Create a rectangle with a length of 0.15 m, and a width of 0.15 m.
r = antenna.Rectangle(Length=0.15,Width=0.15);
Create a second rectangle with a length of 0.05 m, and a width of 0.05 m. Set the center of the second rectangle at half the length of the first rectangle r.
n = antenna.Rectangle(Center=[0.075,0],Length=0.05,Width=0.05);
Create and view a notched rectangle by subtracting n from r.