Problem 2 (20 pts). Given a 5-element array with equal spacing, uniform amplitude and phase with d Write the normalized array factor for both the endfire and broadside radiation patterns. Pr...
0 Problem 2 (20 pts). Given a S-element array with equal spacing, uniform amplitude and phase with dWrite the normalized array factor for both the endfie and broadside radiation patterns
0 Problem 2 (20 pts). Given a S-element array with equal spacing, uniform amplitude and phase with dWrite the normalized array factor for both the endfie and broadside radiation patterns
Name: Problem 2. (Option # 1 ) Five half wavelength dipole antennas are used as sources to form a linear phased array antenna, as shown below. These elements are all excited by sinusoidal current source of equal amplitude and phase followed by phase shifters. (9 pts.) a) If d 2, write the expression for array factor of the linear array. (9 pts.) b) Find total field at observation point P: (r, 0, 6) at far-field (i.e., kr>1). (8 pts.) c)...
8.2-4 Usually, the interelement spacing of an array is about one-half wavelength. Spacings much greater than this produce major lobes in undesired directions. To illustrate this point, use the techniques of Fig. 8-6 to sketch the array factor for a two-element array with equal amplitude, in-phase elements in polar form for the following spacings: (a) d31/4 and (b) d- 22. Examples 3-2 and 8-1 and this problem show the effects of spacing on an array of fixed excitation. 2π -Visible...
Question 11 Not yet answered Marked out of 1.00 p Flag question Two isotropic sources, both fed with the same amplitude and a 0 degrees phase difference, what is the minimum spacing between the elements required in order to form at least one null in the array factor: Select one: a. ob.312 O C.NA d. N2 Next page on Question 8 Not yet answered Marked out of 1. 00 p Flag question Three 5-element arrays of isotropic sources and uniform...
Problem 2 (10 points) A bundled 60 Hz three-phase line has three conductors per bundle. The conductors of the bundle have equal spacing of 45 cm. The spacing between bundle centers of the three phase line is 10,. 10 and 20 m. It is also known that the radius of each conductor is 0.015 m. The equation for calculating the per phase capacitance to neutral is given as: C.D In(?) DA sC Calculate: (1) the D, in the equation (5...
MATLAB Problem
HW7P2 (20 points) (5 pts) Write a user-defined MATLAB function called HW7P2_fn for the following math function 3 o-0.47x The input to the function is x and the output is y. Write the function such that x can be an array (use element-by-element operations) (15 pts) Use the function in (a) the command window to calculate y(-2) and y(5) (b) a script file HW7P2.m to determine y(x) for 0.001 Sx S 10 with 1000 points. Hint: Use the...
Problem No. P3: Type 2 Linear Phase FIR fitler A Type 2 linear phase FIR filter is given by h[n]-[-4, 1,-1, -2, 5, 6, 6, 5, -2, -1, 1,-4) Determine the amplitude response Hr(w) and the location of zeros of H(z) Use the code below: 2. Hr.type2: function [Hr,v,b.L) Hr_Type2(h); % Computes Amplitude response of a Type-2 LP FIR filter % Hr Amplitude Response % w- frequencies between [0 pi] over which Hr is computed % b = Type-2 LP...
PROBLEM 5 (20 pts]: Draw an impedance diagram for the electric power system given in the Figure 4 showing all impedances in per unit on a 100MVA base. Choose 20/200 kV as the voltage base. If there is a three-phase to ground solid fault at the load bus, what will be fault current taken from generator 1. The three-phase power and line-line ratings are given below. Gl: 90 MVA, 20 kV, X = 9%; TR1: 80 MVA, 20/200 kV, X...
2. (30 pts.) 5 m B C D 6panels at 31n = 18 m Consider the given truss above and assuming loads acts on the bridge deck along the bottom cord write equations with respect to x and a) Draw the influence line for the force in member Cl and U by writing necessary equations. (20 pts.) b) Determine the maximum tension force in member IU considering the following loading below: (10 pts.) uniform dead load w-2 kN/m uniform live...
Problem 4 (20 PTS) For the given function: 2(,y) = re (1) (8 PTS) Determine 2x , zy, Zry, and Zyz. (2) (4 PTS) State whether the conclusion of Clairaut's theorem holds for z(x, y) and explain your answer. (3) (8 PTS) Determine and write down the equation of the tangent plane to the surface : at the point P(1,0,1). Give the equation in standard form, i.e. in the form Ax+By+C2 = D.