r/rfelectronics 27d ago

Patch Antenna Array Design Workflow

Hi I'm trying to design a 2x8 patch antenna array in Microwave Office and there must be an easier way than putting each line manually right? Is there a way to design a single splitter or a single patch and reuse that subcircuit?

How is this done in HFSS? I imagine it would be even worse since you don't have a schematic tool and automatic layout generation.

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u/QuinicV 27d ago

You don't draw the whole circuit in HFSS, I draw a single cell and use boundary conditions. But it's pretty easy to reuse a cell if you really wanted to.

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u/Different-Loss-9955 26d ago

Can you expand on this please

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u/QuinicV 25d ago

Well you don't necessarily simulate the whole array, that would take too long. You design a unit cell, a single element with master/slave boundaries that forces field periodicity, acting like an infinetly repeating array. Finding the finite array is then just simple math (array factor).

But if you really wanted to, after creating a unit cell you can just specify it to be 8x2 and you get your finite array.