GB1445665A - Vswr alarm system - Google Patents

Vswr alarm system

Info

Publication number
GB1445665A
GB1445665A GB4462774A GB4462774A GB1445665A GB 1445665 A GB1445665 A GB 1445665A GB 4462774 A GB4462774 A GB 4462774A GB 4462774 A GB4462774 A GB 4462774A GB 1445665 A GB1445665 A GB 1445665A
Authority
GB
United Kingdom
Prior art keywords
alarm system
vswr alarm
vswr
alarm
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
GB4462774A
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1445665A publication Critical patent/GB1445665A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/04—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant in circuits having distributed constants, e.g. having very long conductors or involving high frequencies
    • G01R27/06—Measuring reflection coefficients; Measuring standing-wave ratio

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmitters (AREA)
GB4462774A 1973-10-15 1974-10-15 Vswr alarm system Expired GB1445665A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US406711A US3870957A (en) 1973-10-15 1973-10-15 VSWR alarm system

Publications (1)

Publication Number Publication Date
GB1445665A true GB1445665A (en) 1976-08-11

Family

ID=23609147

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4462774A Expired GB1445665A (en) 1973-10-15 1974-10-15 Vswr alarm system

Country Status (2)

Country Link
US (1) US3870957A (en)
GB (1) GB1445665A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4038160A1 (en) * 1990-11-30 1992-07-30 Telefunken Sendertechnik Detecting mismatch on feed line between radio transmitter and aerial - using directional couplers and generating AC voltage corresp. to waves propagated in both directions
GB2346292B (en) * 1999-01-30 2003-06-11 Motorola Ltd Voltage standing-wave ratio measurement apparatus and use in a cellular communications system

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019150A (en) * 1975-11-17 1977-04-19 Motorola, Inc. PA protection circuit for a single sideband radio
US4041395A (en) * 1976-08-02 1977-08-09 Integral Engineering & Manufacturing Corporation Transmitter performance monitor and antenna matching system
CH615785A5 (en) * 1977-05-04 1980-02-15 Bbc Brown Boveri & Cie
US4137556A (en) * 1977-09-02 1979-01-30 Alpex Computer Corporation Protection circuit for a data transmission system
US4274156A (en) * 1978-01-18 1981-06-16 Bird Electronic Corporation Monitor for RF transmitter
US4249258A (en) * 1979-11-21 1981-02-03 Georgia Tech Research Institute Self-calibrating voltage standing-wave ratio meter system
JPS5694848A (en) * 1979-12-28 1981-07-31 Nec Corp Control system of transmitter
US4353037A (en) * 1980-08-11 1982-10-05 Motorola, Inc. Amplifier protection circuit
US4447783A (en) * 1982-05-19 1984-05-08 The Perkin-Elmer Corp. Programmable RF power regulator (stabilizer)
JPS60171414A (en) * 1984-02-13 1985-09-04 プリンストン・アプライド・リサ−チ・コ−ポレイシヨン Lock-in amplifier
US4621242A (en) * 1984-03-19 1986-11-04 The Perkin-Elmer Corporation R.F. impedance match control system
US4593409A (en) * 1984-04-04 1986-06-03 Motorola, Inc. Transceiver protection arrangement
CA1261002A (en) * 1985-11-22 1989-09-26 Harvey N. Turner, Jr. Impedance mismatch detector
US4704573A (en) * 1985-11-22 1987-11-03 Motorola, Inc. Impedance mismatch detector
US4799063A (en) * 1987-09-14 1989-01-17 Grumman Aerospace Corporation Method and apparatus for isolating faults in an antenna system
US4967159A (en) * 1989-02-23 1990-10-30 Abbott Laboratories Self-balancing reflectometer
US5090847A (en) * 1989-05-04 1992-02-25 U.S. Tech Corporation Pressure foot for microwave drill detection system
US4988943A (en) * 1989-08-25 1991-01-29 Motorola, Inc. VSWR meter arrangement with a display output having a linear scale
FI92766C (en) * 1993-04-14 1994-12-27 Nokia Telecommunications Oy Method and apparatus for checking the condition of an antenna
US5689267A (en) * 1995-11-22 1997-11-18 Allied Signal Inc Automatic VSWR sensing for aircraft-mounted pulse radar systems
US6557564B1 (en) * 1999-10-30 2003-05-06 Applied Materials, Inc. Method and apparatus for cleaning a thin disk
US6417732B1 (en) * 2001-04-06 2002-07-09 Eni Technology, Inc. Controller for RF power generator with reduced cable length sensitivity
US20060035600A1 (en) * 2004-07-28 2006-02-16 Samsung Electronics Co., Ltd. RF front-end apparatus in a TDD wireless communication system
US9148796B2 (en) 2012-12-13 2015-09-29 Ninve Jr. Inc. Resilient antenna disturbance detector
CN112154604A (en) 2018-05-23 2020-12-29 华为技术有限公司 Antenna controller for an antenna with a linear power amplifier

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3020529A (en) * 1959-12-21 1962-02-06 Collins Radio Co Reflected power alarm for a variable power output antenna system
NL295488A (en) * 1962-07-19
US3508115A (en) * 1966-08-22 1970-04-21 Ex Cell O Corp Circuit for and method of current responsive electronic control
US3417293A (en) * 1966-10-28 1968-12-17 Gen Electric Reverse current indicating circuit
JPS5551223B1 (en) * 1969-09-20 1980-12-23
US3794941A (en) * 1972-05-08 1974-02-26 Hughes Aircraft Co Automatic antenna impedance tuner including digital control circuits

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4038160A1 (en) * 1990-11-30 1992-07-30 Telefunken Sendertechnik Detecting mismatch on feed line between radio transmitter and aerial - using directional couplers and generating AC voltage corresp. to waves propagated in both directions
GB2346292B (en) * 1999-01-30 2003-06-11 Motorola Ltd Voltage standing-wave ratio measurement apparatus and use in a cellular communications system

Also Published As

Publication number Publication date
US3870957A (en) 1975-03-11

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed