US1621992A - Valve generator arrangement - Google Patents

Valve generator arrangement Download PDF

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Publication number
US1621992A
US1621992A US498418A US49841821A US1621992A US 1621992 A US1621992 A US 1621992A US 498418 A US498418 A US 498418A US 49841821 A US49841821 A US 49841821A US 1621992 A US1621992 A US 1621992A
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US
United States
Prior art keywords
circuit
harmonics
arrangement
valve generator
antenna
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
US498418A
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English (en)
Inventor
Meissner Alexander
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.)
DRAHTLOSE TELEGRAPHIE MBH
Gesellschaft fur Drahtlose Telegraphie Mbh Hallesches
Original Assignee
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
Application filed by DRAHTLOSE TELEGRAPHIE MBH filed Critical DRAHTLOSE TELEGRAPHIE MBH
Application granted granted Critical
Publication of US1621992A publication Critical patent/US1621992A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

  • overoscillations or harmonics occur in the oscillating circuit, and this manifests itself by the deviation of the current curve from the .sine form.
  • the over-oscillations may have harmful effects.
  • wireless telegraph senders e. in which the antenna is connected with the tubes as an energized circuit,
  • An object of my invention is, therefore, to use a special means for eliminating the over-oscillations from circuits in which they are not needed.
  • Fig. l shows a single closed oscillating circuit to eliminate over oscillations:
  • Fig. 2 a plurality of closed oscillating circuits connected to the antenna for the lsame purpose.
  • a closed oscillating circuit S is connected in parallel to the terminals of the tube coupling ⁇ A and B. and the oscillating circuit is tuned to the fundamental frequency of the generator.
  • the circuit presents to the fundamental frequency an infinitely high resistance and does not absorb any energy. However, the circuit serves as a shunt path for harmonics of the fundamental frequency ⁇ and thus pref.
  • circuit 1s adjusted to the wave length it may serve also as a wave meter.
  • Fig. 2 Another means is disclosed in Fig. 2, wherein the same tube circuit is connected to ground.
  • one or a plurality of closed oscillating circuits S1, S2 are connected to the antenna, and these ⁇ circuits are individually tuned to the most prominent harlnonics and present against them an infinite resistance, but present no resistance to the basic frequency. For this reason, the harmonics cannot be radiated.
  • An arrangement for transmitting radio frequency energy comprising a vacuum tube generator, an antenna connected with the generator, and closed circuits in the antenna tuned individually to different harmonics of the basic frequency of the generator-for preventing radiation of such harmonics from the arrangement.
  • An arrangement for transn'iitting radio frequency energy comprising, a source of desired and undesired frequencies, an antenna connected with said source. and closed circuits in the antenna individually tuned to different undesired frequencies for preventing radiation of such undesired frequencies from the arrangement.
  • An arrangement for transmitting radio frequency energy comprising ⁇ a. source of desired and undesired frequencies. a transmission circuit connected with said source, and closed circuits in said transmission circuit individually tuned to different undesired frequencies for preventing transmission of such undesired frequencies.

Landscapes

  • Control Of High-Frequency Heating Circuits (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Transmitters (AREA)
US498418A 1917-12-22 1921-09-03 Valve generator arrangement Expired - Lifetime US1621992A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1621992X 1917-12-22

Publications (1)

Publication Number Publication Date
US1621992A true US1621992A (en) 1927-03-22

Family

ID=7737419

Family Applications (1)

Application Number Title Priority Date Filing Date
US498418A Expired - Lifetime US1621992A (en) 1917-12-22 1921-09-03 Valve generator arrangement

Country Status (3)

Country Link
US (1) US1621992A (enrdf_load_stackoverflow)
DE (1) DE304361C (enrdf_load_stackoverflow)
GB (1) GB147850A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2438382A (en) * 1945-05-05 1948-03-23 Rca Corp Oscillation generator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE852560C (de) * 1948-11-13 1952-10-16 Siemens Ag Schaltungsanordnung zur Aussiebung von Oberwellen
DE973679C (de) * 1952-07-25 1960-04-28 Telefunken Gmbh Schaltungsanordnung zur Unterdruckung der Ausstrahlung der Oberwellen eines Oszillators eines UKW-Empfaengers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2438382A (en) * 1945-05-05 1948-03-23 Rca Corp Oscillation generator

Also Published As

Publication number Publication date
GB147850A (en) 1921-09-08
DE304361C (enrdf_load_stackoverflow)

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