Publisher's Synopsis
A frequency reflecting unit is provided. The frequency reflecting unit is used as a portion of a frequency reflector. The frequency reflecting unit with a three-dimensional structure includes a metal pattern and at least one via. The metal pattern is disposed on a metal layout layer defined on one side of the frequency reflecting unit. One end of the via is disposed corresponding to the metal pattern. The via forms a non-zero angle with the metal layout layer. The other end of the via is an open circuit.
