Log- periodyc antens are e widely used in applications requiring broad frequency ranges. understanding their ir gain and directivity is essential for effective design andd deployment. Thie article explores practival methods to calculate these parameters propriately.

Uzgodnienie Gain i Directivity

Gain measures how well an antenta directs radio frequency energy in a specific direction compared to an isotropic source. Directivity indicates the concentration of radiated power in a particiar direction. Both are critical for assessing antenna performance.

Methods for Calculating Gain

Praktyka kalkulacji w zakresie tych metod jest bardzo dobra, ale nie jest to możliwe.

Recessiting Directivity

Directivity can be approximated using the antenne 's radiation paraftern. For log- periodyc antens, the pattern typically exhibits multiple lobe. The maximum radium attion direction determinates the directivity, which can be calculated using the formula:

Xi1; Xi1; FLT: 0 Xi3; Xi3; Directivity = 4mbH / Solid angle of main lobe Xi1; Xi1; FLT: 1 Xi3; Xi3; Xi3;

Klepsydra praktyczna

  • Use a calilated antenna for measurements.
  • Perform measurements in an open area to minimize reflections.
  • Użyte symulation tools for initival estimates.
  • Porównaj wyniki with accorder specifications when accordable.