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Example: Conical Antenna

Example: Conical Antenna. Conical Antenna. Antenna Engineering. Antennas are used to couple guided electromagnetic energy to waves in free space. Antenna engineering design involves minimizing reflection losses and obtaining desired directional properties for a wide range of frequencies.

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Example: Conical Antenna

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  1. Example:Conical Antenna

  2. Conical Antenna Antenna Engineering • Antennas are used to couple guided electromagnetic energy to waves in free space. • Antenna engineering design involves minimizing reflection losses and obtaining desired directional properties for a wide range of frequencies. • antenna impedance • radiation pattern • frequency analysis • Modeling can be extremely useful as it reduces the need for building prototypes and performing measurements.

  3. Conical Antenna - geometry and parameters Antenna Ground plane teflon, er=2.07 metal Coaxial feed air Antenna parameters coaxial feed: rinner = 1.5 mm router = 4.916 mm Z = 50 W 0.4 m 0.2 m 0.1 m 0.282 m

  4. Conical Antenna - equations Metal: Axial symmetry Low-reflecting boundary with excitation: Low-reflecting boundary

  5. Conical Antenna – results (1Ghz)

  6. Conical Antenna - results (1Ghz) Balanced feed

  7. Conical Antenna - results (1Ghz) Unbalanced feed

  8. Conical Antenna - results

  9. Conical Antenna - results

  10. Conical Antenna - results Smith Chart: antenna impedance

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