Communications: radio wave antennas – Antennas – With ice clearer or preventer
Patent
1989-01-24
1989-09-12
Sikes, William L.
Communications: radio wave antennas
Antennas
With ice clearer or preventer
H01Q 102
Patent
active
048664529
ABSTRACT:
A dish antenna for receiving or transmitting signals, e.g. via a satellite, is heated by means of radiant heat from an electrical heater located behind the antenna and spaced apart therefrom. This keeps the antenna free from ice and snow and minimizes distortion. The heater is preferably a self-regulating sheet heater comprising a PTC conductive polymer.
REFERENCES:
patent: 2679003 (1954-05-01), Dyke et al.
patent: 2679004 (1954-05-01), Dyke et al.
patent: 3805017 (1974-04-01), Roberts et al.
patent: 4304987 (1981-12-01), van Konynenburg
Barma Pradeep
Chan Chi-Ming
Burkard Herbert G.
Raychem Corporation
Richardson Timothy H. P.
Sikes William L.
Wise Robert E.
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