Explain wireless electromagnetic channels, Electrical Engineering

Assignment Help:

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).


Related Discussions:- Explain wireless electromagnetic channels

Power machines., name two types of axial flow turbines

name two types of axial flow turbines

Explain pentium processor has a superscalar architecture, 'Pentium processo...

'Pentium processor has a superscalar architecture'. Explain the meaning of the statement. The Pentium microprocessor is organized along with three execution units. Single execu

Find the fourier transform of the signal, Problem (a) Give an example...

Problem (a) Give an example of a power signal and one example of an energy signal. (b) Given a periodic signal x (t) = A sin (2Bft). Calculate the power Px. (c) Diffe

Factors that influence choice of carrier frequency, 1. Why must a modem be ...

1. Why must a modem be used to transmit binary data through a PSTN? (1) Use sketches and additional text to describe the following modulation methods. (a) Amplitude shift key

Governer, governer characteristics

governer characteristics

Compute the motor speed, Consider the 220-V, 1800-r/min dc motor, controlle...

Consider the 220-V, 1800-r/min dc motor, controlled by a three-phase fully controlled rectifier from a 60-Hz ac source. The armature-circuit resistance and inductance are 1.5  and

Measures of regulator quality, Measures of regulator quality: The outp...

Measures of regulator quality: The output voltage can just be held roughly constant; the regulation is fixed by two measurements: 1. Load regulation is the alteration in ou

Input offset voltage of operational amplifier, Q. Input offset voltage of o...

Q. Input offset voltage of operational amplifier? When both inputs are tied to ground, i.e., both differential-mode and common-mode inputs are zero, the output should be zero.

Find the highest speeds at which linkage would be possible, Q. Two coupled ...

Q. Two coupled synchronous machines are used as a motor-generator set to link a 25-Hz system to a 60-Hz system. Find the three highest speeds at which this linkage would be possibl

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd