Assume that the field in an a × b rectangular aperture in an xy -plane is linearly polarized in the y-direction and that the aperture excitation has a uniform phase and a triangular amplitude distribution 11eb823e_d85d_0576_b220_67aec10a43de_SM4967_00 Find (a) the pattern function in the xz -plane, (b) the half-power beamwidth, (c) the location of the first nulls, and (d) the level of the first sidelobes. Compare the results with those obtained in Example 11-13 for uniform field distribution.

Field and Wave Electromagnetics 2nd Edition by David Cheng

النسخة 2الرقم المعياري الدولي: 978-0201128192

Field and Wave Electromagnetics 2nd Edition by David Cheng

النسخة 2الرقم المعياري الدولي: 978-0201128192

تمرين 5

Assume that the field in an a × b rectangular aperture in an xy -plane is linearly polarized in the y-direction and that the aperture excitation has a uniform phase and a triangular amplitude distribution

Find (a) the pattern function in the xz -plane, (b) the half-power beamwidth, (c) the location of the first nulls, and (d) the level of the first sidelobes. Compare the results with those obtained in Example 11-13 for uniform field distribution.

التوضيح

موثّق

(a)
Consider the expression for rectangu...