Подскажите, какая из расчитанных антенн лучше.
№1:
Frequency 2400 MHz
Diameter 15,5 mm.
Depth 4,80 mm.
f/D 0,201822916666667
-------------------------
f/D = 0,20
Focal Length = 3,13 mm.
Illumination angle for feed = 204,3 degrees
Space attenuation = 8,08 dB
Desired taper = 1,92 db for 10 dB edge illumination
A simple feed horn would have a diameter of 0,26 wavelengths for a 3 dB beamwidth of 255,27 degrees
Gain at 50% efficiency = -11,19 dBi
Или №2:
Frequency 2400 MHz
Diameter 14 mm.
Depth 5,00 mm.
f/D 0,175
-------------------------
f/D = 0,18
Focal Length = 2,45 mm.
Illumination angle for feed = 220,0 degrees
Space attenuation = 9,66 dB
Desired taper = 0,34 db for 10 dB edge illumination
A simple feed horn would have a diameter of 0,10 wavelengths for a 3 dB beamwidth of 653,40 degrees
Gain at 50% efficiency = -12,08 dBi
Антенна такого типа:(во вложении)
И расчитан по формуле (прилагается)
№1:
Frequency 2400 MHz
Diameter 15,5 mm.
Depth 4,80 mm.
f/D 0,201822916666667
-------------------------
f/D = 0,20
Focal Length = 3,13 mm.
Illumination angle for feed = 204,3 degrees
Space attenuation = 8,08 dB
Desired taper = 1,92 db for 10 dB edge illumination
A simple feed horn would have a diameter of 0,26 wavelengths for a 3 dB beamwidth of 255,27 degrees
Gain at 50% efficiency = -11,19 dBi
Или №2:
Frequency 2400 MHz
Diameter 14 mm.
Depth 5,00 mm.
f/D 0,175
-------------------------
f/D = 0,18
Focal Length = 2,45 mm.
Illumination angle for feed = 220,0 degrees
Space attenuation = 9,66 dB
Desired taper = 0,34 db for 10 dB edge illumination
A simple feed horn would have a diameter of 0,10 wavelengths for a 3 dB beamwidth of 653,40 degrees
Gain at 50% efficiency = -12,08 dBi
Антенна такого типа:(во вложении)
И расчитан по формуле (прилагается)
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