GB842351A - Directive aerial - Google Patents

Directive aerial

Info

Publication number
GB842351A
GB842351A GB28109/55A GB2810955A GB842351A GB 842351 A GB842351 A GB 842351A GB 28109/55 A GB28109/55 A GB 28109/55A GB 2810955 A GB2810955 A GB 2810955A GB 842351 A GB842351 A GB 842351A
Authority
GB
United Kingdom
Prior art keywords
radiator
produced
reflector
waveguide
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
GB28109/55A
Inventor
Cornelis Augustinus Va Staaden
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.)
Thales Nederland BV
Original Assignee
Thales Nederland BV
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 BE551006D priority Critical patent/BE551006A/xx
Priority to NL202486D priority patent/NL202486A/xx
Application filed by Thales Nederland BV filed Critical Thales Nederland BV
Priority to GB28109/55A priority patent/GB842351A/en
Priority to DEI11724A priority patent/DE1063278B/en
Priority to CH344106D priority patent/CH344106A/en
Priority to US613466A priority patent/US2991473A/en
Priority to FR1163088D priority patent/FR1163088A/en
Publication of GB842351A publication Critical patent/GB842351A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/002—Pulse counters comprising counting chains; Frequency dividers comprising counting chains using semiconductor devices
    • 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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
    • H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body
    • H01L27/08—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including only semiconductor components of a single kind
    • H01L27/0817—Thyristors only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H01Q15/22—Reflecting surfaces; Equivalent structures functioning also as polarisation filter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/18—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces
    • H01Q19/19—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface
    • H01Q19/195—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface wherein a reflecting surface acts also as a polarisation filter or a polarising device
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/35—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar semiconductor devices with more than two PN junctions, or more than three electrodes, or more than one electrode connected to the same conductivity region

Abstract

842,351. Directive aerial systems. HOLLANDSE SIGNAALAPPARATER N. V. Sept. 19, 1956 [Oct. 3, 1955], No. 28109/55. Class 40(7). A directive aerial system capable of producing beams of two different shapes and of performing two different types of scanning motions comprises two electromagnetic wave radiators 105 and 107 producing respectively, beams of the required shape polarized at right angles to one another the radiators being positioned with respect to an auxiliary reflector 106 (situated at the focus of a beam concentrating device such as a reflector 101) which transmits waves having the polarization produced by the radiator 107, and reflects waves having the polarization produced by radiator 105 by producing a visual image of the latter also situated at the focus, so that with either radiator in use a narrow beam is produced by the system without the need for changing radiators such that each is physiccally situated at the focus. To reduce energy losses caused by the radiator 105 (and its waveguide feed 104) being in the field of radiator 107 and in its own reflected field, the arrangement shown in Fig. 3, in which the auxiliary reflector 306 is inclined to the axis of the reflector 301 and the radiator 305 positioned outside the produced beam, may be employed. The scanning motions produced by the system are (1) a conical "pencil beam" scan produced by eccentrically rotating radiator 107 (307) about the axis of reflector 101 (301) and (2) a linear scan with a "beaver tail" beam produced by causing the waveguide feed 104 (304) and radiator 105 (305) to swing about an axis parallel to the broad side of the beam by supplying guide 104 (304) from a fixed waveguide 302 via a hinged waveguide joint 303 (Fig. 3) which, in the construction of Fig. 1, is situated on the side of reflector 101 which is remote from radiator 105 (Fig. 2 not shown). Such scanning results in a variation of the terminating impedance of the waveguide and to avoid this the auxiliary reflector 406 (506) may be supported and carried by the swinging waveguide 404 (504) as shown in Figs. 4 and 5, or as shown in Fig. 6 in which the portions of the radiators 605 and 607 are received, the polarization effect of the auxiliary reflector 606 being also received. Instead of employing movement of the radiators to produce the scans, the latter may be fixed and the required scans produced by suitable movement of the auxiliary reflector. A constructional form of beam concentrating device consisting of two sets of mutually perpendicular conductors having an overlapping common area is described with reference to Fig. 7 (not shown). Specifications 753,038 and 753,039 are referred to.
GB28109/55A 1955-10-03 1955-10-03 Directive aerial Expired GB842351A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE551006D BE551006A (en) 1955-10-03
NL202486D NL202486A (en) 1955-10-03
GB28109/55A GB842351A (en) 1955-10-03 1955-10-03 Directive aerial
DEI11724A DE1063278B (en) 1955-10-03 1956-05-24 Flat transistor with ring-shaped base electrode
CH344106D CH344106A (en) 1955-10-03 1956-10-02 Directional antenna
US613466A US2991473A (en) 1955-10-03 1956-10-02 Scanning antenna system for horizontally and vertically polarized waves
FR1163088D FR1163088A (en) 1955-10-03 1956-10-03 Directional effect antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28109/55A GB842351A (en) 1955-10-03 1955-10-03 Directive aerial

Publications (1)

Publication Number Publication Date
GB842351A true GB842351A (en) 1960-07-27

Family

ID=10270412

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28109/55A Expired GB842351A (en) 1955-10-03 1955-10-03 Directive aerial

Country Status (7)

Country Link
US (1) US2991473A (en)
BE (1) BE551006A (en)
CH (1) CH344106A (en)
DE (1) DE1063278B (en)
FR (1) FR1163088A (en)
GB (1) GB842351A (en)
NL (1) NL202486A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1196794C2 (en) * 1960-03-26 1966-04-07 Telefunken Patent Semiconductor component with a disk-shaped semiconductor body, in particular transistor, and method for manufacturing
US3209355A (en) * 1962-12-20 1965-09-28 Radiation Inc Dual operating mode circuit
US3858213A (en) * 1965-10-18 1974-12-31 Us Air Force Antenna with short line tuning stub
US3403394A (en) * 1966-07-19 1968-09-24 Gen Electric Diversity radar system
US3898667A (en) * 1974-02-06 1975-08-05 Rca Corp Compact frequency reuse antenna
DE2454401A1 (en) * 1974-11-16 1976-05-20 Licentia Gmbh SMALL BROADBAND ANTENNA
US4010472A (en) * 1975-11-14 1977-03-01 Westinghouse Electric Corporation Antenna scanning apparatus
FR2445040A1 (en) * 1978-12-22 1980-07-18 Thomson Csf CONICAL SCANNING ANTENNA FOR RADAR, ESPECIALLY TRACKING RADAR
FR2568062B1 (en) * 1984-07-17 1986-11-07 Thomson Alcatel Espace BIFREQUENCY ANTENNA WITH SAME CROSS-POLARIZATION ZONE COVERAGE FOR TELECOMMUNICATIONS SATELLITES
CN111226352B (en) * 2017-08-29 2021-05-11 弗拉迪米尔·叶夫根尼耶维奇·歌申宗 Antenna for receiving data from low earth orbit satellite and method for receiving data through the antenna

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522562A (en) * 1945-04-21 1950-09-19 Rca Corp Antenna system
US2680810A (en) * 1952-02-12 1954-06-08 Us Army Microwave antenna system
FR1098286A (en) * 1953-03-06 1955-07-21 Marconi Wireless Telegraph Co Multi-beam aerial systems enhancements
GB743533A (en) * 1953-03-06 1956-01-18 Marconi Wireless Telegraph Co Improvements in or relating to multiple beam aerial arrangements

Also Published As

Publication number Publication date
BE551006A (en)
DE1063278B (en) 1959-08-13
US2991473A (en) 1961-07-04
FR1163088A (en) 1958-09-22
CH344106A (en) 1960-01-31
NL202486A (en)

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