This can cause a variety of issues during PCB layout if you don’t plan properly ... sometimes unexpectedly. An example of how the return path can be affected by a hole in the ground plane ...
It covers a range of examples of poor design ... Ultimately, the best PCB antenna design is one where there is no nearby copper fill, and there are no traces running near or on layers below ...
OKI Circuit Technology has announced a new printed circuit board (PCB) design that can boost component ... It gives the example of a stepped coin with a diameter of 7mm at the bonding surface ...