Sidelobe Modulation in Far-Field Radiation Patterns.

Abstract

In this research, the following problem is addressed: How can low sidelobes in the distant electric field or power pattern be achieved via time-modulation of the element values in a linear phased array? Time-modulation of the N array element values can result in far-field patterns whose sidelobes are severely modulated. This procedure can produce sidelobes which on the average are very low. In this research, ON/OFF switchings are programmed in a predetermined sequence to produce a specified far-field pattern with equal and ultra-low sidelobe levels. In addition, the mainbeam of the far-field pattern is kept fairly fixed. A FORTRAN program is developed to produce ON and OFF times for this modulation scheme, given a specific value of array length (N) and a desired sidelobe level (PK).

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1982
Accession Number
ADA118611

Entities

People

  • Gene Moriarty

Organizations

  • San José State University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Antenna Arrays
  • Antennas
  • Arrays
  • Electric Fields
  • Electrical Engineering
  • Engineering
  • Equations
  • Far Field
  • Linear Arrays
  • New York
  • Phased Arrays
  • Polynomials
  • Radiation
  • Radiation Patterns
  • Scientific Research
  • Time Signals

Fields of Study

  • Physics

Readers

  • Phased Array Antenna Design.