In an air line, adjacent maxima are found at 12.5 cm and 37.5 cm. The operating fre- quency is (a) 1.5 GHz (b) 600 MHz (c) 300 MHz (d) 1.2 GHz
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A: Given data: f1=7 GHzf2=12 GHza=2.54 cmb=1.5 cm
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A: Please refer the attached images for the complete answer..
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A: By carson’s ruleBW = 2(Δf + fm)= 2(50+ 0.5)= 101 KHz
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Q: A brass waveguide (o. 1.1 x 10' mhos/m) of dimensions a = 4.2 cm, b%= 1.5 cm is filled with Teflon…
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A: The directional construction is shown in the figure below:
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- a servomechanism is designed to keep radar antenna pounted at flying aeroplane if the aeroplane is flying with the velocity of 600km/hr. The velocity is given at a range of 2km and the maximum tracking error is to be within 0.1\deg .determine the velocity error. Kv/s(1+st)At a certain time, the maximum usable frequency (MUF) for transmission at an angle of incidence of 75° is 20MHz. A) What is the critical frequency in MHz? (Use two decimal places for the final answer) B) What will be the optimum working frequency (OWF) in MHz? (Use two decimal places for the final answer)Prepare a table of values for the change of maximum usable frequency when an incident angle [6M] change from 900 to 00 (calculate for every 10 degrees), and plot a graph, assume that the critical frequency is constant at 30MHz. and give your observation over the graph.
- A 10 MHz carrier is frequency modulated by a sinusoidal signal of 500 Hz frequency and the maximum frequency deviation is 50 KHz. What will be the bandwidth of the FM signal?If the FNBW of a parabolic reflector antenna is 15o at 1.5 GHz then estimate the diameter of the antenna.Calculate the First Null Beamwidth and the gain of a parabolic reflector antenna. The diameter of the reflector is 5m and the antenna is transmitting at 100 MHz.
- Determine the radio horizon for a transmit antenna that is 100 ft high and a receiving antenna that is 50 ft high and for antennas at 100 m and 50 m.PLEASE SHOW ALL WORK 2. Following plot is the radiation pattern of an antenna. Determine: a) Antenna gain in dBi and dBd b) Front to back ratio in dB. (Show calculation steps by marking on the diagram)Use the free space model to compute the free space path loss for a 900 MHz signal over a distance of 200 meters. Express your answer in dB. state the answer in the correct units and show all your computations to receive credit
- True or False. If the noise variance increases, the average power density of the Gaussian white noise increasesA rectugular air-filled copper waveguide with demension 2.28 cm x 1.01 cross section and 30.48 cm length is operated at 9.2 GHz with a dominant mode. find cut off frequencyAn antenna has a gain that is 13 times better than an isotropic antenna. Calculate the gain of this antenna in units of dBi.