Enhanced Ultra-Wideband (UWB) Circular Monopole Antenna with Electromagnetic Band Gap (EBG) Surface and Director

Abstract

A circular monopole antenna fed with a coplanar waveguide is designed as an ultra-wideband (UWB) antenna for ground-penetrating radar. The performance of the antenna is enhanced by adding an electromagnetic band gap (EBG) surface on one side and a monopole director on the other side. The EBG surface can be a single-resonance structure or dual or multi-resonance structure for wider bandwidth. The enhanced design shows higher and flatter gain across the wideband, with different levels of improvements, depending on the choice of the additional layers, which also impacts the overall profile of the antenna. Simulation results of a number of designs are presented, along with measurement results of one design. Comparison of measured and simulated results is presented and shows good agreement. The target frequency band for the design is 0.7 3.0 GHz.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2014
Accession Number
ADA608706

Entities

People

  • Amir I. Zaghloul
  • Gregory A. Mitchell
  • Theodore K. Anthony
  • Youn M. Lee

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Sensors

DTIC Thesaurus Topics

  • Agreements
  • Antenna Apertures
  • Antennas
  • Band Gaps
  • Bandwidth
  • Energy Bands
  • Frequency
  • Frequency Bands
  • Measurement
  • Monopole Antennas
  • Radiation
  • Radiation Patterns
  • Radio Frequency
  • Reflectors
  • Simulations
  • Three Dimensional
  • Waveguides

Readers

  • Microwave Engineering.
  • Phased Array Antenna Design.