  This paper presents the design and analysis of a superdirective rectenna
optimized for enhanced RF-to-DC efficiency and realised gain, featuring direct
impedance matching between the antenna and the rectifier. Employing passively
loaded, low profile strip dipoles on a low-loss substrate, the rectenna
achieves a realised gain of 6.9 dBi and an RF-to-DC efficiency of 22.1% at -20
dBm.
