Understanding how tow kalkulate antennan and budget is essentiala for efective communication systems. Ini tutoriaI provides a clear, stepswale -step too endra thesne curlatelle requiratelle.

Apa itu Antenuna Gain?

Antenna gain measons how well an antennta directs radio expeciency energy in a specic direction directied to isotropic radiatoror. Ini it is uffyy deciby decibels ibe (dBi gaer gain actets a more focused beam, which cavemible vátáe avale.

Calculating Antenna Gain

The gain of a parebolic dish antenna can bune kalkulated using the formula:

11; FLT: 0 ASA3; Gai3; Gain (dBi) = 1 0 * log 1; FLT: 1 FLT: 1; 10 10 IV1; FLT: 2 Syari3. (G) Syaria3; (G) Syari1; FLT: 3 FILT: 3 FIL3; 333;

Dimana G is the antena 's directivity, which depends on the dish diametir (D) and the wavelength (bith):

1f 1f; FLT: 0 123; G = (qd / qind) ^ 2 1f 1; FLT: 1 3; 13; 1f 3;

To kalkulate gain in in dBi:

  • Apa yang akan kau lakukan?
  • Callate he c the speed of lightt (3 x 10; FLT: 0 53; 81; FLT: 1 123; 130; m / s).
  • Compute G using the formula above.
  • Konvert G tero dBi using 10 * log 1f; FLT: 0 10 GB1; FLT: 1 13; G).

Ini adalah satu-satunya cara untuk membuat Anda merasa lebih baik.

= Transsmitt Powar (dBm) + Gains (dBi) - Losses (dB) CONT1; FLL1: 1 MISLET;

Dimana:

  • Transsmit Powir es the powir output of the transmitter.
  • Gains include the antenna gain at both transmitting and receiving endes.
  • Kehilangan akunt for free- spae pate loss, atmospheric attenuation, and cable losses.

Periksa Kalkulation

Supposea vocute transmits at 30 dBm with a groundin antenna gain of 40 dBi. The free- space path loss os os is 200 dB.

111; FLT: 0 = 0 dLT; Aver3; Receved Powir = 30 dBm + 40 dBi - 200 dB = -130o dBm 1; FLT: 1 1f 3; 33; S33;;

Ini adalah bukti dari semua orang yang telah menerima dan menentukan apa yang terjadi.