GB1510150A - Electrically controllable attenuators for vhf circuits - Google Patents

Electrically controllable attenuators for vhf circuits

Info

Publication number
GB1510150A
GB1510150A GB18364/75A GB1836475A GB1510150A GB 1510150 A GB1510150 A GB 1510150A GB 18364/75 A GB18364/75 A GB 18364/75A GB 1836475 A GB1836475 A GB 1836475A GB 1510150 A GB1510150 A GB 1510150A
Authority
GB
United Kingdom
Prior art keywords
impedance
attenuator
line transformer
line
electrically controllable
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
GB18364/75A
Other languages
English (en)
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
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1510150A publication Critical patent/GB1510150A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/24—Frequency- independent attenuators
    • H03H7/25—Frequency- independent attenuators comprising an element controlled by an electric or magnetic variable
    • H03H7/253—Frequency- independent attenuators comprising an element controlled by an electric or magnetic variable the element being a diode
    • H03H7/255—Frequency- independent attenuators comprising an element controlled by an electric or magnetic variable the element being a diode the element being a PIN diode
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/88—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms six-membered rings with three ring hetero atoms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/22—Attenuating devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/0052—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using diodes
    • H03G1/0058—PIN-diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/24—Frequency- independent attenuators

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Dentistry (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Agronomy & Crop Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Attenuators (AREA)
  • Non-Reversible Transmitting Devices (AREA)
  • Control Of Amplification And Gain Control (AREA)
GB18364/75A 1974-05-10 1975-05-02 Electrically controllable attenuators for vhf circuits Expired GB1510150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2422843A DE2422843C3 (de) 1974-05-10 1974-05-10 Regelbares Dampfungsglied für insbesondere kurze elektromagnetische Wellen

Publications (1)

Publication Number Publication Date
GB1510150A true GB1510150A (en) 1978-05-10

Family

ID=5915256

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18364/75A Expired GB1510150A (en) 1974-05-10 1975-05-02 Electrically controllable attenuators for vhf circuits

Country Status (16)

Country Link
JP (1) JPS5535009B2 (fi)
AR (1) AR203915A1 (fi)
AT (2) AT349064B (fi)
BE (1) BE828889A (fi)
BR (1) BR7502878A (fi)
CH (1) CH576726A5 (fi)
DE (1) DE2422843C3 (fi)
DK (1) DK205675A (fi)
FR (1) FR2270687B1 (fi)
GB (1) GB1510150A (fi)
IE (1) IE41291B1 (fi)
IN (1) IN142563B (fi)
IT (1) IT1037829B (fi)
LU (1) LU72421A1 (fi)
NL (1) NL7505565A (fi)
SE (1) SE400434B (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3842425C1 (en) * 1988-12-16 1989-11-23 Ant Nachrichtentechnik Gmbh, 7150 Backnang, De Method and device for the temperature compensation of an attenuator
DE4115599C2 (de) * 1991-05-14 1994-03-24 Ant Nachrichtentech Dämpfungsglied

Also Published As

Publication number Publication date
BR7502878A (pt) 1976-03-16
IE41291B1 (en) 1979-12-05
IN142563B (fi) 1977-07-30
JPS5535009B2 (fi) 1980-09-11
DK205675A (da) 1975-11-11
JPS50156346A (fi) 1975-12-17
LU72421A1 (fi) 1975-08-26
AT349064B (de) 1979-03-26
DE2422843C3 (de) 1978-09-21
AR203915A1 (es) 1975-10-31
NL7505565A (nl) 1975-11-12
SE7505316L (sv) 1975-11-11
CH576726A5 (fi) 1976-06-15
ATA310076A (de) 1978-04-15
DE2422843B2 (de) 1978-02-09
ATA347175A (de) 1978-08-15
FR2270687B1 (fi) 1978-02-03
SE400434B (sv) 1978-03-20
DE2422843A1 (de) 1975-11-13
FR2270687A1 (fi) 1975-12-05
AU8100175A (en) 1976-11-11
AT347175B (de) 1978-08-15
BE828889A (fr) 1975-11-10
IE41291L (en) 1975-11-10
IT1037829B (it) 1979-11-20

Similar Documents

Publication Publication Date Title
GB517342A (en) Improvements in or relating to antennas
US3048798A (en) Directional coupler
GB1510150A (en) Electrically controllable attenuators for vhf circuits
US2925566A (en) Broad band balun transformer
GB763641A (en) Improvements in or relating to electric attenuators
GB698509A (en) Improvements in or relating to filters and the like for use on very high frequencies
DE3373396D1 (en) Remote powering coupler for a line terminal arrangement in an analogous or digital information transmission system
US2502766A (en) Circuit arrangement for the transmission of ultra high frequency electrical oscillations
GB700871A (en) Improvements in or relating to bandpass electrical filter circuits for use at high frequencies
JPH039363Y2 (fi)
JPS5528616A (en) Drive system for transmission line
JPS6295002A (ja) ミリ波終端器
GB612741A (en) Improvements in and relating to ultra high-frequency circuits
VALTONEN A new synthesis method for branch-guide directional couplers(Network synthesis for narrowband branch-guide directional coupling circuits)
JPH0251914A (ja) 信号と電力の同時伝送回路
NO892592D0 (no) Retningskobler og avgrening for fellesantenne- og kabelfordelingsanlegg.
GB982149A (en) Crystal diode holder on a strip transmission line
GB1034925A (en) Improvements in or relating to bridge circuit arrangements
GB659811A (en) Improvements in and relating to electric filter circuits
JPS57201005A (en) Impedance converter
GB592097A (en) Improvements in switches for high frequency electrical oscillations
GB1185494A (en) Improvements in or relating to Filter Networks
GB1068157A (en) Improvements in or relating to radio sets
GB863108A (en) Improvements in or relating to transformers
GB710112A (en) Improvements in or relating to electrical attenuators

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee