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Explanation of DC/RF Loci for Active Patch Antennas

  • Nazar T. Ali
  • Abubakar Sadiq Hussaini
  • Raed Abd-Alhameed
  • Neil J. McEwan
  • Mark B. Child
  • E. A. El-Khazmi
  • Jonathan Rodriguez
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 77)

Abstract

A characteristic loop locus of dc power versus RF output power was observed as the frequency was varied around the optimum point of an operational active antenna. A new technique was introduced into the simulation, plotting the dependence of parameters such as supply current, efficiency or output power on internal impedance as seen by the naked transistor. It is now clear that the loop was formed as a consequence of the interaction of the transistor packaging elements with the patch impedances.

Keywords

Active antenna power amplifier DC and RF power patch antenna 

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References

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Copyright information

© ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering 2012

Authors and Affiliations

  • Nazar T. Ali
    • 1
  • Abubakar Sadiq Hussaini
    • 2
  • Raed Abd-Alhameed
    • 3
  • Neil J. McEwan
    • 3
  • Mark B. Child
    • 3
  • E. A. El-Khazmi
    • 3
  • Jonathan Rodriguez
    • 2
  1. 1.Khalifa UniversitySharjahUnited Arab Emirates
  2. 2.Instituto de TelecomunicaçõesAveiroPortugal
  3. 3.Mobile & Satellite Communications Research CentreUniversity of BradfordBradfordUnited Kingdom

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