US2419800A - Ultra high frequency amplifier - Google Patents

Ultra high frequency amplifier Download PDF

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Publication number
US2419800A
US2419800A US445508A US44550842A US2419800A US 2419800 A US2419800 A US 2419800A US 445508 A US445508 A US 445508A US 44550842 A US44550842 A US 44550842A US 2419800 A US2419800 A US 2419800A
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US
United States
Prior art keywords
output
input
grid
ultra high
chambers
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
US445508A
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English (en)
Inventor
Tomlin Stanley Gordon
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Application granted granted Critical
Publication of US2419800A publication Critical patent/US2419800A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
    • H03F3/52—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower with tubes only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/78—One or more circuit elements structurally associated with the tube
    • H01J19/80—Structurally associated resonator having distributed inductance and capacitance
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/54—Amplifiers using transit-time effect in tubes or semiconductor devices

Definitions

  • the present invention relates to ultra high frequency amplifiers and particularly though not solely to ultra hi h frequency amplifiers associated with circuit arrangements utilis ng concentric line conductors.
  • an amplifier for ultra high frequencies comprises an input and an output resonant chamber arranged in alignment with each other and each containing a part of a h rmionic lectr n i char e evice c mlar to the axis of the chambers.
  • the outer conprising at least a cathode, an anode and a control ductors 2, 2' are provided at the adjacent ends grid, said cathode being electrically connected to with fl n e 3 m respectively and which are the input chamber and the anode being electriparahel to each other,
  • the control grid is cally connected to the output chamber and said vided t an nnular plate member ll integral Control grid being p id With n allXilia-ly 5 therewith and preferably of copper.
  • This anmetallic member extending outside the enclosing nuler plate member H is located between the envelope of the discharge device and sandwiched two flanges m m so as to f therewith between the walls of the two chambers to form a Capacitive eouphngs
  • the central conductor 3 Screen between the input and output Circuits! is shown as a hollow conductor serving as one blocking capacities being inserted in the grid lead for the cathode heater, the other lead being cathode path and in the grid-anode path.
  • the input feed circuit is shown as a concentric tials to be the Fespective electrodes line l2, l3, the outer conductor l2 of which is carrymg the mventlon into prajctlce both slidably connected to the outer conductor or wall Sald Phambers may t: settlon of t of chamber 2 and the inner conductor l3 thereof ceintnc cottductor tta'nsmlsslon hne provlded is slidably connected to the inner conductor or Wlth an adwst'ame plston to tunethe chambers wall of chamber 2.
  • the slidable connections are to the frequency of operation.
  • the output cirarmngement elther or both chambers may cult is shown also as a concentric transmission prise disc resonators provided with suitable line having outer conductor M and inner com tuning arrangements, as hereinafter described.
  • the nductor M is a push fit in the The former arrangement is particularly useful piston may be rotated Conductor sis for use with concentric conductor transmission looped and one end of the loop is connected to I 4 hne systems.
  • the blocking capacities may be conveniently an adjustable out ut cou ling formed between the auxiliary metallic member of In the arranggment s in Figure 3 a the grid the walls of the input and output hollow d sc resonator is used for the output chambers, or in any other convenient part of the circuit Wimst the in ut rcuit is the me grid-cathode and grid-anode circuits. In this Th di p i latter case the rid is directly connected to the 40 i 8 SC 9 or is m t 8 i walls of the chambers and earthed for both high i ⁇ apamtatlve connectmn the frequency and direct currents.
  • the second ing th i ti nd, copper disc I6 is also sealed into the glass en- Fig. 2 is an explanatory diagram. velope of the valve and acts as a closure for the Fig. 3 shows an alternative form of output outer end thereof.
  • This second disc or outer fiat circuit. wall of the resonator which is disposed parallel Fig. 3A is a modification of Fig. 3. to the first-mentioned disc, has the anode 8
  • the two chambers are indicated at I mounted thereon, and the disc resonator DR is and I, each comprising sections of concentric built upon the two discs H and I6, one fiat wall of the resonator being capacitivcly coupled to the copper disc II.
  • ductor M by a loop to form an inductive coupling with the resonator.
  • the conductor 14 is a push fit in the fiat end wall of the resonator so as to be rotatable to form an adjustable output coupling.
  • the triode is of special design with small cathode-grid spacing to minimise transmit time effects, and has a very fine grid so that the ampli- 'fication factor may be as large as possible. With a a of the order of 100 it should be possible to obtain power amplification of 30 times with a bandwidth of 4 mc./s. at a wavelength of 50 cms.
  • This amplification arrangement overcomes the difiiculties due to instability at ultra high frequencies by:
  • An amplifier for ultra high frequency comprising input and output resonator chambers at least one chamber consisting of a concentric conductor line section, said chambers being arranged in concentric alignment with each other and each enclosing a portion of an electron discharge device which comprises at least an anode, a cathode and a control grid, said cathode being electrically connected to the input chamber, said control grid having an annular metallic portion extending beyond the enclosing envelopes of the discharge device and sandwiched between the opposed end Walls of said two chambers to form an accessible screen'between the input and output circuits, blocking capacities inserted in the grid cathode path and in the grid-anode path, at

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Microwave Tubes (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
US445508A 1941-05-10 1942-06-02 Ultra high frequency amplifier Expired - Lifetime US2419800A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6073/41A GB585447A (en) 1941-05-10 1941-05-10 Improvements in ultra high frequency amplifiers

Publications (1)

Publication Number Publication Date
US2419800A true US2419800A (en) 1947-04-29

Family

ID=9807897

Family Applications (1)

Application Number Title Priority Date Filing Date
US445508A Expired - Lifetime US2419800A (en) 1941-05-10 1942-06-02 Ultra high frequency amplifier

Country Status (4)

Country Link
US (1) US2419800A (enrdf_load_stackoverflow)
BE (1) BE480316A (enrdf_load_stackoverflow)
FR (1) FR933066A (enrdf_load_stackoverflow)
GB (1) GB585447A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2524821A (en) * 1943-12-28 1950-10-10 Int Standard Electric Corp Wide frequency band amplifier
US2551715A (en) * 1945-10-16 1951-05-08 Rca Corp High-frequency amplifier
US2617884A (en) * 1945-08-24 1952-11-11 Int Standard Electric Corp Coupling arrangement between aerial and transmission line
US2677057A (en) * 1948-03-13 1954-04-27 Sylvania Electric Prod High-frequency electron tube and circuit
DE1172744B (de) * 1961-02-20 1964-06-25 Licentia Gmbh Selbsterregter Hochfrequenzgenerator mit Triode, fuer hohe Leistungen und Frequenzen
DE1295680B (de) * 1964-03-17 1969-05-22 Siemens Ag Einrichtung zur Kuehlung der Elektroden, insbesondere der Kathode einer Scheibenroehre

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2034433A (en) * 1933-09-06 1936-03-17 Heintz & Kaufman Ltd Shielded electrode tube
US2052888A (en) * 1932-04-05 1936-09-01 Rca Corp Short wave signaling
US2153728A (en) * 1936-10-07 1939-04-11 American Telephone & Telegraph Ultra high frequency signaling
US2169396A (en) * 1936-05-08 1939-08-15 Bell Telephone Labor Inc Signal-translating apparatus
US2253489A (en) * 1937-05-20 1941-08-19 Raymond L Smith Metal finish
US2278210A (en) * 1940-07-05 1942-03-31 Bell Telephone Labor Inc Electron discharge device
US2283895A (en) * 1940-10-09 1942-05-19 Westinghouse Electric & Mfg Co Ultra high frequency oscillator
US2284405A (en) * 1940-08-17 1942-05-26 Gen Electric High frequency apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2052888A (en) * 1932-04-05 1936-09-01 Rca Corp Short wave signaling
US2034433A (en) * 1933-09-06 1936-03-17 Heintz & Kaufman Ltd Shielded electrode tube
US2169396A (en) * 1936-05-08 1939-08-15 Bell Telephone Labor Inc Signal-translating apparatus
US2153728A (en) * 1936-10-07 1939-04-11 American Telephone & Telegraph Ultra high frequency signaling
US2253489A (en) * 1937-05-20 1941-08-19 Raymond L Smith Metal finish
US2278210A (en) * 1940-07-05 1942-03-31 Bell Telephone Labor Inc Electron discharge device
US2284405A (en) * 1940-08-17 1942-05-26 Gen Electric High frequency apparatus
US2283895A (en) * 1940-10-09 1942-05-19 Westinghouse Electric & Mfg Co Ultra high frequency oscillator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2524821A (en) * 1943-12-28 1950-10-10 Int Standard Electric Corp Wide frequency band amplifier
US2617884A (en) * 1945-08-24 1952-11-11 Int Standard Electric Corp Coupling arrangement between aerial and transmission line
US2551715A (en) * 1945-10-16 1951-05-08 Rca Corp High-frequency amplifier
US2677057A (en) * 1948-03-13 1954-04-27 Sylvania Electric Prod High-frequency electron tube and circuit
DE1172744B (de) * 1961-02-20 1964-06-25 Licentia Gmbh Selbsterregter Hochfrequenzgenerator mit Triode, fuer hohe Leistungen und Frequenzen
DE1295680B (de) * 1964-03-17 1969-05-22 Siemens Ag Einrichtung zur Kuehlung der Elektroden, insbesondere der Kathode einer Scheibenroehre

Also Published As

Publication number Publication date
BE480316A (enrdf_load_stackoverflow)
FR933066A (fr) 1948-04-09
GB585447A (en) 1947-02-07

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