given that H(x, y; t) = a:2sin(157x)cos(6r10't-Py) (A/m) in air, find E(x,y;t)and B'
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given that
H(x,y;t)= az2sin(15πx)cos(6π109t-βy) (A/m)
in air, find E(x,y;t) and β
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- 2.5. Find the half-power beamwidth (HPBW) and first-null beamwidth (FNBW), in radians and degrees, for the following normalized radiation intensities: (a) U (0) = cos 0 cos(20) (b) U(0) = cos? e cos (20) (c) U (0) = cos(0) cos(30) (d) U(0) = cos²(8) cos²(30) (e) U (8) = cos(20) cos(30) (f) U (8) = cos²(20) cos (30) (0 <0 < 90°, 0 <ø S 360°)1.) Find the distance from a transmit antenna (gain = 27 dB) with 10 Watt input power at which the power density is 5 mW/m². Assume free-space propagation. 2.) The power density is 4 mW/m² at some distance R from an isotropic antenna. The isotropic antenna is replaced with a different antenna and the power density measured is now 60 mW/m² at the same distance R. What is the gain (in dB) of the second antenna? 3.) The received power at an airplane is calculated as Pr=-43 dBm at a range of 13 miles using free-space propagation. Determine the received power (in dBm) at a range of 52 miles. Step by step and easy to understand and clear please. thanksDetermine the directivity in dB for an antenna that produces a power density of 10 uW/m2 at a point in space when a reference antenna produces 0.4 uW/m2 at the same point.
- 6.2 In a microwave range measurement system the electromagnetic signal v1 ¼ A sin 2ft, with f ¼ 100 MHz, is transmitted and its echo v2ðtÞ from the target is recorded. The range is com- puted from , the time delay between the signal and its echo. (a) Write an expression for v2ðtÞ and compute its phase angle for time delays 1 ¼ 515 ns and 2 ¼ 555 ns. (b) Can the distance be computed unambiguously from the phase angle in v2ðtÞ? If not, determine the additional needed information. (a) Let v2ðtÞ ¼ Bsin 2f ðt Þ ¼ B sinð2ft - Þ. For f ¼ 100 MHz ¼ 108 Hz, - ¼ 2f ¼ 2 108 ¼ 2k þ where 0A transmitting antenna with an effective height of 10 m has 50 A current at the base. If the frequency of transmission is 600 MHz, then find out the transmitted power.The radiation pattern of an antenna in spherical coordinates is given by f(x)=cos8x where the angle x lies between 0 to pi/2. What will be the directivity of the antenna?
- Two planes are 15 km apart and are in radio communication. The transmitting plane delivers 500 watts. Its antrnna gain is 10 in the direction of thenother plane. The power absorbed by the receiving antenna of the other plane is 2 micro watts. Find the effective area summing the reflections are negligible.Wireless and Communication! 1. An isotropic antenna is supplied with a 110 W power which is having a gain of 5 dB. Determine the effective isotropic radiated power (EIRP) and the power density at a distance of 9 km.Calculating the skin thickness of any metal with characteristics σ = 3.5x107 S\m, є = єo and μ = μo at 60 Hz and 60 MHz, a hollow metal with a length of 100 m and an outer diameter of 2.54 cm and a thickness of 5 mm ( Find the surface resistance of the conductor at each frequency
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