Uzgodnienie, że te pojęcia antenowe lub antenowe directivity and gain is essential for RF entermers. These parameters help in designing antens anthens for various communication systems. This article provides a step approvach tu calculating these important antenna characterics.

Uzgodnienie Antenna Directivity

Directive measures how focused an antenna 's radiation pattern is in a particar direction. It is a ratio of the maximum radiation intensity to thee average radiation intensity over all directions. Higher directivity indicates a more focused beam, which can improwize signal contribution in a specific direction.

Calculating Directivity

Te directivity (D) can be calculated using thee formula:

(zob. pkt 2.1.1.1 niniejszego załącznika)

Kiedy jest to stałe anglii in steradians. For practical celies, if te antenne 's radiation paragn is known, thee directivity can be estimated by integrating thee normalized power paragon over thee sfere.

Understanding Antenna Gain

Gain combines the antenna 's directivity with its efficiency. It indicates how well an antenna converts input power into radio waves in a specific direction. Gain is expressed in decibels (dBi) relative to an isotropic radiator.

Kalkulating Gain

Thee gain (G) can be calculated as:

Xi1; Xi1; FLT: 0 Xi3; Xi3; G = η × D Xi1; Xi1; FLT: 1 Xi3; Xi3;

Kiedy to jest efektywne, to jest to, co jest w tym przypadku, to jest to, co jest w tym przypadku nieefektywne.

Summary of Calculation Steps

  • Określ te radiotion wzor of te antenna.
  • Oblicz te stałe angle, bo są wzorce.
  • Complute directivity using D = 4δ / ∞.
  • Szacuje się, że efektywność η if available.
  • Calculate gain with G = η × D.