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DE1566985C - Logarithmic-periodic omnidirectional antenna with dipoles arranged along a vertical axis - Google Patents

Logarithmic-periodic omnidirectional antenna with dipoles arranged along a vertical axis

Info

Publication number
DE1566985C
DE1566985C DE1566985C DE 1566985 C DE1566985 C DE 1566985C DE 1566985 C DE1566985 C DE 1566985C
Authority
DE
Germany
Prior art keywords
dipoles
logarithmic
antenna
periodic
earth
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
Other languages
German (de)
Inventor
Hans-Jürgen 6800 Mannheim. GOIs 9-50 Gassner
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.)
BBC Brown Boveri AG Germany
Original Assignee
BBC Brown Boveri AG Germany
Publication date

Links

Description

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (4)

Patentansprüche:Patent claims: 1. Rundstrahlantenne mit einer Anzahl von Dipolen, die mit ihren Mitten längs einer lotrechten Achse angeordnet, dort von einem Mast getragen und von einer in der Mittelachse verlaufenden Leitung gespeist sind und deren Längen und gegenseitige Abstände gemäß einer logarithmisch-periodischen Funktion bemessen sind, wobei der kürzeste Dipol am erdnächsten und der längste Dipol am erdfernsten ist, dadurch gekennzeichnet, daß die Hälften der einzelnen Dipole einen Winkel von 90° einschließen, die einander entsprechenden Hälften unterschiedlicher Dipole jeweils in einer vertikalen Ebene liegen und auch ihre außenliegenden Enden an Tragmasten (3, 5) befestigt sind.1. Omnidirectional antenna with a number of dipoles, which with their centers along a perpendicular Axis arranged, carried there by a mast and one extending in the central axis Line are fed and their lengths and mutual distances measured according to a logarithmic-periodic function where the shortest dipole is closest to the earth and the longest dipole is furthest away from the earth, thereby characterized in that the halves of the individual dipoles enclose an angle of 90 °, the corresponding halves of different dipoles each in a vertical Lie level and their outer ends are attached to pylons (3, 5). 2. Antenne nach Anspruch 1, dadurch gekennzeichnet, daß wenigstens fünf und höchstens zwanzig Dipolhälften übereinander angeordnet sind.2. Antenna according to claim 1, characterized in that at least five and at most twenty dipole halves are arranged one above the other. 3. Antenne nach Anspruch 1 und 2, dadurch gekennzeichnet, daß als Speiseleitung eine erdsymmetrische Leitung (24) vorgesehen ist.3. Antenna according to claim 1 and 2, characterized in that the feed line is a symmetrical earth Line (24) is provided. 4. Antenne nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß unterhalb der Antenne ein engmaschiges Erdungsnetz (23) angeordnet ist.4. Antenna according to claim 1 to 3, characterized in that a below the antenna close-meshed grounding network (23) is arranged.

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