Communications: radio wave antennas – Antennas – With ice clearer or preventer
Patent
1991-01-25
1992-11-17
Hille, Rolf
Communications: radio wave antennas
Antennas
With ice clearer or preventer
343713, 455273, H01Q 102
Patent
active
051650576
ABSTRACT:
A radio receiver antenna system for overcoming multiple path propagation fading, includes an antenna arrangement which provides respectively at two terminals in response to a given transmitted signal, two signals at the frequency of the transmitted signal as are respectively produced by two antennas having different reception characteristics. A combining circuit is operative for producing an output at the frequency of the transmitted signal by combining the signals produced at said terminals in such manner that the output is significant for substantially all values of the relative phase of the two signals. The combining circuit includes an inductive winding to opposite ends of which the two signals are respectively applied. An output is derived from a tapping point on the winding or from a second winding, inductively coupled to said first-mentioned winding. A first output is preferably derived from a tapping point on the first-mentioned winding.
REFERENCES:
patent: 4761826 (1988-08-01), Kropielnicki et al.
Hille Rolf
Le Hoang-anh
The General Electric Company p.l.c.
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