GB529152A - Improvements in or relating to radio aerial arrangements - Google Patents

Improvements in or relating to radio aerial arrangements

Info

Publication number
GB529152A
GB529152A GB1532939A GB1532939A GB529152A GB 529152 A GB529152 A GB 529152A GB 1532939 A GB1532939 A GB 1532939A GB 1532939 A GB1532939 A GB 1532939A GB 529152 A GB529152 A GB 529152A
Authority
GB
United Kingdom
Prior art keywords
resistances
cone
apex
earthed
base
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
GB1532939A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 to DE529152X priority Critical
Application filed by Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB529152A publication Critical patent/GB529152A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/16Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/30Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/40Element having extended radiating surface

Abstract

529,152. Aerials. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. May 23, 1939, No. 15329. Convention date, May 24, 1938. [Class 40 (v)] In order to compensate for the small variation of impedance with frequency in a conical aerial suitable for wide frequency-band transmission or reception, the base of the aerial K is connected to a space capacity C through the resistances R which are equivalent to the characteristic impedance of the cone ; alternatively the capacity plate C may be within the cone the resistances R being arranged radially, Fig. 3 (not shown). In a modification the base of the cone may be earthed through resistances R, a counterpoise being fitted opposite the apex. The resistances R may be replaced by cylindrical or annular sheets of resistive material. The invention is applicable to two vertical cones arranged apex to apex, a capacity plate being connected to each cone or to the upper one only the lower one being earthed as above.
GB1532939A 1938-05-24 1939-05-23 Improvements in or relating to radio aerial arrangements Expired GB529152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE529152X 1938-05-24

Publications (1)

Publication Number Publication Date
GB529152A true GB529152A (en) 1940-11-14

Family

ID=6553963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1532939A Expired GB529152A (en) 1938-05-24 1939-05-23 Improvements in or relating to radio aerial arrangements

Country Status (3)

Country Link
US (1) US2218741A (en)
FR (1) FR855117A (en)
GB (1) GB529152A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0350364A1 (en) * 1988-07-08 1990-01-10 Thomson-Csf Wideband receiving antenna
FR2650441A1 (en) * 1988-05-16 1991-02-01 Etu Rech Chimiq Lab Radio antenna with very wide band and low standing-wave ratio

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2476949A (en) * 1945-08-02 1949-07-26 Robert J Adams Antenna
US2508438A (en) * 1945-10-16 1950-05-23 Douglas W Wilson Broad band antenna
US2503952A (en) * 1946-03-19 1950-04-11 Rca Corp Traveling wave antenna
US2659002A (en) * 1946-03-29 1953-11-10 Price M Keeler Split truncated cone-antenna
US2659003A (en) * 1946-04-30 1953-11-10 Dorne Arthur Antenna mountable in small spaces
US2726388A (en) * 1951-07-26 1955-12-06 Itt Antenna system combinations and arrays
US2964747A (en) * 1958-07-21 1960-12-13 Radiation Inc Vee antenna
US4509056A (en) * 1982-11-24 1985-04-02 George Ploussios Multi-frequency antenna employing tuned sleeve chokes
US7327318B2 (en) * 2006-02-28 2008-02-05 Mti Wireless Edge, Ltd. Ultra wide band flat antenna

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2650441A1 (en) * 1988-05-16 1991-02-01 Etu Rech Chimiq Lab Radio antenna with very wide band and low standing-wave ratio
EP0492022A1 (en) * 1988-05-16 1992-07-01 Laboratoire D'etudes Et De Recherches Chimiques L.E.R.C. S.A. Wide band radio antenna with weak stationary wave rating
EP0350364A1 (en) * 1988-07-08 1990-01-10 Thomson-Csf Wideband receiving antenna
FR2634068A1 (en) * 1988-07-08 1990-01-12 Thomson Csf Broadband receiving antenna

Also Published As

Publication number Publication date
US2218741A (en) 1940-10-22
FR855117A (en) 1940-05-03

Similar Documents

Publication Publication Date Title
GB537798A (en) Improvements in or relating to oscillatory circuits for short electromagnetic waves
GB581976A (en) Improvements in or relating to circuit arrangements for mixing oscillations
GB515795A (en) Improvements in or relating to radio antennae
GB842063A (en) Omnidirectional beacon antenna
GB348784A (en) Improvements in or relating to methods of broadcasting by directional radiation
GB440041A (en) Improvements in or relating to loud-speakers and the like
GB682274A (en) Improvements in or relating to aircraft receiving antennae
US2802946A (en) Ultrahigh-frequency converter
GB504616A (en) Improvements in or relating to radio receiving systems
GB485979A (en) Improvements in or relating to frame aerial arrangements
GB609542A (en) Improvements in or relating to frequency-changers in superheterodyne receivers for very short waves
GB506518A (en) Improvements in or relating to short wave transmitting aerial systems
GB506630A (en) Improvements in or relating to directional radio receiver systems
US1956368A (en) Wired-wireless system
GB625199A (en) Improvements in or relating to electric condensers
US1874935A (en) Radio receiving system for aircraft
US2572183A (en) Amplitude-modulation-frequency-modulation antenna
US1683127A (en) Selective signaling system
US2462865A (en) Center fed antenna
GB517361A (en) Improvements in radio aerials
CA479645A (en) Paper cups
GB389346A (en) Improvements in or relating to feeder or conductor systems for use on very short waves
CA469241A (en) Methods and apparatus for screening suspensions
GB781419A (en) Antenna structure
GB469366A (en) Improvements in or relating to radio antennae particularly for television systems