Antenna fundamentals, Electrical Engineering

Assignment Help:

Antenna Fundamentals

We shall discuss here only the fundamental concepts needed to understand the role of an antenna as a power-coupling element of a system. Figure illustrates the elements of a communication

321_Antenna Fundamentals.png

system that involves antennas (with no conductors in the propagation medium) and the following nomenclature:

Pt Power generated by the transmitter

Lt, Lr Transmitting-path loss (representing the power reduction caused by the transmission line or waveguide that connects to the transmitting antenna) and receiving-path loss

Lta, Lra Transmitting antenna loss and receiving antenna loss

R Distance of separation between the antennas

S Signal power available at the lossless antenna output

Sr Signal power available at the receiver input

Radio transmission consists of antennas at the source and at the destination. It requires the signal to be modulated on a high-frequency carrier, which usually is a sinusoid. Driven by an appropriate carrier, the transmitting antenna launches an electromagnetic wave that propagates through space without the help of a transmission line. A portion of the radiated power is collected at the receiving antenna.


Related Discussions:- Antenna fundamentals

Immediate addressing , Immediate  Addressing In this  addressing mode...

Immediate  Addressing In this  addressing mode that 8/16  bit data  is specified  in the  instruction itself  as its  one of the  operands. Normally the instructions  using  a

Get bode plots of magnitude and phase of transfer function, Develop a PSpic...

Develop a PSpice program and use PROBE to obtain Bode plots of the magnitude and phase of the transfer function ¯V out / ¯V in for the high-pass ?lter circuit shown in Figure (a)

Explain the nand gates - microprocessor, Explain the NAND Gates - Microproc...

Explain the NAND Gates - Microprocessor? The NAND GATE is a AND gate with the output inverted. Consequently the outputs of a NAND gate would be the opposites of the outputs of a A

Explain law all point on wave front seems as new wave source, Whose princip...

Whose principle or law states that each point on a wave front may be considered a new wave source? Is it: w) Snell's Law x) Huygen's Principle y) Young's Law z)

Case 2 a>b - program description, Case 2 ( A>B) Suppose XX = 05H ( stor...

Case 2 ( A>B) Suppose XX = 05H ( stored  in A ) And  YY = 02H ( stored  in B). Then carry  flag will  reset by CMP instruction, since  A> B in this  case JNC  will transfer the

Downsampling in dsp, #ques1. (MATLAB) Generate 100 samples of the signal ...

#ques1. (MATLAB) Generate 100 samples of the signal  = sin (0.125). We want to decimate this signal using D = 2. • Design a 25-order lowpass filter using the Parks-McClella

Explain about stored program control, Q. Explain about Stored Program Contr...

Q. Explain about Stored Program Control? Stored Program Control:   In centralized control, all control equipment is replaced by a single processor which should be quite powerf

Determine the capacitor and inductor voltages, Experiment • Wire the circu...

Experiment • Wire the circuit shown in Figure. Connect the three oscilloscope channels as shown in Figure. • Select the sinusoidal waveform. Adjust the frequency of the input volt

Determine the equivalent inductance, Determine the equivalent inductance: ...

Determine the equivalent inductance: Two coils of inductances 4H and 6H are connected in parallel. If their mutual inductance is 3 H, determine the equivalent inductance of th

Digital electronics, design 4 bit binary coded decimal to excess 3

design 4 bit binary coded decimal to excess 3

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