COVER

A passive radio repeater is built into a cover for a pit, in order to relay radio signals between a base station and a wireless communications device such as a water meter at the bottom of the pit. Within the external surface (41, 48) of the lid are provided upper and lower patch antennas (42, 47)....

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	FITCH, Michael, PUTLAND, Paul
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS ELECTRICITY
Online-Zugang:	Volltext bestellen
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