ES176095A1 - IMPROVEMENTS IN BROADCAST ANTENNA SYSTEMS - Google Patents

IMPROVEMENTS IN BROADCAST ANTENNA SYSTEMS

Info

Publication number
ES176095A1
ES176095A1 ES0176095A ES176095A ES176095A1 ES 176095 A1 ES176095 A1 ES 176095A1 ES 0176095 A ES0176095 A ES 0176095A ES 176095 A ES176095 A ES 176095A ES 176095 A1 ES176095 A1 ES 176095A1
Authority
ES
Spain
Prior art keywords
antenna systems
broadcast antenna
units
unit
essentially
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
ES0176095A
Other languages
Spanish (es)
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES176095A1 publication Critical patent/ES176095A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • 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)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Un sistema de antena que comprende por lo menos dos unidades de antena teniendo cada unidad una característica de transmisión para producir una característica de radiación esencialmente de forma torcidal que tiene esencialmente valor uniforme en un plano horizontal, estando cada una de dichas unidades separadas verticalmente de las siguiente unidad adyacente una distancia del orden de 200 a 400 grados eléctricos a la frecuencia de funcionamiento.An antenna system comprising at least two antenna units each unit having a transmitting characteristic to produce an essentially twisted-shaped radiation characteristic having essentially uniform value in a horizontal plane, each of said units being vertically spaced from each other. next adjacent unit a distance on the order of 200 to 400 electrical degrees at the operating frequency.

ES0176095A 1940-09-25 1946-12-14 IMPROVEMENTS IN BROADCAST ANTENNA SYSTEMS Expired ES176095A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1455740A GB577853A (en) 1940-09-25 1940-09-25 Means for overcoming the effects of earth reflections in directional antenna systems

Publications (1)

Publication Number Publication Date
ES176095A1 true ES176095A1 (en) 1947-01-16

Family

ID=10043382

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0176095A Expired ES176095A1 (en) 1940-09-25 1946-12-14 IMPROVEMENTS IN BROADCAST ANTENNA SYSTEMS

Country Status (4)

Country Link
BE (1) BE471723A (en)
ES (1) ES176095A1 (en)
FR (1) FR931309A (en)
GB (1) GB577853A (en)

Also Published As

Publication number Publication date
BE471723A (en)
GB577853A (en) 1946-06-04
FR931309A (en) 1948-02-19

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