Title: Radio navigation beacon

Abstract: A Doppler Navigation Beacon incorporating the moving reference concept in a planar antenna matrix with programmed excitation, replacing the linear commutated array of the prior art to provide vertical diversity for azimuth guidance use and horizontal diversity for vertical guidance use. A pencil-beam effect is obtained without change of signal format or receiving station processing. Technique applicable to Doppler type navigation (landing) systems and to direction finding generally.

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Inventors: Earp, Charles W. (London, EN)

Application Number: 597369
Filing Date: 1975-07-21
Publication_date: 1977-04-12
Assignee: International Standard Electric Corporation (New York, NY)
Primary Class(es): 342/405
Other Classes:
US Patent Ref:

3226718	Dec, 1965	Earp	343/106.
3798645	Mar, 1974	Baurle et al.	343/108.
3852753	Dec, 1974	Blakemore	343/113.
3953854	Apr, 1976	Overbury	343/106.

Other Refs:
Primary Examiner: Wilbur, Maynard R.
Assistant Examiner: Berger, Richard E.
Attorney: O'Neil; William T.