TURNSTILE ANTENNA

antenna equipment, radio transmitting, specifically, TV stations. SUBSTANCE: turnstile antennas has two perpendicular active dipoles with length 0,5lambda energized with phase shift equal to 90 deg and four passive dipoles with length (0,51-0,53)lambda each. Passive dipoles are positioned above and...

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Bibliographische Detailangaben
Hauptverfasser:	DMITRIEV A.V, ANDREEV JU.A, DAGUROV P.N
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS ELECTRICITY
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	antenna equipment, radio transmitting, specifically, TV stations. SUBSTANCE: turnstile antennas has two perpendicular active dipoles with length 0,5lambda energized with phase shift equal to 90 deg and four passive dipoles with length (0,51-0,53)lambda each. Passive dipoles are positioned above and under each active dipole at distance (0,5-0,6)lambda from them. Such arrangement of dipoles according to numerical calculations supported by experimental data results in growth of antenna gain factor in direction of radiation maximum by 3.0-4.0 dB as compared with prototype and level of upward and downward side radiation diminishes by 5.0 dB as minimum. EFFECT: raised gain factor and diminished side radiation of turnstile antenna without any change of its directional pattern in horizontal plane. 3 dwg