Full Pattern Analysis and Comparison of the Center Fed and Offset Fed Cassegrain Antennas with Large Focal Length to Diameter Ratios for High Power Microwave Transmission

Abstract

High power microwaves (HPM) have been a topic of research since the Cold War era. This paper presents a comparison between two Cassegrain-type antennas: the axially, or center fed, and the offset fed. Specifically, the 10 GHz operating frequency is investigated with large focal length to diameter (F/D) ratios. Beam patterns which encompass the entire radiation pattern are included for data validation and optimization. The simulations follow a factorial model of design to ensure all possible combinations of prescribed parameters are included. This includes an analysis of variance (ANOVA) study to find parameter influence on the outputs of interest. Outputs such as maximum gain, beamwidth, and sidelobe levels and locations are of interest. Research in this area will greatly enhance the readers understanding of the benefits and disadvantages of the two antennas mentioned.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2022
Accession Number
AD1177675

Entities

People

  • Derek W. Mantzke
  • Joseph Q. Public

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Analysis Of Variance
  • Antennas
  • Cassegrain Antennas
  • Coordinate Systems
  • Data Sets
  • Diameters
  • Directed Energy Weapons
  • Electromagnetic Wave Propagation
  • Experimental Design
  • Frequency
  • Geometry
  • High Power Microwaves
  • Materials
  • Physical Theories
  • Radiation
  • Radiation Patterns
  • Simulations
  • Spreadsheet Software
  • Students
  • Weapon Systems

Fields of Study

  • Physics

Readers

  • Phased Array Antenna Design.
  • Regression Analysis.

Technology Areas

  • Directed Energy