2.1. An antenna has a beam solid angle that is equivalent to a trapezoidal patch (patch with 4 sides, 2 of which are parallel to each other) on the surface of a sphere of radius r. The angular space of the patch on the surface of the sphere extends between z/6 <0SR/3(30°sos 60°) in latitude and R/4 soSa/3(45° sos 60°) in longitude. Find the following: (a) Equivalent beam solid angle [which is equal to number of square radians/steradians or (degrees) ] of the patch [in square radians/steradians and in (degrees). • Exact. Approximate using = A0 A (0, - 0) (2-). Compare with the exact. (b) Corresponding antenna maximum directivities of part a (dimensionless and in dB). %3D

2.1. An antenna has a beam solid angle that is equivalent to a trapezoidal patch (patch with 4 sides, 2 of which are parallel to each other) on the surface of a sphere of radius r. The angular space of the patch on the surface of the sphere extends between z/6 <0SR/3(30°sos 60°) in latitude and R/4 soSa/3(45° sos 60°) in longitude. Find the following: (a) Equivalent beam solid angle [which is equal to number of square radians/steradians or (degrees) ] of the patch [in square radians/steradians and in (degrees). • Exact. Approximate using = A0 A (0, - 0) (2-). Compare with the exact. (b) Corresponding antenna maximum directivities of part a (dimensionless and in dB). %3D

C++ for Engineers and Scientists

4th Edition

ISBN:9781133187844

Author:Bronson, Gary J.

Publisher:Bronson, Gary J.

Chapter7: Arrays

Section7.5: Case Studies

Problem 15E

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