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Q. Explain Wireless electromagnetic channels?
Wireless electromagnetic channels are used in wireless communication systems, in which the electromagnetic energy is coupled to the propagation medium through an antenna that serves as a radiator. The physical size and configuration of the antenna depend mainly on the frequency of operation. For example, a radio station transmitting AM frequency band of 1 MHz (with a corresponding wavelength of λ = c/fc = 300 m) requires an antenna of at least 30 m (approximately one-tenth of the wavelength).
Q. For a 6-bit weighted-resistor D/A converter, if R is the resistor connected to the MSB, find the other resistor values needed, and calculate the maximum analog output voltage, t
Design a low noise amplifier using an Infineon RF transistor BFP640. The amplifier is to be used to amplify the L2 GPS signal and so the centre frequency is 1227MHz and bandwidth 4
The worldwide automotive industry is currently witnessing rapid innovative developments day by day. The developments encompass every aspect of the automobile such as materials, man
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A three-phase transposed line is composed of one conductor per phase with flat horizontal spacing of 11 m as shown in Figure 1(a). The conductors have a diameter of 3.625 cm and a
Q. Write a short note on RS-232-C. Ans: RS-232 standard is a collection of connection standards between different pieces of equipment. EIA RS-232 serial communication standard
Q. A50-kW, 230-Vcompound generator has the following data: armature-circuit resistance 0.05 , series-field circuit resistance 0.05 , and shunt- field circuit resistance 125 . As
Q. (a) Determine the voltage at A in Figure . (b) With V i = 10 V, R 1 = 10 k, R 2 = 1000 , and A = 100, find the current i .
Illustrate the experts model of GPS System A fundamental expert system is made up of the below elements: Setting up an Expert System - Information is collected
types of filtered power supply
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