GB580977A - Improvements relating to directional radio transmitting or receiving systems - Google Patents

Improvements relating to directional radio transmitting or receiving systems

Info

Publication number
GB580977A
GB580977A GB1280742A GB1280742A GB580977A GB 580977 A GB580977 A GB 580977A GB 1280742 A GB1280742 A GB 1280742A GB 1280742 A GB1280742 A GB 1280742A GB 580977 A GB580977 A GB 580977A
Authority
GB
United Kingdom
Prior art keywords
antennμ
axis
radio transmitting
improvements relating
allows
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
GB1280742A
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.)
Sperry Gyroscope Co Ltd
Original Assignee
Sperry Gyroscope Co Ltd
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 Sperry Gyroscope Co Ltd filed Critical Sperry Gyroscope Co Ltd
Priority to GB1280742A priority Critical patent/GB580977A/en
Publication of GB580977A publication Critical patent/GB580977A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
    • H01Q3/04—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation
    • 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
    • H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
    • H01Q3/14—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying the relative position of primary active element and a refracting or diffracting device

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

580,977. Directive wireless signalling. SPERRY GYROSCOPE CO., Ltd., and NISBET, R. H. Dec. 8, 1941, No. 12807/42. Divided out of 580,975. [Class 40 (v)] An antenna arrangement for producing a rotating beam or for receiving from a variable direction comprises six dipoles 53 each arranged along the focal line of a parabolic reflector 52 mounted on a spider 51 rotatable about an axis 6. A fixed metallic screen 54 is formed with an aperture which allows radiation to be emitted or received only over a useful angle. The antennµ are connected to the transmitter or receiver in succession either by an electronic switch or by a capacity commutator (Fig. 2, not shown). This allows a quicker rate of scanning for a given rotational speed of the apparatus and may be used in the system of obstacle detection described in Specification 580,975. If desired, the units may be axially as well as angularly separated, in which case the antennµ may lie along the axis of rotation and only the reflectors need rotate.
GB1280742A 1941-12-08 1941-12-08 Improvements relating to directional radio transmitting or receiving systems Expired GB580977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1280742A GB580977A (en) 1941-12-08 1941-12-08 Improvements relating to directional radio transmitting or receiving systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1280742A GB580977A (en) 1941-12-08 1941-12-08 Improvements relating to directional radio transmitting or receiving systems

Publications (1)

Publication Number Publication Date
GB580977A true GB580977A (en) 1946-09-26

Family

ID=10011503

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1280742A Expired GB580977A (en) 1941-12-08 1941-12-08 Improvements relating to directional radio transmitting or receiving systems

Country Status (1)

Country Link
GB (1) GB580977A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122593B (en) * 1958-10-24 1962-01-25 Raytheon Mfg Co Microwave antenna with conical directional beam
DE977263C (en) * 1954-12-18 1965-08-12 Ernst Dr Schulze Pulse Doppler frequency radar method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977263C (en) * 1954-12-18 1965-08-12 Ernst Dr Schulze Pulse Doppler frequency radar method
DE1122593B (en) * 1958-10-24 1962-01-25 Raytheon Mfg Co Microwave antenna with conical directional beam

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