Performance Evaluation of a Half-Wave Resonant Slot Antenna Over Perfect Ground Using NEC (Numerical Electromagnetic Code).

Abstract

Present and future trends in shipboard antenna designs have as an objective, antennas which are or will be survivable in combat environments, integrable in ship's superstructures, low in profile and compact. This thesis investigates the performance characteristics of a 7 by 0.2 meter slot antenna, which is cut into a rectangular bulkhead, the bulkhead being a section of the superstructure of an average ship. This slot antenna was modeled using the Numerical Electromagnetic Code. Input impedances, radiation patterns and near fields inside the slot are presented. The reason for conducting this performance evaluation is to determine if this approach to survivable antennas is feasible enough to be implemented in future ship designs.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1987
Accession Number
ADA184004

Entities

People

  • Constantinos Theofanopoulos

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Antennas
  • Bulkheads
  • Electric Fields
  • Electrical Engineering
  • Electromagnetic Fields
  • Engineering
  • Environment
  • Frequency
  • Impedance
  • Integral Equations
  • Near Field
  • Radiation
  • Radiation Patterns
  • Schools
  • Ship Design
  • Superstructures
  • Transmission Lines

Fields of Study

  • Physics

Readers

  • Aerospace Test and Evaluation
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Naval Architecture and Marine Engineering.