Electrical signal separating device having isolating and matchin

Details Electrical signal separating device having isolating and matchin Electrical signal separating device having isolating and matchin

1987-03-18

1990-02-20

Hille, Rolf

Communications: radio wave antennas

Antennas

With ice clearer or preventer

343713, 343861, 455291, H01Q 102, H01Q 132

Patent

active

049030353

ABSTRACT:
The present invention provides within three particular aspects thereof an isolating and matching device operable to enable an electrically heatable window of a motor vehicle to be used as an efficient VHF communications aerial or antenna; wherein isolating and matching circuitry is provided for Series VHF Matching, Shunt VHF Matching and Split Passband Matching of an electrically heatable window heating element to an aerial input impedance of an aerial feeder circuit of a radio frequency receiver or transmit/receive device.

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