GB1338636A - High frequency directional apparatus - Google Patents

High frequency directional apparatus

Info

Publication number
GB1338636A
GB1338636A GB1874271*[A GB1874271A GB1338636A GB 1338636 A GB1338636 A GB 1338636A GB 1874271 A GB1874271 A GB 1874271A GB 1338636 A GB1338636 A GB 1338636A
Authority
GB
United Kingdom
Prior art keywords
fed
oscillator
oscillators
lockable
radiators
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
GB1874271*[A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB1338636A publication Critical patent/GB1338636A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B9/00—Generation of oscillations using transit-time effects
    • H03B9/12—Generation of oscillations using transit-time effects using solid state devices, e.g. Gunn-effect devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
    • H01Q3/42—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means using frequency-mixing

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

1338636 Aerials; semi-conductor oscillator circuits WESTERN ELECTRIC CO Inc 3 June 1971 [9 June 1970] 18742/71 Headings H4A and H3T A linear array is constituted by radiators 11 to 14, the first of which is fed by an R.F. source 20 of angular frequency #, and the others of which are fed by respective oscillators 21 to 23 which have natural frequencies different from # (e.g., # + ##) but are lockable to that frequency. Means are provided whereby a locking signal for each oscillator is derived from the signal fed to the radiator preceding the radiator fed by said oscillator. As described, each radiator is fed through a respective circulator 25, 27, 29, 31 and a proportion of the signal fed to the radiators 11, 12, 13 is sampled by means of respective directional couplers 26, 28, 30 and is applied through the circulators 27, 29, 31 as a locking signal to the oscillators 21, 22, 23. A phase difference # between successive radiators, which determines the direction of the wavefront from the array, is dependent upon the bias current I(#+##) to the oscillators 21, 22, 23. Scanning may be accomplished either by varying said bias current or by varying the frequency control current I# to the R.F. source 20. If a greater range of phase difference between adjacent radiators than that obtainable from one lockable oscillator is required, two lockable oscillators with their associated circulators in series may be provided (Fig. 2A, not shown). A lockable oscillator may comprise an IMPATT diode 35, Fig. 4, which is biased into its negative resistance region by a source 34 having a decoupling capacitor 39. An inductor 36 forms an oscillatory circuit with the capacitance of the diode. The load is represented by a resistor 37 which is transformed by a decoupling capacitor 38 to match the negative resistance of the diode.
GB1874271*[A 1970-06-09 1971-06-03 High frequency directional apparatus Expired GB1338636A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4471670A 1970-06-09 1970-06-09

Publications (1)

Publication Number Publication Date
GB1338636A true GB1338636A (en) 1973-11-28

Family

ID=21933932

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1874271*[A Expired GB1338636A (en) 1970-06-09 1971-06-03 High frequency directional apparatus

Country Status (7)

Country Link
US (1) US3653046A (en)
JP (1) JPS5434307B1 (en)
BE (1) BE768189A (en)
DE (1) DE2128660A1 (en)
FR (1) FR2094145B1 (en)
GB (1) GB1338636A (en)
SE (1) SE370293B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3832713A (en) * 1973-03-01 1974-08-27 Us Navy Microwave phase shifting apparatus
US4092616A (en) * 1976-11-22 1978-05-30 General Dynamics Corporation Electronics Division Traveling wave power combining apparatus
US4394660A (en) * 1980-12-18 1983-07-19 Eaton Corporation Phased array feed system
US4755829A (en) * 1987-02-20 1988-07-05 The United States Of America As Represented By The Secretary Of The Navy Space power combiner
EP2070155A4 (en) * 2006-10-03 2013-04-03 Beam Networks Ltd Phased shifted oscilator and antenna
IL186186A0 (en) * 2006-10-03 2008-01-20 Alberto Milano Communication system and method using an active phased array antenna
ES2384836B1 (en) * 2009-09-01 2013-05-20 Fundacio Privada Centre Tecnologic De Telecomunicacions De Catalunya REFLECTARRAY TYPE ANTENNA SYSTEM.
US10644649B2 (en) * 2017-06-09 2020-05-05 Chromodynamics Ii Llc Oscillating frequency wave grid generator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3153788A (en) * 1961-04-26 1964-10-20 Philco Corp Directional signal radiation system
US3128430A (en) * 1962-01-09 1964-04-07 Sanders Associates Inc Phase shifting system for phased antenna arrays
US3518671A (en) * 1966-10-31 1970-06-30 Ryan Aeronautical Co Electronically scannable phase array receiver
US3427620A (en) * 1966-10-31 1969-02-11 Ryan Aeronautical Co Electronically scanned integrated antenna system
US3573651A (en) * 1968-12-11 1971-04-06 Bell Telephone Labor Inc Locked oscillator arrangement

Also Published As

Publication number Publication date
FR2094145B1 (en) 1977-01-21
US3653046A (en) 1972-03-28
FR2094145A1 (en) 1972-02-04
DE2128660A1 (en) 1971-12-16
BE768189A (en) 1971-11-03
JPS5434307B1 (en) 1979-10-25
SE370293B (en) 1974-10-07

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Legal Events

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