ANTENNA WITH VARIABLE GEOMETRY

ANTENNA WITH VARIABLE GEOMETRY

The invention concerns antennae whose dimensions can be modified so as to modify their radioelectric characteristics. The antenna comprises aligned conductor sections (11, 12) coupled by switching means (2) with remote control by electrically insulating connecting means transparent to radioelectric...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: REBERNAK, WILLIAM, NGO BUI HUNG, FREDERIC, KRETSCHMER, SYLVAIN
Format: Patent
Sprache:eng ; fre
Schlagworte:
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
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Beschreibung
Zusammenfassung:The invention concerns antennae whose dimensions can be modified so as to modify their radioelectric characteristics. The antenna comprises aligned conductor sections (11, 12) coupled by switching means (2) with remote control by electrically insulating connecting means transparent to radioelectric waves. The switching means are selected on the basis of their capacity for supporting high power or high voltage. One method consists in sending the command through optic fibres (F1, F2) so that they reach a relay (R) via photovoltaic cells (21, 22) located near this relay. The invention is mainly applicable to antennae operating on frequencies lower than 1 GHz.