RF characterization of zero-bias planar nanodiodes coupled with a narrowband dipole antenna

In this report, we developed a simple rectenna (rectifying antenna) which consists of a large array of unipolar nanorectifiers, namely the self-switching diodes (SSDs), coupled to a narrowband dipole antenna with resonant frequency of 890 MHz. Due to the planar nature of the SSD´s structure, the large array was able to be fabricated in a single lithography step in which the layers for interconnection were not required. This allows for a simple and low-cost fabrication process. The RF characterization of the SSD-based rectenna was performed in the near- and far-field regions at unbiased condition which offers less consumption of the dc power.