GB654224A - Improvements relating to apparatus for the directional propagation or reception of electromagnetic waves - Google Patents

Improvements relating to apparatus for the directional propagation or reception of electromagnetic waves

Info

Publication number
GB654224A
GB654224A GB1533243A GB1533243A GB654224A GB 654224 A GB654224 A GB 654224A GB 1533243 A GB1533243 A GB 1533243A GB 1533243 A GB1533243 A GB 1533243A GB 654224 A GB654224 A GB 654224A
Authority
GB
United Kingdom
Prior art keywords
wavelength
reception
electromagnetic waves
improvements relating
shaped
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
GB1533243A
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.)
Leland Stanford Junior University
Original Assignee
Leland Stanford Junior University
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 Leland Stanford Junior University filed Critical Leland Stanford Junior University
Priority to GB1533243A priority Critical patent/GB654224A/en
Publication of GB654224A publication Critical patent/GB654224A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Waveguides (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

654,224. Aerials. STEVENS, A. H. (Leland Stanford Junior University, Board of Trustees of). Sept. 10, 1941, No. 15332/43. Divided out of 654,221. [Class 40 (vii)] A fan - shaped - beam projector or receiver for use in the system described in Specification 654,221 comprises a resonant chamber 41 of cylindrical form excited by one or more loops 43 or dipoles 44 and having a slot 42 (or series of apertures) which is long compared with a wavelength. The device is rotatable about trunnions 45. A pencil-shaped-beam projector for use in the same system comprises a similarly-excited chamber of rectangular-box form, Fig. 2 (not shown), having in one face holes, a fraction of a wavelength in diameter and arranged in a circle of diameter large compared with a wavelength.
GB1533243A 1941-09-10 1941-09-10 Improvements relating to apparatus for the directional propagation or reception of electromagnetic waves Expired GB654224A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1533243A GB654224A (en) 1941-09-10 1941-09-10 Improvements relating to apparatus for the directional propagation or reception of electromagnetic waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1533243A GB654224A (en) 1941-09-10 1941-09-10 Improvements relating to apparatus for the directional propagation or reception of electromagnetic waves

Publications (1)

Publication Number Publication Date
GB654224A true GB654224A (en) 1951-06-13

Family

ID=10057226

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1533243A Expired GB654224A (en) 1941-09-10 1941-09-10 Improvements relating to apparatus for the directional propagation or reception of electromagnetic waves

Country Status (1)

Country Link
GB (1) GB654224A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4037091A1 (en) * 1990-11-22 1992-05-27 Leybold Ag DEVICE FOR GENERATING A REGULAR MICROWAVE FIELD

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4037091A1 (en) * 1990-11-22 1992-05-27 Leybold Ag DEVICE FOR GENERATING A REGULAR MICROWAVE FIELD
US5173640A (en) * 1990-11-22 1992-12-22 Leybold Aktiengesellschaft Apparatus for the production of a regular microwave field

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