The present disclosure involves a programmer configured to program an implanted medical device. The programmer includes a circuit board and first and second wireless communication devices located on the circuit board. The first wireless communication device is configured to operate in a first frequency band. The second wireless communication device is configured to operate in a second frequency band different from the first frequency band. The first and second wireless communication devices are each configured to communicate wirelessly with the implanted medical device. The programmer includes a first group of antennas coupled to the first wireless communication device. The antennas in the first group have first different positions on the circuit board. The programmer includes a second group of antennas coupled to the second wireless communication device. The antennas in the second group have second different positions on the circuit board.