CST – Computer Simulation Technology

Linear Array Broadside Directivity and Excitation Taper


This synthesis algorithm will design a linear array for a specified directivity or beamwidth and a scan angle. The array is always designed so that the elements are arranged along the x-axis, with the resulting pattern being rotationally symmetric around the x-axis and the peak directivity being at the specified scan angle away from the y-z plane.

1 An example of a 3D pattern for this array.

The inter element spacing is always 0.5 λ when this design algorithm is used. The excitation taper can be selected between equal excitation [Uniform], uniform side lobe level [Dolph-Chebychev] and first few side lobes uniform [Villeneuve]. The side lobe level and number of side lobes (where applicable) can then be set.

More information about how the array synthesis tool should be used can be found in ‘ ...

Antenna Array Synthesis in Antenna Magus ’ and in ‘Help: How do I use the Array Synthesis tool? ’ (located in the Antenna Magus information browser). The latter article also describes the different excitation tapers in more detail, and provides references for further research.

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