Directivity = 41253/((HPBWe)(HPBWh)) = 41253/(29*19)
= 74.86
In dB
D = 10log(74.86) = 18.74 dB
G = (n)D , n = efficiency
= 0.9*18.74
= 16.86 dB
Consider a horn antenna that a half-power beam widths in the principal planes of HPBpl19, HP29°....
2. a. Discuss the practical importance of the antenna beam width b. For an Omni-directional antenna the measurements show the Half Power Beam Width (HPBW) in vertical and horizontal planes are 30° and 20° respectively, antenna has loss resistance of 25Ω and efficiency η-0.8,Find: i. Antenna's gain in dB, and ii. Radiation resistance. 2. a. Discuss the practical importance of the antenna beam width b. For an Omni-directional antenna the measurements show the Half Power Beam Width (HPBW) in vertical...
You are an antenna engineer and you are asked to design a high directivity/gain antenna for a space-borne communication system operating at 10 GHz. The specifications of the antenna are such that its pattern consists basically of one major lobe and, for simplicity, no minor lobes (if there are any minor lobes they are of such very low intensity and you can assume they are negligible/zero). Also it is desired that the pattern is symmetrical in the azimuthal plane. In...
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Thank you! 7. Consider an antenna that radiates 100 W for a current lo = 2.0 A. a. Calculate Rrad b. If the same antenna has an efficiency of 90%, calculate Ross C. How much power would be required from the power source to radiate 100 W? (assume good impedance matching) d. If the directivity of the antenna is 3.75, calculate the antenna gain, G.
Consider the quarter-wave monopole in an infinite ground plane (which is a metal or PEC). How do the following parameters of this antenna compute to those of a half-wave dipole? a. Input resistance b. Radiation pattern c. Directivity (i.e. its max value) d. Gain (i.e. its max value) 4. nee-자기 dhai l< 4. nee-자기 dhai l
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