Before revision: Planar implementation A: printed inverted-F antenna, B: meandered printed inverted-F antenna: C: patch antenna: D: Planar inverted-F antenna (PIFA) 20pxBoard without ground plane20pxBoard with ground plane20pxAntenna feed pin20pxGround pin A planar inverted-F antenna (PIFA) is used for wireless circuitry implemented in microstrip.
After revision: Planar implementation printed inverted-F antenna, meandered printed inverted-F antenna: patch antenna: Planar inverted-F antenna (PIFA) 20pxBoard without ground plane20pxBoard with ground plane20pxAntenna feed pin20pxGround pin A planar inverted-F antenna (PIFA) is used for wireless circuitry implemented in microstrip.