GB1284021A - Improvements in or relating to carrier-frequency converters - Google Patents

Improvements in or relating to carrier-frequency converters

Info

Publication number
GB1284021A
GB1284021A GB1155170A GB1155170A GB1284021A GB 1284021 A GB1284021 A GB 1284021A GB 1155170 A GB1155170 A GB 1155170A GB 1155170 A GB1155170 A GB 1155170A GB 1284021 A GB1284021 A GB 1284021A
Authority
GB
United Kingdom
Prior art keywords
amplifier
output
modulators
input
resistors
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
GB1155170A
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.)
Siemens AG
Original Assignee
Siemens AG
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
Priority claimed from DE19691912609 external-priority patent/DE1912609C/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1284021A publication Critical patent/GB1284021A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/10—Intermediate station arrangements, e.g. for branching, for tapping-off
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H03F3/195—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only in integrated circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/04—Frequency-transposition arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)

Abstract

1284021 Multiplex systems SIEMENS AG 11 March 1970 [12 March 1969] 11551/70 Heading H4R The modulators of a carrier frequency converter are connected to the input or output of a common amplifier by respective resistors, the amplifier being provided with feedback to ensure a low input and output impedance, and low coupling between the modulators. As shown the modulators are connected to the amplifier M2 by resistors R11-R15 provided on a thick or thin film circuit assembly D2 together with other close tolerance components i.e. the output resistors R21-R23 and the amplifier feedback resistor Rp. A second thick or thin film assembly D1 is mounted on the first, D2, carrying wider tolerance components such as the input and output coupling capacitors C1 and C2. The amplifier comprises a monolithic integrated circuit M2 fed with power by a second monolithic integrated circuit M1, through which the operating power level of the circuit can be controlled.
GB1155170A 1969-03-12 1970-03-11 Improvements in or relating to carrier-frequency converters Expired GB1284021A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691912609 DE1912609C (en) 1969-03-12 Adaptation and decoupling arrangement for amplifiers with several pairs of input and / or output terminals

Publications (1)

Publication Number Publication Date
GB1284021A true GB1284021A (en) 1972-08-02

Family

ID=5727914

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1155170A Expired GB1284021A (en) 1969-03-12 1970-03-11 Improvements in or relating to carrier-frequency converters

Country Status (3)

Country Link
GB (1) GB1284021A (en)
NL (1) NL150289B (en)
SE (1) SE379131B (en)

Also Published As

Publication number Publication date
NL7002946A (en) 1970-09-15
NL150289B (en) 1976-07-15
DE1912609A1 (en) 1970-09-17
DE1912609B2 (en) 1972-08-31
SE379131B (en) 1975-09-22

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Legal Events

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