GB259579A - Improvements in or relating to the radiation of electrical energy - Google Patents

Improvements in or relating to the radiation of electrical energy

Info

Publication number
GB259579A
GB259579A GB24744/26A GB2474426A GB259579A GB 259579 A GB259579 A GB 259579A GB 24744/26 A GB24744/26 A GB 24744/26A GB 2474426 A GB2474426 A GB 2474426A GB 259579 A GB259579 A GB 259579A
Authority
GB
United Kingdom
Prior art keywords
aerial
length
signalling
grid
aerials
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
GB24744/26A
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 GB259579A publication Critical patent/GB259579A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2/00—Networks using elements or techniques not provided for in groups H03H3/00 - H03H21/00
    • H03H2/005—Coupling circuits between transmission lines or antennas and transmitters, receivers or amplifiers
    • H03H2/006—Transmitter or amplifier output circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube

Landscapes

  • Toys (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

259,579. Esau, A. Oct. 7, 1925, [Convention date]. Coupling oscillating and radiating circuit; keying systems; directive signalling. - Transmitting aerials for short-wave radiation are directly connected to the exciting oscillatory circuit at a point insulated from earth and at which a node of voltage exists. As shown in the Figure, standing waves are set up on parallel wires w connected to the grid and plate of a valve V.. The plate wire may include a capacity C and the grid circuit includes a ,coil c. The aerial A is connected at a voltage node. A directive system may be obtained by connecting a number of aerials to separate voltage nodes spaced along the wire w. Oscillations are produced in the aerial. only when its length is equal to a, quarter wave-length or to an odd multiple thereof. Signalling may therefore be effected by changing the effective length of the aerial by a key, switch &c. K, connecting up an extension A'.
GB24744/26A 1925-10-07 1926-10-05 Improvements in or relating to the radiation of electrical energy Expired GB259579A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE259579X 1925-10-07

Publications (1)

Publication Number Publication Date
GB259579A true GB259579A (en) 1927-09-01

Family

ID=5966878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24744/26A Expired GB259579A (en) 1925-10-07 1926-10-05 Improvements in or relating to the radiation of electrical energy

Country Status (3)

Country Link
US (1) US1633775A (en)
FR (1) FR210416A (en)
GB (1) GB259579A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492794A (en) * 1944-08-28 1949-12-27 Eastman Oil Well Survey Co Methods of and apparatus for transmitting intelligence to the surface from well bores
NL8902812A (en) * 1989-11-14 1991-06-03 Tno SELF-TUNABLE HIGH-FREQUENCY ANTENNA.

Also Published As

Publication number Publication date
US1633775A (en) 1927-06-28
FR210416A (en)

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