directive radiation
US2576748A (en) * 1948-05-15 1951-11-27 Gershom N Carmichael Antenna structure
USRE23960E (en) * 1950-05-12 1955-03-08 lorusso
US2719919A (en) * 1950-06-17 1955-10-04 Stromberg Carlson Co Built-in antenna system
US2841792A (en) * 1951-12-29 1958-07-01 Bell Telephone Labor Inc Directional array employing laminated conductor
US2700105A (en) * 1954-07-26 1955-01-18 Winegard Co Tv antenna array
US2941204A (en) * 1955-06-16 1960-06-14 Arnold B Bailey Antenna mount
US3159839A (en) * 1955-07-07 1964-12-01 Donald L Hings Driven dipole coupled to a colinear array spaced with respect to the first fresnel zone
US3218645A (en) * 1958-03-06 1965-11-16 Hermann W Ehrenspeck Endfire array having vertically and horizontally spaced parasitic arrays
DE3046987C2 (en) * 1980-12-12 1985-10-10 Kathrein-Werke Kg, 8200 Rosenheim Yagi antenna
US4860020A (en) * 1987-04-30 1989-08-22 The Aerospace Corporation Compact, wideband antenna system
US6606074B1 (en) 2002-04-03 2003-08-12 The United States Of America As Represented By The Secretary Of The Air Force Dual band satellite communications antenna system with circular polarzation
EP4318806A1 (en) 2022-08-01 2024-02-07 Sick Ag Modular antenna for an rfid reader

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012112218A1 (en) * 2012-12-13 2014-07-10 Endress + Hauser Gmbh + Co. Kg level meter

Also Published As

Publication number Publication date
FR619932A (en) 1927-04-12
DE475293C (en) 1929-04-25
US1745342A (en) 1930-01-28

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