Shield for a wireless power transmitter

A method of manufacturing a power transmitting unit, comprising:

• forming a transmit coil configured to generate a magnetic field to wirelessly power a device within an active wireless charging area;
• conductively coupling a power generating circuitry to the transmit coil, the power generating circuitry to deliver current to the transmit coil to generate the magnetic field at an operating frequency;
• and
• disposing a patch array in parallel with the transmit coil to reduce a strength of the magnetic field at frequencies outside of the operating frequency during operation of the power transmitting unit.

A wireless charger, comprising:

• a transmit coil configured to generate a magnetic field to wirelessly power a device within an active wireless charging area;
• a power generating circuitry to deliver current to the transmit coil to generate the magnetic field at an operating frequency;
• and
• a patch array disposed in parallel with the transmit coil to reduce a strength of the magnetic field at frequencies outside of the operating frequency during operation of the wireless charger.