Antenna Gain ની ગણતરી કેવી રીતે કરવી
Antenna Gain શું છે?
Calculates antenna directivity and gain compared to isotropic radiator. Shows how antenna concentrates power in preferred direction.
સૂત્ર
Gain (dBi) = 10 × log10(power density vs. isotropic)
પગલું દ્વારા પગલું માર્ગદર્શિકા
- 1Gain (dBi) = 10 × log10(power density vs. isotropic)
- 2Omnidirectional antennas 0-3 dBi
- 3Directional antennas 5-20+ dBi
- 4Gain trade-off: narrower pattern = higher gain
- 5Efficiency factor: practical gain < theoretical
Worked Examples
ઇનપુટ
Dipole antenna
પરિણામ
2.15 dBi
Common Mistakes to Avoid
- ✕Confusing antenna gain with amplifier gain
- ✕Not accounting for free space path loss
Frequently Asked Questions
What's the difference between dBi and dBd?
dBi: vs. isotropic point source; dBd: vs. dipole; dBi = dBd + 2.15.
How does antenna gain improve range?
6 dB gain = 2× power (doubles range); 10 dB = 10× power (3.16× range).
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