開口アンテナの利得 (Antenna Aperture Area and Gain)

2013.4.28 Takuichi Hirano

Relationship between antenna aperture area and gain of aperture antennas.


Calculator (Aperture Area -> Gain)

Input

Frequency f GHz
Aperture area A mm2
Aperture efficiency h (0-1)

Output

Free-space wavelength l=c/f mm
Gain G 
Gain in dBi 10 log10G  dBi

Calculator (Gain -> Aperture Area)

Input

Frequency f GHz
Gain in dBi G  dBi
Aperture efficiency h (0-1)

Output

Free-space wavelength l=c/f mm
Aperture area A mm2
Aperture area in wavelength A/l2 l2

References

  1. C.A. Balanis: Antenna Theory, John Wiley & Sons, Inc., pp.88-90,1997.
  2. dB Calculator
  3. フリスの伝達公式(Friis Transmission Equation)

Copyright(c) 2013 Takuichi Hirano

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