NDLI: HF broadband antenna design considerations on warships

Content Provider	IEEE Xplore Digital Library
Author	Jagannath, T. Kulkarni, P.P. Tyagi, V.M.
Copyright Year	1999
Description	Author affiliation: Naval EMC Centre, Mumbai, India (Jagannath, T.)
Abstract	In view of the expected EM interaction of the metallic super structure of the ship with that of the physical elements which form the HF antenna, design analysis carried out in isolation with just the equipment and antenna cannot be implemented onboard. However basic limitations imposed on the performance of MF/HF antennae by the ship's structures can be overcome by coordinating the design of the antennae with the ship's super structure by way of carrying out scale model measurement in the preliminary and detailed design stages of the ship building activity. The number of communication circuits required to satisfy the operational commitments of shipboard HF communication system have increased to such a degree that it is not possible to install tuned HF monopole antennas for each circuit as in the case of tuned 35 feet whips presently being deployed onboard warships. It is therefore relevant that in order to overcome the problem of lack of real estate and the avoidable mutual coupling, the necessary design, analysis and measurements be incorporated in the ship design and building process to provide broadband antennae. The authors focus attention on the practical design considerations that go into the design of a lower band HF frequency broadband wire antenna onboard a typical warship. They also touch upon scale model measurements and the design and evaluation of the requisite antenna matching network.
Starting Page	421
Ending Page	428
File Size	522770
Page Count	8
File Format	PDF
ISBN	8190065203
DOI	10.1109/ICEMIC.1997.669842
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-12-08
Access Restriction	Subscribed
Rights Holder	Society of EMC Engineers
Subject Keyword	Broadband antennas Hafnium Marine vehicles Antenna measurements Buildings Tuned circuits Mutual coupling Process design Frequency Wire
Content Type	Text
Resource Type	Article

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