GB217060A - Improvements in electromagnetic wave signalling systems - Google Patents

Improvements in electromagnetic wave signalling systems

Info

Publication number
GB217060A
GB217060A GB1640323A GB1640323A GB217060A GB 217060 A GB217060 A GB 217060A GB 1640323 A GB1640323 A GB 1640323A GB 1640323 A GB1640323 A GB 1640323A GB 217060 A GB217060 A GB 217060A
Authority
GB
United Kingdom
Prior art keywords
aerial
coil
receiver
frame
circuit
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
GB1640323A
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.)
EMANUELE BOSELLI
Original Assignee
EMANUELE BOSELLI
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 EMANUELE BOSELLI filed Critical EMANUELE BOSELLI
Priority to GB1640323A priority Critical patent/GB217060A/en
Publication of GB217060A publication Critical patent/GB217060A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

217,060. Boselli, E. June 25, 1923. Aerials; duplex wireless signalling.-An aerial system which is electrically and geometrically symmetrical about a vertical axis is arranged to function as a frame or closed aerial for reception and as an open aerial for transmission. Fig. 2 shows a receiver R coupled to closed circuit C L<1> L<11> P and frame aerial circuit A - - F. The transmitter T is connected. to the aerial system at the point O such that the transmission currents in the coil ÀP will not affect the receiver R. Fig. 3 shows a coil P, the two halves of which are formed by winding on an insulating coil two wires with parallel convolutions with their ends connected together. In a modified arrangement, Fig. 4, the closed circuit associated with the frame aerial is dispensed with, and the receiver is coupled to the aerial circuit The differential coil D<1>, instead of being connected across the condenser C, may be connected to the ends; of the frames aerial so that the transmission currents do not flow in the primary coils P, P<1>. The aerial system may be a single convolution or two or more convolutions connected in parallel.
GB1640323A 1923-06-25 1923-06-25 Improvements in electromagnetic wave signalling systems Expired GB217060A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1640323A GB217060A (en) 1923-06-25 1923-06-25 Improvements in electromagnetic wave signalling systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1640323A GB217060A (en) 1923-06-25 1923-06-25 Improvements in electromagnetic wave signalling systems

Publications (1)

Publication Number Publication Date
GB217060A true GB217060A (en) 1924-06-12

Family

ID=10076690

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1640323A Expired GB217060A (en) 1923-06-25 1923-06-25 Improvements in electromagnetic wave signalling systems

Country Status (1)

Country Link
GB (1) GB217060A (en)

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