US1633775A - Antenna arrangement for short-wave apparatus - Google Patents

Antenna arrangement for short-wave apparatus Download PDF

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Publication number
US1633775A
US1633775A US140378A US14037826A US1633775A US 1633775 A US1633775 A US 1633775A US 140378 A US140378 A US 140378A US 14037826 A US14037826 A US 14037826A US 1633775 A US1633775 A US 1633775A
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US
United States
Prior art keywords
wave
antenna
short
antenna arrangement
wave apparatus
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
US140378A
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English (en)
Inventor
Esau Abraham
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Individual
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Individual
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Filing date
Publication date
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Publication of US1633775A publication Critical patent/US1633775A/en
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Expired - Lifetime legal-status Critical Current

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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

Definitions

  • This invention relates to antenna arrangements particularly for short-wave apparatus. r
  • the antenna is connected to the oscillation circuit either inductively or through capacity.
  • the antenna is connected by a metallic .conductor.
  • a further feature of the invention consists in the connecting of a plurality of antennae to a number of nodes of voltage whereby a reflecting member associated with the anis equal to a quarter of a wave length or to an uneven multiple of same. If the antenna length differs from these values the oscillations cease.
  • This fact as a means for controlling the radiated energy of shortwave senders by changing the length of the antenna at will. This is preferably effected by adding or subtracting a section of the antenna by means of a key, switch or the like.
  • Fig. 1 shows an arrangement in which one antenna is employed while Fig. 2 shows an arrangement in which a plurality of antennae are used.
  • 11 denotes the source of anode current
  • D and D are high frequency choking coils
  • R is a non-inductive resistance
  • W a heating current resistance
  • E the heat ing or filament battery.
  • C is a condenser and L a wave carrying member or coil of the oscillation circuit.
  • the wave carrying coil L of Fig. 1 there is a node of voltage (2 to which the antenna A is connected.
  • the wave carrying coil L of Fig. 2 there are two nodes of potential (1 and a, to which the antennae A and A are connected.
  • Antenna arrangement for shortwave radiation comprising a closed oscillation circuit including a Wave-carrying coil isolated from the earth, and a wave radiator in direct conducting connection with a node of voltage of the Wave carrying coil in said closed circuit.
  • Antenna arrangement for short-wave radiation comprising a wave-carrying coil insulated from the earth, and wave radiators in direct conducting connection with nodes of voltage of the wave-carrying coil, whereby aoreflecting member associated with an antenna member is obtained.
  • Antenna arrangement for shortwave radiation comprising a closed oscillation circuit including a wave-carrying coil isolated from the earth, and wave-radiators in direct conducting connection with nodes of voltage of the wavecarrying coil in said closed circuit, whereby a reflecting member associated with an antenna member is obtained.
  • Antenna arrangement for short-Wave radiation comprising a closed oscillation circuit including a wave-carrying coil isolated from the earth, a section of antenna in direct conducting connection with a node of voltage of the wave-carrying coil in said closed circuit, another section of antenna, and a device for connecting and disconnecting said sections, whereby the radiation is controlled.

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  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Toys (AREA)
US140378A 1925-10-07 1926-10-08 Antenna arrangement for short-wave apparatus Expired - Lifetime US1633775A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
US1633775A true US1633775A (en) 1927-06-28

Family

ID=5966878

Family Applications (1)

Application Number Title Priority Date Filing Date
US140378A Expired - Lifetime US1633775A (en) 1925-10-07 1926-10-08 Antenna arrangement for short-wave apparatus

Country Status (3)

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

Cited By (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
US5187488A (en) * 1989-11-14 1993-02-16 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Tunable high-frequency antenna

Cited By (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
US5187488A (en) * 1989-11-14 1993-02-16 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Tunable high-frequency antenna

Also Published As

Publication number Publication date
GB259579A (en) 1927-09-01
FR210416A (enrdf_load_stackoverflow)

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