D. H. Schaubert, F. G. Farrar, A. Sindoris and S. T. Hayes, “Microstrip Antennas with Frequency Agility and Polarization Diversity,” IEEE Transactions on Antennas Propagation, Vol. 29, No. 1, January 1981, pp. 118-23. doi:10.1109/TAP.1981.1142546

has been cited by the following article:

• TITLE: Analysis of Input Impedance of Asymmetrically Loaded Annular Ring Antenna

  AUTHORS: Madhurika Mahajan, Tapas Chakarvarty, Sunil Kumar Khah

  KEYWORDS: Loaded Microstrip Antenna, Cavity Model, Feed Point, Input Impedance, Return Loss

  JOURNAL NAME: Journal of Electromagnetic Analysis and Applications, Vol.3 No.3, March 24, 2011

  ABSTRACT: In this communication the numerical modelling for input impedance of an annular ring antenna is done. The cavity model is used for the analysis and the post is loaded asymmetrically at a point from the centre of the ring. The numeri-cal model formed is verified with the results of IE3D model based on method of moments. The loading of antenna can be used to design broadband antennas by enhancing the bandwidth of antennas.