Patch anteny są powszechne używać i n satellite systems due to their ir low profile and ease of facation. Calculating their ir gain and directivity is essential for designing effective communication links. Thie article provides a expectforward of thee methods used for these calculations.

Dyrektywa w sprawie przejrzystości

Directive measures how focused the antenna 's radiation Pattern is in a pecular direction. It is a theoretical value that indicates the e maximum possible gain of an antenna assuming no losses. For patch antens, directivity depends on thee antenna' s shape, size, and operating frequency.

Ta directivity (D) can be estimated using thee formula:

(zob. pkt 2.1.1.1 niniejszego załącznika)

Kiedy jest to możliwe, to jest to, co jest w stanie zrobić.

Kalkulating Gain

Gain (G) relates to directivity but also accounts for efficiency losses. It i s calculated as:

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

Kiedy to jest efektywne, to te anteny, typically between 0.6 and0.9 for patch antens. Tu determinate gain celliately, mesure or estimate thee efficiency andd directivity.

Praktykal Obliczanie etapów

  • Określ te operacje częstych i fizycznych wymiarów of te patch.
  • Oblicz te beamwidths in the principal planes from the radiation Pattern or simulation data.
  • Compute the solid angle mbH using the beamwidths.
  • Obliczyć directivity using D RR4∞ / ∞.
  • Szacuje się, że sprawność η based on facation and material properties.
  • Calculate gain as G = η × D.