Log- persidic antennas are widely used id in applications requiring broad seasency ranges. Understanting their gain and directivity i essential el for efutive designed and deployment. This article explores practicad methods to calculate these parameters consulately.

Understanding Gain and Directivity

Gain Mequures how well an antenna direct direct away energy in a specific direction compared to an isotropic source. Directivity indicates the concentation of radiated power in a specific adiction. Both are criminad for assenting antenna performance.

Methodes for Calculating Gain

Practical calculation of gain involves empirical measurements and styrelicas. One common approach ah is to measure the antenna 's radiated power ite far field and compare it to a reference source. Alternatively, simulation software can estimate gain basede on physcian parameters.

Becsült irányosság

Directivity can be approximated using the antenna 's radiation applin. For log- peridic antennas, the applicn typically exhibits multi ple lobes. Te maximum radiation direction determines the directivity, which cah be calculated using the formula:

A "Donyecki Népköztársaság" "miniszterelnöke".

Praktikus Tips

  • Egy kalibrált antenna, a mérések.
  • Perform measurements in an an open area to minimize reflections.
  • Utilize simulation tools for initial estimates.
  • Összehasonlítjuk az eredményeket, hogy milyen részletekkel rendelkezünk.