US1658740A - Radio receiving system - Google Patents

Radio receiving system Download PDF

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Publication number
US1658740A
US1658740A US602426A US60242622A US1658740A US 1658740 A US1658740 A US 1658740A US 602426 A US602426 A US 602426A US 60242622 A US60242622 A US 60242622A US 1658740 A US1658740 A US 1658740A
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US
United States
Prior art keywords
antennae
currents
antenna
receiving
phase
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 - Lifetime
Application number
US602426A
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English (en)
Inventor
Chester W Rice
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to US602426A priority Critical patent/US1658740A/en
Priority to FR30524D priority patent/FR30524E/fr
Priority to GB29414/23A priority patent/GB207535A/en
Application granted granted Critical
Publication of US1658740A publication Critical patent/US1658740A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
    • B61L3/125—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves using short-range radio transmission
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/30—Time-delay networks

Definitions

  • My present invention relates to radio receiving systems and more particularly to systems for obtaining a high degree of selectivity in reception.
  • Antenna length 2, ⁇ , area 81 per cent.
  • the relative areas of the directive curves may then be as follows:
  • receiving antennae As will be shown in the description that follows there are numerous other forms of receiving antennae which may be combined in various ways to produce correspondingly sharper directive curves than can be obtained with a single antenna.
  • I will refer to the wave antenna as an end on receiver since .it receives signals with maximum intensity when pointing toward the transmitter, and
  • I will refer to the arrangement consisting of a row of antennae placed perpendicular to the signal direction as a broadside receiver since it normally receives signals with a maximum intensity When a signal strikes the various elements simultaneously.
  • Fig. 1 is a diagrammatic representation of a receiving system employing three-wave antennae
  • Figs. 2 and 3 are diagrams illustrating the operation of such a. receiver
  • Figs. 4', 5 and 6 are directive curves illustrating the increase in directivity which may be obtained by employing two or three parallel wave antennae
  • Figs. 7 and 8 are diagrammatic representations of other antenna arrangements which may be employed to obtain similar results to that which may be obtained with the arrangement of Fig. 1.
  • Fig. 1 I have shown three-wave antennae 1, 9. and 3, each of which points in the general direction of the signal which it is desired to receive.
  • the ends 13,, B B of theseantennae are provided with the usual reflection transformers R R R to permit of the reception at the ends A A A of signals traveling in the direction from A to 13,.
  • At the ends A A A there are pro vided output transformers T, T T 8,, S S as indicated, for supplying signaling and compensating currents to the balancedtransmission lines L L L M M M by means of which the desired currents are transmitted to the receiving station.
  • Damping resistances C may be inserted across the transmission lines to Prevent undesired flections.
  • I have provided at the receiving station artificial lines N N N 0 O 0 or other time or phase adjusting circuits to which the currents conveyed over the transmission lines are supplied by a series of transformers 4, 5, 6, 7, 8 and 9. Currents from the artificial lines are supplied by means of intensity couplers I,, I 1,, K K K to the input circuits of the coupling tubes 10, 11 and 12.
  • the output circuits of the coupling tubes 10, 11and12 are connected-through trans formers 13, 14 and 15 to'artificial lines P P P and current may be supplied'from these artificial lines through intensity couplers V ,,V V 'to the input circuit of a combining tube 16.
  • Current may be supplied from the output circuit of this tube 16 tothe tuned circuit 17 from-which the'desired signaling current is Supplied to the receiver 18.
  • the vacuum tubes indicated will be connected in the usual manner, part of the connections havin been omitted from the drawing for 1 the purpose of simplification.
  • the sliding connections .19, 20, 21, 22, 23 and 24' on the artificial lines are first adjusted for each of the wave antennae to give the best signal reception from that antenna alone.
  • the sliders 25, 26. and 27 onsimultaneously and sets up like currents in.
  • the signaling currents are conveyed over the transmisslon lines and finally appear as variations in the plate currents of the several coupling tubes 10, 11 and 12. In general, the currents will not arrive simultaneously or in .phasein the plate circuits of these coupling tubes since the different antennae will be at'ditferent distances from the receiving station.
  • the different currents may-bebrought in phase so thattheir efiects add directly in the secondaries of the intensity couplers V V V and therefore their. efiects are added in combining tube 16. For the case a single unit.
  • the various antennae in this arrangement are: conveyed tothe recelvlng station over thetransmission lines L L5, I1 M M M- as in the arrangement shown n Fig. 1. -The same station apparatus may be employed for any of these alternative] antennae systems and the procedure of adjustmentand operation will'be the same for,
  • Fi 7 may equally well be employed for multip le x reception of signals all of which'come from one direction or part from one direction and part from the opposite direction, it being necessary in this case to provide additional sliders 28 to 33, inclusive, for securing the necessary phase adjustments, and a duplicate set of coupling tubes, combining tube and intensity couplers for each separate sig nal which is to be received.
  • I have considered only a broad side row made up of a number of separate units spaced an appreciable traction of a Wave length apart perpendicular to the signal direction, for example, or more.
  • Another convenient arrangement whereby highly directive results may be obtained is to use two multiple tuned or infinite velocity antennae spaced apart one back of the other.
  • This method of producing a unidirectional broadside receiver is illustrated in Fig. 8.
  • Antennae 37, 38 are of the multiple tuned type and therefore adjusted so that the currents in all of the down leads are in phase.
  • An antenna of this type is the equivalent of'a plurality of static antennae connected by an infinite velocity transmission line.
  • Transmission lines L and L convey the signals from each antenna to the receiving station where the phase and intensity adjusting apparatus N N and 1 I is located.
  • the effects of the desired signaling currents are then combined in series on the grid of the combining tube 39 and the receiving set 18 is supplied through the tuned circuit 17 from the plate circuit of the combining tube.
  • One of these antennae alone consists of a highly directive bidirectional broadside receiver.
  • the combination of the currents from two such units one placed behind the other so that the wave impulses coming from the direction opposite the arrow of Fig. 8 will cancel while the signal coming in the direction of the arrow will not cancel results in a highly directive unidirectional broadside receiver.
  • the method of combining currents from difierent units employed in this case is the equivalent of that indicated in the system illustrated in Fig.
  • the first combination is made of currents from a r w extending in the direction of the signal and the second combination is made or currents from a plurality of such rows or the first combination is made of currents from a row extending at a right angle to the signal direction and the second combination is made of currents from a plurality of such rows.
  • plin'g tubes currents of adjusted phase and intensity.
  • combining'tube means forimpressingnupon i i the input circuit of said combining tubecur-c rents of adjusted phase and intensity from the output, circuits of all of the coupling tubes, and a receiving apparatus associate wfth thebutput circuit ofthe combining tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Near-Field Transmission Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
US602426A 1922-11-21 1922-11-21 Radio receiving system Expired - Lifetime US1658740A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US602426A US1658740A (en) 1922-11-21 1922-11-21 Radio receiving system
FR30524D FR30524E (fr) 1922-11-21 1923-11-16 Perfectionnements aux postes radio-récepteurs
GB29414/23A GB207535A (en) 1922-11-21 1923-11-21 Improvements in radio receiving systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US602426A US1658740A (en) 1922-11-21 1922-11-21 Radio receiving system

Publications (1)

Publication Number Publication Date
US1658740A true US1658740A (en) 1928-02-07

Family

ID=24411302

Family Applications (1)

Application Number Title Priority Date Filing Date
US602426A Expired - Lifetime US1658740A (en) 1922-11-21 1922-11-21 Radio receiving system

Country Status (3)

Country Link
US (1) US1658740A (fr)
FR (1) FR30524E (fr)
GB (1) GB207535A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423085A (en) * 1943-03-05 1947-07-01 Standard Telephones Cables Ltd Delay device
US2467857A (en) * 1943-08-12 1949-04-19 Gen Electric Adjustable delay line
US2725533A (en) * 1941-01-28 1955-11-29 Wilmer L Barrow Bridge circuit embodying artificial transmission lines
US4906006A (en) * 1989-04-28 1990-03-06 Phil Sigunick Practice golf device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725533A (en) * 1941-01-28 1955-11-29 Wilmer L Barrow Bridge circuit embodying artificial transmission lines
US2423085A (en) * 1943-03-05 1947-07-01 Standard Telephones Cables Ltd Delay device
US2467857A (en) * 1943-08-12 1949-04-19 Gen Electric Adjustable delay line
US4906006A (en) * 1989-04-28 1990-03-06 Phil Sigunick Practice golf device

Also Published As

Publication number Publication date
FR30524E (fr) 1926-07-18
GB207535A (en) 1924-04-03

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