Design of compact helical antenna at 200 MHz

  title={Design of compact helical antenna at 200 MHz},
  author={Markus Nyffeler and D. V. Giri},
  journal={2011 International Conference on Electromagnetics in Advanced Applications},
The objective of this paper is to design a compact helical antenna at a frequency of 200 MHz, with prescribed volume constraints. The antenna has to have a reasonable gain (say 5 or 7 dB) and also fit in a cylindrical volume of about 25 cm in diameter with a length of about 1 m. The radiated fields will be circularly polarized. If we think of a standard helical antenna operating in an axial mode, the major diameter would be about 50 cm, and the spacing between turns would be about 30 cm, and… CONTINUE READING


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