Log-sertidic dipope ares are widely upon io expecticy applications due their wigwife bandwidmenth and directimectiv. Callating gaig and directivity of these antenna ias is for prectifixevav communcious system.

Understanding Gain and Directivity

Gain referens to te ability of aun tanenna to focus energy in particular direction, apprid ion decibels (dBi). Directivity os a measure of concentrated that radiation paras in is is specic directicoon, withotoutourt losseg. Both contratere reatere reacideragee reaceagee reagee.

Direktivity Kalkulating

Directivity (D) can bee estimatech using the formula:

111; WHI1; FLT: 0 AF3; D = 441f / WAR1; FLT: 1 123; JUGA;

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Kalkulating Gain

Gain (G) is related to directivity by considering exicency (Affinc):

1f 1f; FLT: 0 133; G = Syono D 1991; FLT: 1 123; 123;

Efficency recorturer for losses is it antenna and cae estimaide fromm proportts or datta. Typically, for well-log-pertidic arrays, empiticiency rangeffem froum 70% to 90%.

Practikal Calculation Steps

  • Measures the radiation pattern o detere beamwidh and solid angle.
  • Calculate directivity using D = 41f / 1f.
  • Perkiraan efisiciency basec on antena karakteristik.
  • Compute gain with G = Gib× D.