Two-Degree-of-Freedom Linear and Planar Mircowave Array Lenses,

Abstract

A new design of beamforming lens is presented. Both faces are planar arrays of microwave or millimeter wave antenna elements, interconnected by transmission lines (as in a 'bootlace' lens) whose length vary as a function of radius. While the front face elements are regularly space, the back face elements are displaced radially from their corresponding front face elements, the amount of displacement also being a function of radius. Such a lens is shown to be capable of forming low sidelobe pencil beams over a solid angle of + or - 25 deg or more by switching between clusters of only seven feed elements. Because both faces are planar, construction of extremely lightweight lenses for large-aperture and/or multiple-beam antennas is feasible. Keywords include: Microwave lens, Lens antennas, Multiple-beam antennas, Electronically scanned antenna, and Low sidelobe antennas.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1984
Accession Number
ADA153701

Entities

People

  • D. T. Mcgrath

Organizations

  • Rome Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Cyber

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Antenna Radiation Patterns
  • Antennas
  • Classification
  • Construction
  • Displacement
  • Geometric Forms
  • Geometry
  • Lens Antennas
  • Millimeter Wave Antennas
  • Millimeter Waves
  • Multiple Beam Antennas
  • Security
  • Sidelobes
  • Transmission Lines
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Phased Array Antenna Design.

Technology Areas

  • 5G
  • Microelectronics
  • Space