Click here to learn more about [[Using Sources & Loads in Antenna Arrays]].
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===Sources & Loads For Antenna Arrays===
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If your project contains an array of line objects, you can also define an array of '''Lumped Sources''' to be placed on those lines. If you insert a new lumped source, all line array objects, if any, will be listed in the Lumped Source dialog as eligible objects for lumped source placement. A lumped source will be placed on each element of the array. All the lumped sources will have identical direction and offset. However, you can prescribe certain amplitude and/or phase distribution among the array elements. The available '''Weight Distributions''' include '''Uniform''', '''Binomial''', '''Chebyshev''' and '''Data File'''. In the last case, you need to set a value for maximum side lobe level ('''SLL''') in dB. You can also define a '''Phase Progression''' in degrees along each of the three principal axes.
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{{isoimg|FDTD59.png|Defining lumped sources with a Chebyshev weight distribution on an array of line objects.}}
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Just like lumped sources, you can place '''Lumped Loads''' on array of line objects. These loads can be resistors, capacitors, inductors or nonlinear diodes. If you insert a new lumped load, all line array objects, if any, will be listed in the Lumped Load dialog as eligible objects for lumped load placement. A lumped load will be placed on each element of the array. All the lumped load will have identical type, direction, offset and parameter values.
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If the project workspace contains an array of hollow box objects to model a rectangular waveguide array, you can also define an array of '''Waveguide Sources''' to be placed across those waveguides. If you insert a new waveguide source, all hollow box array objects, if any, will be listed as eligible objects for waveguide source placement. A waveguide source will be placed on each element of the array. All the waveguide sources will have identical direction and offset. However, you can prescribe certain amplitude and/or phase distributions. The available '''Weight Functions''' include '''Uniform''', '''Binomial''', '''Chebyshev''' and '''Data File'''. In the last case, you need to set a value for maximum side lobe level ('''SLL''') in dB. You can also define a '''Phase Progression''' in degrees along each of the three principal axes.
===Plane Wave Source===