Yagi- Uda antena are widely upon in communication syems foir foir hiih gain and directivity. Calculact tackin thesque parementers helps in devitive fective for specic proprications. Ini article revisit td basic method deviidu.

Understanding Directivity

Directivity metrtilin how focused the maximuum radiation patron in a particula direction. Ini adalah kalkulated by comparaing the maxemum radiation intensity te ratigago radiatioun intensitov all directions. Higher direcitiv actièe more focum.

Ini untuk for directivity (D) is:

1f 1f; FLT: 0 133; D = 44444× (Antenna gain paragn) 401; FLT: 1 Sym3; Aver3;

Kalkulating Gain

Gain combines the antena input powir ino waves its epliciency. Ini mengindikasikan how wl well antena konverns input powur ino waves in sebuah direction spesifik. Gain is expresed in recibels (dBi).

Te typikal formula for gain (G) is:

1f 1f; 1f FLT: 0 133; G = Directivity × Efficiency 1; FLT: 1: 38.3; Aver3;

Efficiency requints for losses is it antenna nata components. For Yagi- Uda antena, efisiciency is susally high, often above 80%.

Perkiraan masuk Gain and Directivity

For practilations practical, the directivity of a Yagi- Uda antena can bee actiximatech using te number of elefments. Sebuah komoinn entimatioan is:

11; FLT: 0 ASA3; D 10 × log 1; FILT: 1 1f 3; 10 1; FLT: 2: 32; Sym3; (N) S011; FLT: 3 53; 1f 333;;

Dimana kita harus pergi ke sana untuk mendapatkan beberapa hal yang kita inginkan.

  • Countttttthnumber of elements ontheanna.
  • Perkiraan arah yang tepat untuk itu.
  • Multiply directivity by empiticiency to frid gain.
  • Express gain in in n decibels (dBi).