American Journal of Electromagnetics and Applications

Volume 3, Issue 6, November 2015

  • Miniaturized Ultra Wideband Microstrip Antenna Based on a Modified Koch Snowflake Geometry for Wireless Applications

    Hafid Tizyi, Abdellah Najid, Fatima Riouch, Abdelwahed Tribak, Angel Mediavilla

    Issue: Volume 3, Issue 6, November 2015
    Pages: 38-42
    Received: 6 September 2015
    Accepted: 22 September 2015
    Published: 15 October 2015
    DOI: 10.11648/j.ajea.20150306.11
    Abstract: This paper presents a compact micro-strip patch antenna for ultra wideband (UWB) applications using a Koch Snowflake fractal radiating antenna. The antenna supports two ultra widebands. For the lower band, a good impedance bandwidth of 6.55GHz has been achieved from 3.4892GHz to 10.0392GHz. While the upper band covers 5.4976GHz (from 10.9013GHz to ... Show More
  • Mathematical Electrodynamics: Groups, Cohomology Classes, Unitary Representations, Orbits and Integral Transforms in Electro-Physics

    Francisco Bulnes

    Issue: Volume 3, Issue 6, November 2015
    Pages: 43-52
    Received: 24 September 2015
    Accepted: 7 October 2015
    Published: 19 October 2015
    DOI: 10.11648/j.ajea.20150306.12
    Abstract: Through consider applications of the (, K)- modules as £- modules to the Lie groups SL(2, R), SU(2), SO(4), U(4, R), SU(2, 2), SO(4, R), SU(p, q), and Sp(n, K), the evaluating of integrals on equivariant and invariant holomorphic vector bundles under the action of these groups, are created and developed electromagnetic models of the space-time with... Show More
  • New Compact Pentagonal Microstrip Patch Antenna for Wireless Communications Applications

    Raad H. Thaher, Saif Nadhim Alsaidy

    Issue: Volume 3, Issue 6, November 2015
    Pages: 53-64
    Received: 15 November 2015
    Accepted: 22 November 2015
    Published: 10 December 2015
    DOI: 10.11648/j.ajea.20150306.13
    Abstract: In this paper, a study of new design of pentagonal microstrip patch antenna for wireless communications applications. The proposed antenna has regular pentagonal patch (provide dual bands (2.6-7.5) GHz, (8.7-20) GHz) which is modified to irregular shape with the same area to obtain better characteristics from bandwidth and gain point of view and of... Show More