Electrical

need to be done in 25 hours with complete word file.

Design a linear phased array antenna, with the wavelength is 10 cm, and scanning angle is -50°≤ϴx≤50°. The steering angle is ϴ ̥= 0 ̊.

1. If there are 25 elements with equally spaced with distance of 5 cm. Calculate and plot the normalized radiation pattern (array factor) in dB. How about there are 51 elements used with equally spaced. Compare and discuss the results.

2. Similar to question 1, but the distance between elements are 15 cm. Calculate and plot the results. Discussion the results and compare with question 1.

3. If there are 25 elements with equally spaced with distance of 5 cm. Calculate and plot the normalized radiation pattern (array factor) in dB via the DFT. Three different tapering functions: rectangular, Hamming, Hanning are used. Compare the results from three different window functions.

4. Same setting as 3, but the steering angle is ϴ̥=5 ̊.

5. Repeat questions 1-2, with two-dimensional pattern for -50°≤ϴx≤50° and -50°≤ϴy≤50°.

6. Repeat questions 1-3, with two-dimensional pattern for-50°≤ϴx≤50° and -50°≤ϴy≤50°.

You are required to write computer codes to plot the antenna pattern and analyze the results. Note proper labels are required for all figures.