GB1490850A - Electronic network analyzer - Google Patents

Electronic network analyzer

Info

Publication number
GB1490850A
GB1490850A GB26177A GB26177A GB1490850A GB 1490850 A GB1490850 A GB 1490850A GB 26177 A GB26177 A GB 26177A GB 26177 A GB26177 A GB 26177A GB 1490850 A GB1490850 A GB 1490850A
Authority
GB
United Kingdom
Prior art keywords
phase
network analyzer
signals
shifter
network
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
GB26177A
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.)
HP Inc
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of GB1490850A publication Critical patent/GB1490850A/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
    • G01R27/28—Measuring attenuation, gain, phase shift or derived characteristics of electric four pole networks, i.e. two-port networks; Measuring transient response
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Networks Using Active Elements (AREA)

Abstract

1490850 Network analyzer HEWLETTPACKARD CO 24 Sept 1974 [23 Nov 1973] 00261/77 Divided out of 1490849 Heading G1U A two-channel A.C. network analyzer suitable for the measurement of the characteristics of a network or a device 18 e.g. phase or group delay comprises frequency converters 26, 28 for converting a test signal derived from 18 and a reference signal at 12 to the same I.F. frequency, an arrangement 36 for measuring the relative value of a given parameter, e.g. amplitude or phase, of the two I.F. signals and a variable electronic phase shifter 24 for shifting the phase of the reference I.F. and for ensuring a zero phase offset between the two I.F. signals at the inputs of 36. A sweep oscillator 16 feeding the two channels, a local oscillator 30 and the phase-shifter 24 are arranged to track over a wide range. The element 24 is of the phase shift multiplier type and is the subject of invention claimed in the parent Specification 41522/74 (see Division H3).
GB26177A 1973-11-23 1974-09-24 Electronic network analyzer Expired GB1490850A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US41832473A 1973-11-23 1973-11-23

Publications (1)

Publication Number Publication Date
GB1490850A true GB1490850A (en) 1977-11-02

Family

ID=23657640

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4152274A Expired GB1490849A (en) 1973-11-23 1974-09-24 Phase shift circuits
GB26177A Expired GB1490850A (en) 1973-11-23 1974-09-24 Electronic network analyzer

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB4152274A Expired GB1490849A (en) 1973-11-23 1974-09-24 Phase shift circuits

Country Status (4)

Country Link
JP (1) JPS5160138A (en)
DE (2) DE2462255C3 (en)
FR (1) FR2252697B1 (en)
GB (2) GB1490849A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2803608C2 (en) * 1978-01-27 1985-04-18 Wandel & Goltermann Gmbh & Co, 7412 Eningen Four-pole measuring method and circuit arrangement for its implementation
DE3119975C2 (en) * 1981-05-20 1985-02-14 Rohde & Schwarz GmbH & Co KG, 8000 München Homodyne network analysis method
JP2500242Y2 (en) * 1990-02-21 1996-06-05 矢崎総業株式会社 Cross coil type indicator
JP4729251B2 (en) 2003-11-28 2011-07-20 株式会社アドバンテスト High frequency delay circuit and test apparatus

Also Published As

Publication number Publication date
DE2462255A1 (en) 1976-07-08
DE2445955B2 (en) 1979-05-31
DE2445955A1 (en) 1975-06-05
DE2462255C3 (en) 1978-04-13
JPS5160138A (en) 1976-05-25
FR2252697B1 (en) 1978-11-24
GB1490849A (en) 1977-11-02
FR2252697A1 (en) 1975-06-20
DE2445955C3 (en) 1980-01-10
DE2462255B2 (en) 1977-08-11
JPS5430868B2 (en) 1979-10-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee