This synthesis algorithm will design a linear array for a specified directivity or beamwidth. The array is always designed so that the elements are arranged along the x-axis, with the resulting pattern being symmetrical around the x-axis and the peak directivity in the y-z plane (broadside).An example of a 3D pattern for this array.
The inter element spacing is always 0.49 λ when this design algorithm is used. If a directivity of less than 20dB, or a beamwidth of greater than 20 °, is specified, all the side-lobes will be equal and -20dB below the main beam directivity [Dolph-Chebychev excitation taper]. For higher gain designs, the first 5 side lobes will be -20dB below the main beam directivity [Villeneuve excitation taper].
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.