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1. (WO1998049748) STACKED PATCH ANTENNA WITH FREQUENCY BAND ISOLATION

Pub. No.:    WO/1998/049748    International Application No.:    PCT/US1998/008040
Publication Date: Fri Nov 06 00:59:59 CET 1998 International Filing Date: Thu Apr 23 01:59:59 CEST 1998
IPC: H01Q 1/42
H01Q 9/04
Applicants: THE WHITAKER CORPORATION
Inventors: KELLERMAN, Francis, W.
HARNED, William, H.
MULLINS, Richard, A.
Title: STACKED PATCH ANTENNA WITH FREQUENCY BAND ISOLATION
Abstract:
A stacked patch antenna (1) has a coaxial feed (9) feeding a first patch element (2), and a second feed (9) feeding a second patch element (3), the coaxial feed (9) connecting to null points for the respective patch elements (2, 3), and a portion of the first patch element (2) connecting the coaxial feed (9) to a natural feed point for the first patch element (2).