Accession Number : AD0470819


Title :   PATTERN HANDBOOK. VOLUME 6: FAR-FIELD PATTERNS OF A LINEAR ANTENNA ADIATING IN THE PRESENCE OF CIRCULAR CYLINDERS


Corporate Author : OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS ANTENNA LAB


Personal Author(s) : Brenner, C H


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/470819.pdf


Report Date : 01 Aug 1965


Pagination or Media Count : 62


Abstract : The prediction of fields radiated by shipboard antennas is complicated by the presence of parasitically excited superstructure which warps and deteriorates the far-field patterns. This handbook has beem compiled, giving patterns of a thin, linear, vertical antenna radiating in the presence of cylindrical conducting structures of various cross-sectional shape. The model used to approximate this confi7uration is that of an infinite line source, representing the dipole, radiating in the presence of an array of thin, infinite wires parallel to each other and outlining the surface of the offending cylindrical structure. Only offending structures up to 2 wavelengths on a side are considered. It has been found from sample calculations that patterns for objects larger than 2 wavelengths on a side do not differ radically from those for the largest objects presented in this handbook. The computer program used to calculate the patterns in this handbook is an automated version of the SCATRAN program.


Descriptors :   *HANDBOOKS , *ANTENNA RADIATION PATTERNS , *DIPOLE ANTENNAS , COMPUTER PROGRAMMING , ELECTROMAGNETIC WAVE REFLECTIONS , SHIP ANTENNAS , SHIP STRUCTURAL COMPONENTS


Subject Categories : Radiofrequency Wave Propagation


Distribution Statement : APPROVED FOR PUBLIC RELEASE