GB605523A - Improvements relating to super-regenerative radio receivers of the type associated with transmitting means - Google Patents

Improvements relating to super-regenerative radio receivers of the type associated with transmitting means

Info

Publication number
GB605523A
GB605523A GB35039/45A GB3503945A GB605523A GB 605523 A GB605523 A GB 605523A GB 35039/45 A GB35039/45 A GB 35039/45A GB 3503945 A GB3503945 A GB 3503945A GB 605523 A GB605523 A GB 605523A
Authority
GB
United Kingdom
Prior art keywords
valve
transmitting
super
rectified
diode
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
GB35039/45A
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.)
Ferranti International PLC
Original Assignee
Ferranti PLC
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 to NL79489D priority Critical patent/NL79489C/xx
Priority to NL71621D priority patent/NL71621C/xx
Priority to BE468956D priority patent/BE468956A/xx
Priority to GB4156/43A priority patent/GB585347A/en
Priority to GB15239/43A priority patent/GB585353A/en
Priority to GB6604/45A priority patent/GB591965A/en
Priority claimed from GB12809/45A external-priority patent/GB591802A/en
Priority to GB12809/45A priority patent/GB591802A/en
Priority to GB29285/45A priority patent/GB598398A/en
Priority to GB29288/45A priority patent/GB598400A/en
Priority to GB29289/45A priority patent/GB598401A/en
Priority to GB29284/45A priority patent/GB603901A/en
Priority to GB29287/45A priority patent/GB604239A/en
Priority to GB29286/45A priority patent/GB598399A/en
Priority to GB32486/45A priority patent/GB604717A/en
Priority claimed from GB32486/45A external-priority patent/GB604717A/en
Application filed by Ferranti PLC filed Critical Ferranti PLC
Priority to GB4787/46A priority patent/GB608103A/en
Priority claimed from GB4787/46A external-priority patent/GB608103A/en
Priority claimed from GB8251/46A external-priority patent/GB609576A/en
Priority to GB8251/46A priority patent/GB609576A/en
Priority to CH271003D priority patent/CH271003A/en
Priority to CH267424D priority patent/CH267424A/en
Priority to CH270289D priority patent/CH270289A/en
Priority to US692084A priority patent/US2657306A/en
Priority to FR942850D priority patent/FR942850A/en
Priority to FR932678D priority patent/FR932678A/en
Priority to FR941719D priority patent/FR941719A/en
Priority to BE468321A priority patent/BE468321A/fr
Priority to BE468320A priority patent/BE468320A/fr
Priority to BE468837A priority patent/BE468837A/fr
Priority to US760563A priority patent/US2524491A/en
Priority to US760960A priority patent/US2524495A/en
Priority to US762731A priority patent/US2524492A/en
Priority to US762730A priority patent/US2617020A/en
Priority to US762736A priority patent/US2552914A/en
Priority to US762734A priority patent/US2524494A/en
Priority to US762733A priority patent/US2524493A/en
Priority to US762732A priority patent/US2576495A/en
Priority to US766392A priority patent/US2541558A/en
Publication of GB605523A publication Critical patent/GB605523A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/767—Responders; Transponders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D11/00—Super-regenerative demodulator circuits
    • H03D11/02—Super-regenerative demodulator circuits for amplitude-modulated oscillations

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

605,523. Radio signalling. FERRANTI, Ltd., WOOD, H., DAVIES, R..H., and WHITEHEAD, J. R. Dec. 28, 1945, No. 35039. [Class 40 (v)] A responder for use with a pulsed interrogating signal comprises separate transmitting and super-regenerative receiving valves having a common oscillatory circuit connected between their control-grids and anodes, but with independent cathode circuits, with means for maintaining the sensitivity of the receiving valve substantially constant during operation. Interrogating pulses from aerial coil 5 are amplified super-regeneratively by valve combination 1, 7, rectified by diode 22 and amplified by pentode 27 for application to the pulse lengthening circuit 39, 41, associated with cathode follower 34. The lengthened positive pulse from network 39, 41 raises the cut-off bias on transmitting valve 15, causing it to oscillate violently and re-transmit a response signal. Use of separate cathode circuits enables the time constant for the receiving valve to be reduced to allow rapid recovery without impairing pulse lengthening at the transmitting valve, while the common tuned circuit combines with blocking capacitors 13, 13<1> to protect the transmitting valve from quench frequency oscillations. During intervals between reception, amplification of random fluctuations in valve stage 1 produce periods of oscillation which are also rectified by diode 22, and the quench frequency component is rejected in tuned circuit 60, 61. The random voltage component is rectified by diode 65 and smoothed by filter 74, 70, 76 for application as a negative bias on receiving valve 1. A change in sensitivity during sweeping of capacitor 6a results in a change in noise level which gives rise to a correcting bias on the receiver valve 1. Specification 591,965 is referred to.
GB35039/45A 1943-03-13 1945-12-28 Improvements relating to super-regenerative radio receivers of the type associated with transmitting means Expired GB605523A (en)

Priority Applications (35)

Application Number Priority Date Filing Date Title
NL79489D NL79489C (en) 1943-03-13
NL71621D NL71621C (en) 1943-03-13
BE468956D BE468956A (en) 1943-03-13
GB4156/43A GB585347A (en) 1943-03-13 1943-03-13 Improvements in or relating to wireless signalling systems
GB15239/43A GB585353A (en) 1943-03-13 1943-03-13 Improvements in or relating to super-regenerative radio receiving circuit arrangements
GB6604/45A GB591965A (en) 1943-03-13 1945-03-15 Improvements relating to super-regenerative radio receivers
GB12809/45A GB591802A (en) 1943-03-13 1945-05-22 Improvements relating to switching means either for allowing a plurality of cyclically-operative thermionic systems to operate singly in a pre-determined order or for allowing the interrupted operation of only a specific one of them
GB29284/45A GB603901A (en) 1943-03-13 1945-11-05 Improvements relating to thermionic valve systems
GB29286/45A GB598399A (en) 1943-03-13 1945-11-05 Improvements relating to super-regenerative radio receivers of the type associated with transmitting means
GB29288/45A GB598400A (en) 1943-03-13 1945-11-05 Improvements relating to super-regenerative radio receivers of the type associated with transmitting means
GB29289/45A GB598401A (en) 1943-03-13 1945-11-05 Improvements relating to super-regenerative radio receivers of the type associated with transmitting means
GB29285/45A GB598398A (en) 1943-03-13 1945-11-05 Improvements relating to super-regenerative radio receivers of the type associated with transmitting means
GB29287/45A GB604239A (en) 1943-03-13 1945-11-05 Improvements relating to thermionic valve systems
GB32486/45A GB604717A (en) 1943-03-13 1945-11-30 Improvements relating to super-regenerative receivers
GB4787/46A GB608103A (en) 1943-03-13 1946-02-15 Improvements relating to super-regenerative radio receivers of the type associated with transmitting means
GB8251/46A GB609576A (en) 1943-03-13 1946-03-16 Improvements relating to super-regenerative radio receivers
CH267424D CH267424A (en) 1943-03-13 1946-05-21 Wireless signaling device with a question station and an automatic answering station.
CH271003D CH271003A (en) 1943-03-13 1946-05-21 Radio receiver with a pendulum feedback stage.
CH270289D CH270289A (en) 1943-03-13 1946-05-22 Device with at least two circuit units provided with electron tubes and periodically operating switching means, by means of which each of these circuit units is allocated successively predetermined time intervals as operating periods.
US692084A US2657306A (en) 1943-03-13 1946-08-21 Radio receiving circuit arrangement
FR942850D FR942850A (en) 1943-03-13 1946-08-23 Improvements to thermo-ionic lamp devices
FR932678D FR932678A (en) 1943-03-13 1946-08-23 Wireless transmission devices and apparatus used in such devices
FR941719D FR941719A (en) 1943-03-13 1946-08-23 Improvements to super-reaction radio receivers
BE468321A BE468321A (en) 1943-03-13 1946-10-05
BE468320A BE468320A (en) 1943-03-13 1946-10-05
BE468837A BE468837A (en) 1943-03-13 1946-10-29
US760563A US2524491A (en) 1943-03-13 1947-07-12 Wave-signal responder system
US760960A US2524495A (en) 1943-03-13 1947-07-15 Wave-signal responder system
US762731A US2524492A (en) 1943-03-13 1947-07-22 Wave-signal responder system
US762732A US2576495A (en) 1943-03-13 1947-07-22 Wave-signal responder system
US762733A US2524493A (en) 1943-03-13 1947-07-22 Wave-signal responder system
US762734A US2524494A (en) 1943-03-13 1947-07-22 Wave-signal responder system
US762736A US2552914A (en) 1943-03-13 1947-07-22 Superregenerative wave-signal receiver
US762730A US2617020A (en) 1943-03-13 1947-07-22 Superregenerative type of wavesignal translating system
US766392A US2541558A (en) 1943-03-13 1947-08-05 Control arrangement for thermionic valve systems

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
GB267424X 1943-03-13
GB2617020X 1945-03-15
GB12809/45A GB591802A (en) 1943-03-13 1945-05-22 Improvements relating to switching means either for allowing a plurality of cyclically-operative thermionic systems to operate singly in a pre-determined order or for allowing the interrupted operation of only a specific one of them
GB2524491X 1945-11-05
GB2524492X 1945-11-05
GB32486/45A GB604717A (en) 1943-03-13 1945-11-30 Improvements relating to super-regenerative receivers
GB4787/46A GB608103A (en) 1943-03-13 1946-02-15 Improvements relating to super-regenerative radio receivers of the type associated with transmitting means
GB8251/46A GB609576A (en) 1943-03-13 1946-03-16 Improvements relating to super-regenerative radio receivers

Publications (1)

Publication Number Publication Date
GB605523A true GB605523A (en) 1948-07-26

Family

ID=32303901

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35039/45A Expired GB605523A (en) 1943-03-13 1945-12-28 Improvements relating to super-regenerative radio receivers of the type associated with transmitting means

Country Status (1)

Country Link
GB (1) GB605523A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472312A1 (en) * 1979-12-15 1981-06-26 Matsushita Electric Works Ltd RECEIVER WITH SUPERACTION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472312A1 (en) * 1979-12-15 1981-06-26 Matsushita Electric Works Ltd RECEIVER WITH SUPERACTION

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