Reconfigurable Front-end Antennas for Cognitive Radio Applications

Abstract

This study presents new antenna schemes suitable for cognitive radio communications. The antenna structures consist of a ultra wide band (UWB) sensing antenna, and a frequency reconfigurable communicating antenna both incorporated into the same substrate. Two different techniques to achieve the required frequency agility are proposed. The first one is based on a rotational motion of the radiating patch whereas the second is based on optical switching. The importance of these techniques is that no bias lines are needed as is seen in the case of RF MEMs, PIN diodes and lumped elements. Prototype antennas were fabricated and a good agreement was observed between the simulated and the measured data.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2011
Accession Number
ADA560500

Entities

People

  • Christos G. Christodoulou
  • G. El-howayek
  • K. Avery
  • M. Bkassiny
  • S. K. Jayaweera
  • Y. Tawk

Organizations

  • University of New Mexico

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Cognitive Radio
  • Communication Systems
  • Diodes
  • Engineering
  • Field Programmable Gate Arrays
  • Frequency
  • Frequency Bands
  • Laser Diodes
  • Pin Diodes
  • Prototypes
  • Radiation
  • Radiation Patterns
  • Radio Communications
  • Semiconductors
  • Switching
  • Wireless Communications
  • Wireless Networks

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Integrated Circuit Design and Technology.
  • Radar Systems Engineering.