Figure 12
From: Efficient and Sensitive Electrically Small Rectenna for Ultra-Low Power RF Energy Harvesting
The measured, open-circuit dc output voltage versus power density of the single and the rectenna-array: two single rectennas were placed in the horizontal plane (i.e., side-by-side) at distance λ/2 and were also electronically connected in series configuration (i.e., voltage summing). The fitting curves for the both cases are also depicted: for the single rectenna is \(V=0.5872\,{S}^{0.5542}\), while for the rectenna-array \(V=1.185\,{S}^{0.5511}\), where V and S is in V and μW/cm2, respectively.
