GB628928A - Improvements in or relating to terminations for ultra-high-frequency electromagnetic wave transmission lines - Google Patents

Improvements in or relating to terminations for ultra-high-frequency electromagnetic wave transmission lines

Info

Publication number
GB628928A
GB628928A GB21715/47A GB2171547A GB628928A GB 628928 A GB628928 A GB 628928A GB 21715/47 A GB21715/47 A GB 21715/47A GB 2171547 A GB2171547 A GB 2171547A GB 628928 A GB628928 A GB 628928A
Authority
GB
United Kingdom
Prior art keywords
transmission lines
energy
length
cross
terminations
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
GB21715/47A
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.)
Sperry Gyroscope Co Inc
Original Assignee
Sperry Gyroscope Co Inc
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 Sperry Gyroscope Co Inc filed Critical Sperry Gyroscope Co Inc
Publication of GB628928A publication Critical patent/GB628928A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling
    • H01P5/022—Transitions between lines of the same kind and shape, but with different dimensions
    • H01P5/026—Transitions between lines of the same kind and shape, but with different dimensions between coaxial lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/24—Terminating devices
    • H01P1/26—Dissipative terminations
    • H01P1/266—Coaxial terminations

Landscapes

  • Constitution Of High-Frequency Heating (AREA)
  • Gyroscopes (AREA)

Abstract

628,928. High-frequency transmission lines. SPERRY GYROSCOPE CO. Aug. 7, 1947, No. 21715. Convention date, July 30, 1943. [Class 40 (viii)] An energy-absorbing termination for a highfrequency transmission line comprises a portion of line having material for absorbing energy distributed along its length and having its cross-section changed continuously or in steps so that the characteristic impedance decreases from the value at the input end to near zero at the opposite end. In the example shown of a coaxial construction the inner conductor 13 includes resistive material to absorb energy and the outer conductor 14 tapers in an exponential curve. For ease in manufacture the curve may be approximated by successive short cylindrical sections of diminishing diameter. If the length of these sections is only of the order of one eighth of the operating wavelength no substantial difference appears in the operation of this modification. Alternatively the outer conductor may be a cylinder and embody resistive material while the inner conductor expands in cross-section to the dead end.
GB21715/47A 1943-07-30 1947-08-07 Improvements in or relating to terminations for ultra-high-frequency electromagnetic wave transmission lines Expired GB628928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US496715A US2438915A (en) 1943-07-30 1943-07-30 High-frequency terminating impedance

Publications (1)

Publication Number Publication Date
GB628928A true GB628928A (en) 1949-09-07

Family

ID=23973816

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21715/47A Expired GB628928A (en) 1943-07-30 1947-08-07 Improvements in or relating to terminations for ultra-high-frequency electromagnetic wave transmission lines

Country Status (2)

Country Link
US (1) US2438915A (en)
GB (1) GB628928A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE953817C (en) * 1953-03-29 1956-12-06 Telefunken Gmbh Device for damping very short electromagnetic waves traveling in a coaxial line
DE960110C (en) * 1953-11-29 1957-03-14 Siemens Ag Coaxial terminating resistor for very high frequencies
DE961993C (en) * 1953-11-29 1957-04-18 Siemens Ag Coaxial attenuator for very high frequencies
EP0023437A1 (en) * 1979-07-27 1981-02-04 The Bendix Corporation Radio frequency load resistor
WO1984004426A1 (en) * 1983-05-05 1984-11-08 Commw Of Australia Transmission lines

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899640A (en) * 1959-08-11 carlin
US2648047A (en) * 1945-08-04 1953-08-04 Us Navy Wave guide calorimeter wattmeter
US2576060A (en) * 1945-08-08 1951-11-20 James M Wolf Radio-frequency calorimeter wattmeter
US2463428A (en) * 1945-12-17 1949-03-01 Foster F Rieke Coaxial line termination
US2646549A (en) * 1946-01-07 1953-07-21 Us Sec War Coaxial line terminating device
US2804598A (en) * 1946-02-08 1957-08-27 Roberto M Fano Wave guide termination
US2677109A (en) * 1946-05-01 1954-04-27 Us Navy Coaxial thermistor mount
US2594874A (en) * 1946-05-08 1952-04-29 Us Sec War High-frequency dissipating load
US2552707A (en) * 1946-08-21 1951-05-15 Bird Electronic Corp High-frequency coaxial coupling device
US2550689A (en) * 1946-12-11 1951-05-01 Wilbur E Gustafson Wide range high-frequency power meter
US2655635A (en) * 1948-12-21 1953-10-13 Rca Corp Transmission line termination
US2752572A (en) * 1949-01-26 1956-06-26 Bird Electronic Corp Liquid-cooled load for a coaxial transmission line
US2634307A (en) * 1950-03-07 1953-04-07 Quentin A Kerns High-frequency shunt
US2700749A (en) * 1950-10-24 1955-01-25 James R Bird Resistor for high-frequency electrical transmission lines
US2764739A (en) * 1952-02-01 1956-09-25 Rca Corp Directional coupler
US2840787A (en) * 1952-09-11 1958-06-24 Hughes Aircraft Co Hybrid tau type waveguide junction
US2884603A (en) * 1953-02-04 1959-04-28 Bird Electronic Corp Method of and apparatus for converting high frequency electrical energy into heat
NL95591C (en) * 1953-12-31
US2966639A (en) * 1955-06-06 1960-12-27 Bird Electronic Corp Diminutive coaxial line resistive termination
US2933705A (en) * 1955-10-25 1960-04-19 Polytechnic Res & Dev Co Inc Thermistor mounts
US2938182A (en) * 1955-11-18 1960-05-24 Raytheon Co Microwave tube output coupling
US3046507A (en) * 1957-04-18 1962-07-24 Jr Howard S Jones Waveguide components
US3312926A (en) * 1965-06-17 1967-04-04 Bird Electronics Corp Air-cooled coaxial line termination
JPS5132946B1 (en) * 1970-05-04 1976-09-16
GB1393391A (en) * 1971-04-19 1975-05-07 Spinner G End fitting for hf transmission lines
US4260962A (en) * 1979-08-06 1981-04-07 Motorola, Inc. RF Termination for coaxial transmission lines
US4647877A (en) * 1985-03-11 1987-03-03 Rockwell International Corporation Broadband signal termination apparatus comprising series cascade of resistors and transmission lines
US5047737A (en) * 1988-03-31 1991-09-10 Wiltron Company Directional coupler and termination for stripline and coaxial conductors
US5210464A (en) * 1991-05-15 1993-05-11 The United States Of America As Represented By The Department Of Energy Cavity resonance absorption in ultra-high bandwidth CRT deflection structure by a resistive load
JP2821567B2 (en) * 1993-02-26 1998-11-05 五郎 菅原 High frequency signal transmission equipment
US6229327B1 (en) * 1997-05-30 2001-05-08 Gregory G. Boll Broadband impedance matching probe
SE512036C2 (en) * 1998-05-08 2000-01-17 Ericsson Telefon Ab L M Device for impedance matching comprising two serial quartz wave transformers
EP1376751A4 (en) * 2001-04-05 2004-07-07 Sumitomo Electric Industries Connection structure of connector pin and signal line and semiconductor package using it
US8933335B2 (en) * 2011-10-14 2015-01-13 Varian Semiconductor Equipment Associates, Inc. Current lead with a configuration to reduce heat load transfer in an alternating electrical current environment
DE102013207020A1 (en) * 2013-04-18 2014-10-23 Siemens Aktiengesellschaft Apparatus and method for generating high voltage pulses
US10304593B2 (en) * 2017-10-20 2019-05-28 Microsoft Technology Licensing, Llc Data carrying cable with mixed-gauge conductors to achieve longer reach and flexibility

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1926807A (en) * 1928-04-14 1933-09-12 Rca Corp Impedance transformer
DE502807C (en) * 1928-10-16 1930-07-22 Telefunken Gmbh Arrangement for frequency-independent adaptation of consumers to high-frequency energy sources
US2273547A (en) * 1938-10-28 1942-02-17 Telefunken Gmbh Ohmic resistance for ultra-short waves
US2399645A (en) * 1942-01-09 1946-05-07 Hartford Nat Bank & Trust Co High-frequency resistance
US2409599A (en) * 1944-04-28 1946-10-15 Philco Corp Coaxial line termination

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE953817C (en) * 1953-03-29 1956-12-06 Telefunken Gmbh Device for damping very short electromagnetic waves traveling in a coaxial line
DE960110C (en) * 1953-11-29 1957-03-14 Siemens Ag Coaxial terminating resistor for very high frequencies
DE961993C (en) * 1953-11-29 1957-04-18 Siemens Ag Coaxial attenuator for very high frequencies
EP0023437A1 (en) * 1979-07-27 1981-02-04 The Bendix Corporation Radio frequency load resistor
WO1984004426A1 (en) * 1983-05-05 1984-11-08 Commw Of Australia Transmission lines
US4638272A (en) * 1983-05-05 1987-01-20 The Commonwealth Of Australia Lossy transmission line using spaced ferrite beads

Also Published As

Publication number Publication date
US2438915A (en) 1948-04-06

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