04030100 is referenced by 23 patents and cites 2 patents.

An IFF antenna is disposed symmetrically about a vertical axis. A power divider and a pair of transmission lines are provided to symmetrically feed the IFF antenna. A GPS antenna is disposed coaxially of the vertical axis and above the IFF antenna. A gap is provided between the top of the IFF antenna and the bottom of the GPS antenna having a predetermined width. A three wire balun is disposed coaxially of the vertical axis and within the IFF antenna to feed the GPS antenna and a conductive shield is disposed coaxially of the vertical axis surrounding the three wire balun and interconnecting the IFF antenna and the GPS antenna for isolation therebetween.

Title
Multipurpose submarine antenna
Application Number
5/655812
Publication Number
4030100
Application Date
February 6, 1976
Publication Date
June 14, 1977
Inventor
Emmanual Joseph Perrotti
Ramsey
NJ, US
Agent
Alfred C Hill
John T O Halloran
Assignee
International Telephone and Telegraph Corporation
NJ, US
IPC
H01Q 1/36
H01Q 1/34
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