Communications: directive radio wave systems and devices (e.g. – Directive – Including directive communication system
Patent
1985-06-11
1987-11-03
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including directive communication system
333 21R, 343786, H04B 724
Patent
active
047046112
ABSTRACT:
A directive antenna (for a groundstation or a satellite) has a plurality of discrete receptional states which provide predetermined electronic displacements from boresight of the optimum direction of reception. The direction of the target is obtained by rapid switching from one receptional mode to another. The receptional modes are preferably provided by switchable mode converters, e.g. 6A, 6B, 7A and 7B, which are coupled with the waveguide so as to convert higher order propagation modes, e.g. TM01, TE21(H) and TE21(V), to the fundamental.
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Edwards David J.
Watson Barry K.
Blum Theodore M.
British Telecommunications public limited company
Gregory Bernarr Earl
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