Patent ID: 8730697

Claim:
A rectifier, comprising: a first rectification unit having an anode and a cathode, the anode being connected to a negative radio frequency (RF) port, and the cathode being connected to a positive direct current (DC) port; a second rectification unit having an anode and a cathode, the anode being connected to a positive RF port, and the cathode being connected to the positive DC port; a third rectification unit having an anode and a cathode, the anode being connected to a ground, and the cathode being connected to the negative RF port; and a fourth rectification unit having an anode and a cathode, the anode being connected to the ground, and the cathode being connected to the positive RF port, wherein the first rectification unit comprises a plurality of first diodes that are connected in parallel, and the second rectification unit comprises a plurality of second diodes that are connected in parallel.