US2453078A - Device for wave length transformation of very short waves - Google Patents

Device for wave length transformation of very short waves Download PDF

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Publication number
US2453078A
US2453078A US479468A US47946843A US2453078A US 2453078 A US2453078 A US 2453078A US 479468 A US479468 A US 479468A US 47946843 A US47946843 A US 47946843A US 2453078 A US2453078 A US 2453078A
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United States
Prior art keywords
frequency
diode
short waves
anodes
signal
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Expired - Lifetime
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US479468A
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English (en)
Inventor
Posthumus Klass
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.)
Hartford National Bank and Trust Co
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Hartford National Bank and Trust Co
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1408—Balanced arrangements with diodes

Definitions

  • This invention relates to a device for wavelength trans-for-mation, more particularly of very short waves. that the tuning of the input circuit and that of the local generator act upon each other. With the known circuits for the above-stated purpose" it was consequently necessary for the irequency' of the local oscillations toxbe so chosen as to cor, respond approximately aharmonic or a -subharmonic of the signal toi b'e received. I
  • the'circuit is preferably so made that.
  • theutwor branches of the bridge connection which coincide. in one of the corner points which hasixtheauxiliary voltage supplied to itare each constituted by adiodeandthe two other branches are: each constitutedllby a capacity.
  • the generator for the auxiliary oscillations and the two dirodes are arranged in one envelope, in such manner that the anode of the generator section. is-
  • the plate I is connected anode l '
  • the signal voltage is supplied in push-pull: across the two diode-anodes by means of a; cool-'- pling. transformer 8-, the secondary of which: may be center-tapped directly to ground or" through, a resistance It; in the conventional manner.
  • The" electrode system consisting of the cathode 2;. the control grid 3- and the anode 4 is connected as a. tri-ode generator for very short waves; for" which; purpose a tunable Lecher wire system; 9 is pro vided between the control grid and the anode.
  • 'Ihe oscillations thus generated are supplied ca. pacitatively and with equal phase to the two diode-anodes 5 and 6- so that frequency-changing occurs inthe two diodes and the desired voltage: of the sum or difference" frequency may be taken from the circuit Ill tuned to this frequency.
  • Energizing potential. for the" anode 4' of the oscillator section is applied in: the conventional manner from a source of direct current potential;
  • Biasing potential for the grid" 3 is? obtained from a sou-roe represented by -G through a grid re;
  • sistance l'l a blocking. condenser l8 serving to I isolate the" grid from the source of anode voltage inthe conventional manner.
  • the further advantages of the device according to the invention are the possibility of greatly reducing the length of the connecting leads between the generator sec- 1 tion and the frequency-changing section, since the electrode systems concerned may be arranged in one envelope, and the possibility of connecting the cathode of the system to earth. Besides, it is in this case very well possible for the generator oscillations "to be generated with a frequency equal, for example, to that of the input signal increased by the intermediate frequency, instead of a harmonic or a subharmonic of this frequency.
  • a frequency-changing network adapted to mix a voltage of locally generated oscillations with a signal voltage particularly for use in signalling by means of short waves, comprising a bridge connection constituted by a diode in each of two.
  • branches of the bridge connection and a capacity in each of the two remaining branches characterized in that the voltage of locally-generated, oscillations is supplied across that diagonal of the bridge across which the dissimilar branches are in series and the signal voltage is applied across the other diagonal across which the similar branches are in series.
  • a frequency-changing network particularly for use in signalling by means of short waves, comprising a bridge connection constituted by a diode in each of two branches of the bridge connection and a capacity in each of the two remaining branches, said diodes having a common cathode which forms one corner point of the bridge, theopposite corner point of said bridge beingformed by the common terminal connection of said capacities, a Voltage source oflocallygenerated oscillations connected across said corner points which constitute one diagonal of the bridge, and a signal voltage source connected across the other diagonal of the bridge.
  • electron discharge tube provided with a pair of diodes and a plurality of additional electrodes, an input circuit tuned to the signal frequency coupled to the diode-anodes, external circuit elements connected to said additional electrodes constituting an oscillator of a predetermined frequency, coupling means within said discharge tube between the oscillator output and each of the diodes, and a circuit tuned to a frequency resulting from the inter-action between the signal and oscillator frequencies connected between the diode-anodes.
  • a frequency converter circuit utilizing an electron discharge tube provided with a common cathode, a pair of diode-plates and a plurality of 4 additional electrodes including an anode, an input circuit tuned to the signal frequency coupled to the diode-plates, external circuit elements conwithin said discharge device for coupling the oscillator section to eachof the diode-anodes, and a circuit connected between the diode-anodes for deriving the sum or difference frequency resulting from the inter-action between the signal and oscillator frequencies.
  • a frequency converter system for high frequencies comprising, in combination, a generator of local oscillations, a pair of diodes, a signal input circuit connected in push-pull to the diodes, a circuit connected between the diode-anodes for deriving the sum or difference frequency resulting from the inter-action between the signal and oscillator frequencies, and the improvement which consists in providing capacitive coupling means from the local oscillator generator to each of the diode-anodes.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
US479468A 1940-12-05 1943-03-17 Device for wave length transformation of very short waves Expired - Lifetime US2453078A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL605352X 1940-12-05

Publications (1)

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US2453078A true US2453078A (en) 1948-11-02

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US479468A Expired - Lifetime US2453078A (en) 1940-12-05 1943-03-17 Device for wave length transformation of very short waves

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US (1) US2453078A (en))
BE (1) BE443633A (en))
FR (1) FR877452A (en))
GB (1) GB605352A (en))
NL (2) NL58327C (en))

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515441A (en) * 1947-06-25 1950-07-18 Avco Mfg Corp Antenna input circuits
US2553672A (en) * 1948-09-24 1951-05-22 Rca Corp Amplification and demodulation system
US2554107A (en) * 1944-07-26 1951-05-22 Hartford Nat Bank & Trust Co Push-pull mixing circuit
US2571041A (en) * 1946-06-28 1951-10-09 Rca Corp Heterodyne detector circuit
US2591982A (en) * 1941-07-30 1952-04-08 Hartford Nat Bank & Trust Co Superheterodyne receiver for very short waves
US2591983A (en) * 1943-11-12 1952-04-08 Hartford Nat Bank & Trust Co Mixing circuit arrangement
US2594167A (en) * 1948-07-30 1952-04-22 Rca Corp Ultrahigh-frequency bridge circuits
US2606283A (en) * 1943-03-27 1952-08-05 Hartford Nat Bank & Trust Co Mixing circuit arrangement
US2636980A (en) * 1953-04-28
US2664501A (en) * 1949-08-10 1953-12-29 Wilcox Gay Corp Frequency conversion system
US2790898A (en) * 1953-05-04 1957-04-30 Bady Isidore Weak signal detector using synchronously switched rectifier bridge
US2849602A (en) * 1952-03-01 1958-08-26 Du Mont Allen B Lab Inc Heterodyne circuit
US2962669A (en) * 1957-08-30 1960-11-29 Rca Corp Modulator of the on/off type
US3058028A (en) * 1948-05-24 1962-10-09 Wilkes Gilbert Thermionic type detector for microwave signals
US3202940A (en) * 1960-06-25 1965-08-24 Clevite Corp Semiconductor amplitude modulation circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL99734B (en)) * 1940-12-05

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL58327C (en)) * 1940-12-05
US1821808A (en) * 1927-08-31 1931-09-01 Gen Electric Space discharge device
US1864591A (en) * 1925-01-08 1932-06-28 Rca Corp Thermionic device
US1916408A (en) * 1927-04-13 1933-07-04 Rca Corp Electric discharge tube
US2071630A (en) * 1932-07-18 1937-02-23 Heintz & Kaufman Ltd Multiple electrode thermionic tube
US2163707A (en) * 1936-02-27 1939-06-27 Telefunken Gmbh Wide band modulation
US2285372A (en) * 1940-05-30 1942-06-02 Strutt Maximiliaan Julius Otto Push-pull mixing circuit for ultrashort waves
US2325664A (en) * 1940-04-09 1943-08-03 Cohn Henny Electron discharge device
US2326801A (en) * 1938-09-22 1943-08-17 George E Pray High frequency tubes and circuits

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1864591A (en) * 1925-01-08 1932-06-28 Rca Corp Thermionic device
US1916408A (en) * 1927-04-13 1933-07-04 Rca Corp Electric discharge tube
US1821808A (en) * 1927-08-31 1931-09-01 Gen Electric Space discharge device
US2071630A (en) * 1932-07-18 1937-02-23 Heintz & Kaufman Ltd Multiple electrode thermionic tube
US2163707A (en) * 1936-02-27 1939-06-27 Telefunken Gmbh Wide band modulation
US2326801A (en) * 1938-09-22 1943-08-17 George E Pray High frequency tubes and circuits
US2325664A (en) * 1940-04-09 1943-08-03 Cohn Henny Electron discharge device
US2285372A (en) * 1940-05-30 1942-06-02 Strutt Maximiliaan Julius Otto Push-pull mixing circuit for ultrashort waves
NL58327C (en)) * 1940-12-05

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2636980A (en) * 1953-04-28
US2591982A (en) * 1941-07-30 1952-04-08 Hartford Nat Bank & Trust Co Superheterodyne receiver for very short waves
US2606283A (en) * 1943-03-27 1952-08-05 Hartford Nat Bank & Trust Co Mixing circuit arrangement
US2591983A (en) * 1943-11-12 1952-04-08 Hartford Nat Bank & Trust Co Mixing circuit arrangement
US2554107A (en) * 1944-07-26 1951-05-22 Hartford Nat Bank & Trust Co Push-pull mixing circuit
US2571041A (en) * 1946-06-28 1951-10-09 Rca Corp Heterodyne detector circuit
US2515441A (en) * 1947-06-25 1950-07-18 Avco Mfg Corp Antenna input circuits
US3058028A (en) * 1948-05-24 1962-10-09 Wilkes Gilbert Thermionic type detector for microwave signals
US2594167A (en) * 1948-07-30 1952-04-22 Rca Corp Ultrahigh-frequency bridge circuits
US2553672A (en) * 1948-09-24 1951-05-22 Rca Corp Amplification and demodulation system
US2664501A (en) * 1949-08-10 1953-12-29 Wilcox Gay Corp Frequency conversion system
US2849602A (en) * 1952-03-01 1958-08-26 Du Mont Allen B Lab Inc Heterodyne circuit
US2790898A (en) * 1953-05-04 1957-04-30 Bady Isidore Weak signal detector using synchronously switched rectifier bridge
US2962669A (en) * 1957-08-30 1960-11-29 Rca Corp Modulator of the on/off type
US3202940A (en) * 1960-06-25 1965-08-24 Clevite Corp Semiconductor amplitude modulation circuit

Also Published As

Publication number Publication date
FR877452A (fr) 1942-12-08
GB605352A (en) 1948-07-21
BE443633A (en))
NL99734B (en))
NL58327C (en))

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