Stealth Antennas and Radomes

Stealth Antennas and Radomes

For access to this article, please select a purchase option:

Buy chapter PDF
(plus tax if applicable)
Buy Knowledge Pack
10 chapters for £75.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
Introduction to RF Stealth — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

The purpose of Chapter 6 is to summarize the results of antenna and radome technology that are of particular interest for antenna stealth. Shape is everything when it comes to both the active and passive signatures of antennas and radomes. Once the shape is right, then such things as element pattern, amplitude weighting, thickness, and edge treatment become important. First, the relationship between the radiation pattern (beamwidth, sidelobes, and so forth) and the current distribution across the antenna aperture is discussed. This is followed by descriptions of the various types of antennas that have been applied to radar and data links, including reflectors, lenses, and arrays. Several methods of pattern synthesis are discussed. The effect of broadband signals and errors in the aperture distribution on the radiation and radar cross section (RCS) patterns is considered. Both the active and passive signatures of antennas and radomes will be covered. The chapter closes with brief discussions of radome and antenna near field interaction.

Chapter Contents:

  • 6.1 Introduction
  • 6.2 Antenna Parameters
  • 6.2.1 Fundamental Definitions
  • 6.2.2 Antenna Radiation Pattern and Aperture Distribution
  • 6.3 Single Radiators
  • 6.3.1 The Electric Dipole
  • 6.3.2 The Magnetic Dipole or Small Loop
  • 6.3.3 Slot Radiators
  • 6.3.4 Small Rectangular Slot in Infinite Ground Plane
  • Near Half-Wave Radiating Slot in Infinite Ground Plane
  • Slot Near Field
  • 6.3.7 Broadband Radiators
  • 6.4 Antenna Arrays
  • 6.4.1 Simple Apertures
  • 6.4.2 Sidelobe Reduction Functions
  • 6.4.3 Error-Induced Antenna Pattern Degradation
  • 6.4.4 Arrays of Elements
  • 6.5 Electronically Scanned Arrays
  • 6.5.1 Single-Beam Antennas
  • 6.5.2 Multibeam Antennas
  • 6.6 Antenna Scattering
  • 6.6.1 Basic Notions
  • 6.6.2 Estimating Antenna RCS
  • 6.6.3 Estimating Errors Resulting from Circuit Variations
  • 6.7 Low-RCS Radomes
  • 6.7.1 Introduction
  • 6.7.2 Antenna and Radome Integration
  • 6.7.3 General Formulas
  • 6.7.4 Composite Radomes
  • 6.7.5 Thick Frequency Selective Layers
  • 6.7.6 Edge Treatment
  • 6.7.7 Coordinate Rotations
  • 6.7.8 Radome and Antenna RCS
  • 6.8 Exercises
  • 6.9 References

Inspec keywords: broadband antennas; aperture antennas; radar cross-sections; reflectarray antennas; lens antennas; current distribution; radar antennas; antenna radiation patterns; radomes

Other keywords: current distribution; lens antenna; edge treatment; active signature; radiation pattern; pattern synthesis; element pattern; data link; reflector antenna; broadband signal effect; RCS; radome technology; passive signature; amplitude weighting; radar antenna; antenna near field interaction; aperture distribution; radar cross section pattern; stealth antenna; antenna aperture

Subjects: Antenna accessories; Radar equipment, systems and applications; Antenna arrays

Preview this chapter:
Zoom in

Stealth Antennas and Radomes, Page 1 of 2

| /docserver/preview/fulltext/books/ra/sbra120e/SBRA120E_ch6-1.gif /docserver/preview/fulltext/books/ra/sbra120e/SBRA120E_ch6-2.gif

Related content

This is a required field
Please enter a valid email address