FR2428943A1 - Correction system for transmission line - has mixers and filters processing direct and reflected power outputs of directional coupler - Google Patents

Correction system for transmission line - has mixers and filters processing direct and reflected power outputs of directional coupler

Info

Publication number
FR2428943A1
FR2428943A1 FR7817888A FR7817888A FR2428943A1 FR 2428943 A1 FR2428943 A1 FR 2428943A1 FR 7817888 A FR7817888 A FR 7817888A FR 7817888 A FR7817888 A FR 7817888A FR 2428943 A1 FR2428943 A1 FR 2428943A1
Authority
FR
France
Prior art keywords
mixers
direct
power
signals
correction system
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.)
Withdrawn
Application number
FR7817888A
Other languages
French (fr)
Inventor
Michel Georges Poullain
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Priority to FR7817888A priority Critical patent/FR2428943A1/en
Publication of FR2428943A1 publication Critical patent/FR2428943A1/en
Withdrawn legal-status Critical Current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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H19/00—Networks using time-varying elements, e.g. N-path filters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmitters (AREA)

Abstract

The correction system has a directional coupler (C) between a signal source (A) (e.g. a transmitter) and a load (E) (e.g. an aerial). The coupler produces two signals: one describing the direct transmitted power and the other the power reflected from the load. The system processes these two signals using mixers to produce dc signals proportional to the direct transmitted power (PdA) and the reflected power (PrA). The dc signals can be used to monitor standing waves in the line and/or to match the aerial. The first mixer (M1) combines the transmitter's output (VA) with the coupler's direct power output. A second mixer (M2) combines the transmitter's output shifted in phase by 90 deg (G) with the coupler's direct power output. The outputs of the two mixers are LP filtered (F1, F2) and combined (J) to produce the wanted dc signal proportional to direct transmitted power. The reflected power output (PrA) is handled in the same way.
FR7817888A 1978-06-15 1978-06-15 Correction system for transmission line - has mixers and filters processing direct and reflected power outputs of directional coupler Withdrawn FR2428943A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7817888A FR2428943A1 (en) 1978-06-15 1978-06-15 Correction system for transmission line - has mixers and filters processing direct and reflected power outputs of directional coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7817888A FR2428943A1 (en) 1978-06-15 1978-06-15 Correction system for transmission line - has mixers and filters processing direct and reflected power outputs of directional coupler

Publications (1)

Publication Number Publication Date
FR2428943A1 true FR2428943A1 (en) 1980-01-11

Family

ID=9209549

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7817888A Withdrawn FR2428943A1 (en) 1978-06-15 1978-06-15 Correction system for transmission line - has mixers and filters processing direct and reflected power outputs of directional coupler

Country Status (1)

Country Link
FR (1) FR2428943A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0060325A1 (en) * 1981-03-12 1982-09-22 Siemens Aktiengesellschaft Circuit for the conversion of an input signal, comprising harmonics in a certain frequency domain in an in-phase and/or amplitude-adjustable sinusoidal output signal
FR2560998A1 (en) * 1984-03-09 1985-09-13 Cgr Mev Method of measuring impedance at high frequency and high-frequency impedance measurement installation for implementing the method
CN108156612A (en) * 2016-12-06 2018-06-12 罗森伯格（上海）通信技术有限公司 Standing wave analysis instrument

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2065287C1 (en) * 1970-09-30 1977-12-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2065287C1 (en) * 1970-09-30 1977-12-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV2198/73 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0060325A1 (en) * 1981-03-12 1982-09-22 Siemens Aktiengesellschaft Circuit for the conversion of an input signal, comprising harmonics in a certain frequency domain in an in-phase and/or amplitude-adjustable sinusoidal output signal
FR2560998A1 (en) * 1984-03-09 1985-09-13 Cgr Mev Method of measuring impedance at high frequency and high-frequency impedance measurement installation for implementing the method
CN108156612A (en) * 2016-12-06 2018-06-12 罗森伯格（上海）通信技术有限公司 Standing wave analysis instrument

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