GB538458A - Improvements in frame antennae - Google Patents

Improvements in frame antennae

Info

Publication number
GB538458A
GB538458A GB5871/40A GB587140A GB538458A GB 538458 A GB538458 A GB 538458A GB 5871/40 A GB5871/40 A GB 5871/40A GB 587140 A GB587140 A GB 587140A GB 538458 A GB538458 A GB 538458A
Authority
GB
United Kingdom
Prior art keywords
turns
electric fields
turn
groups
loop
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
GB5871/40A
Other languages
English (en)
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.)
Mullard Radio Valve Co Ltd
Original Assignee
Mullard Radio Valve 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 Mullard Radio Valve Co Ltd filed Critical Mullard Radio Valve Co Ltd
Publication of GB538458A publication Critical patent/GB538458A/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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/04—Details
    • G01S3/08—Means for reducing polarisation errors, e.g. by use of Adcock or spaced loop antenna systems
    • G01S3/085—Means for reducing polarisation errors, e.g. by use of Adcock or spaced loop antenna systems by using spaced loop aerial systems
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/04—Details
    • G01S3/06—Means for increasing effective directivity, e.g. by combining signals having differently oriented directivity characteristics or by sharpening the envelope waveform of the signal derived from a rotating or oscillating beam antenna

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)
GB5871/40A 1939-04-04 1940-04-01 Improvements in frame antennae Expired GB538458A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL538458X 1939-04-04

Publications (1)

Publication Number Publication Date
GB538458A true GB538458A (en) 1941-08-05

Family

ID=19787235

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5871/40A Expired GB538458A (en) 1939-04-04 1940-04-01 Improvements in frame antennae

Country Status (4)

Country Link
BE (1) BE438561A (instruction)
FR (1) FR864610A (instruction)
GB (1) GB538458A (instruction)
NL (1) NL57014C (instruction)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602138A (en) * 1948-11-06 1952-07-01 Canady Don Antenna

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602138A (en) * 1948-11-06 1952-07-01 Canady Don Antenna

Also Published As

Publication number Publication date
BE438561A (instruction)
FR864610A (fr) 1941-05-01
NL57014C (instruction)

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