The approximate far zone normalized electric field radiated by a resonant linear dipole antenna used in wireless mobile units, positioned symmetrically at the origin along the z- axis, is given by 0° <0< 180° 0° <0< 360° E - â„E, sin'5 where E, is a constant and r is the spherical radial distance measured from the origin of the coordinate system. Determine the: (a) Exact maximum directivity (dimensionless and in dB). (b) Half-power beamwidth (in degrees) (c) Approximate maximum directivity (dimensionless and in dB). Indicate which approxi- mate formula you are using and why? (d) Approximate maximum directivity (dimensionless and in dB) using another approximate formula. Indicate which other formula you are using and why? (e) Maximum directivity (dimensionless and in dB) using the computer program Directivity.

The approximate far zone normalized electric field radiated by a resonant linear dipole antenna used in wireless mobile units, positioned symmetrically at the origin along the z- axis, is given by 0° <0< 180° 0° <0< 360° E - â„E, sin'5 where E, is a constant and r is the spherical radial distance measured from the origin of the coordinate system. Determine the: (a) Exact maximum directivity (dimensionless and in dB). (b) Half-power beamwidth (in degrees) (c) Approximate maximum directivity (dimensionless and in dB). Indicate which approxi- mate formula you are using and why? (d) Approximate maximum directivity (dimensionless and in dB) using another approximate formula. Indicate which other formula you are using and why? (e) Maximum directivity (dimensionless and in dB) using the computer program Directivity.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

● Plot t(dilated time) for t = 1 hr (proper time) at different speeds [v =0, 0.1c, 0.2c......0.99c, c]
● Plot t(dilated time) for t = 1 hr (proper time) at different speeds [v =0, 0.1c, 0.2c......0.99c, c]
Matlab Program
Q4: For the following separation system, we know the inlet mass flow rate (in Kg/hr) and the mass fractions of each species in the inlet flow (F) and each outlet flow (F1, F2, and F3). We want to calculate the unknown mass flow rates of each outlet stream.
Given is a sine wave in time domain, using this wave plots answer the following: 1 second ww. Time A- How much is the wave amplitude with its unit? Answer B- How much is the wave frequency with its unit? Answer C- Draw the same wave in the frequency domain Answer
2- Given the following periodic signal with a period T: (solution must be with python code) f(t) = 2j- 4sin (100nt-40)- 10 cos (60пt + п-70) a) Find the period T and the fundamental frequency f Solve the problem mathematically to find the exponential Fourier series then: b) Use Payton to plot the one sided spectrum. c) Use Payton to plot the double sided spectrum. d) Find the power of the signal.
Q 4 please
The fundamental frequency of the signal: x(t) = 60 cos( (t- 0.0066) /0.033) [in units of Hertz is = ? If there is no valid answer, then use 0.0.
Given the polar function y- (cos(theta ))^2 -(Sin(theta))*0.5 Choose appropriate range for theta and plot y.
A signal's spectrum contains four components: -2500 Hz, -1700 Hz, +1700 Hz, and +2500 Hz. If we assume this spectrum is the product of two sinusoidal signals, what are the frequencies of the two signals whose product gives rise to this spectrum? 400 Hz and 2100 Hz 1700 Hz and 2500 Hz 1300 Hz and 2100 Hz 800 Hz and 4200 Hz
B. A 1.5m dipole transmitting antenna located with its eenter at the origin and radiates RF signal with frequency 0.1GHZ. A second dipole receiving antenna of length 0.75m is placed in such a way that its axis is purallel with first one at distance 400m, the delivered power in the receiving antenna is -38. 92d3. What is the transmitting power in watts from transmitting antenna?
i need the answer quickly