In this paper, the first demonstration of a bow-tie antenna integrated with a metal-insulator-metal (MIM) diode for electromagnetic energy harvesting in the V-band (i.e., 40-75 GHz) is presented. We have designed, simulated, fabricated, and fully characterized a 60-GHz rectifying antenna (rectenna) based on a vertical Au-HfO₂-Pt MIM diode with reduced differential resistance. The dielectric used for the MIM structure is a 6-nm-thick amorphous HfO₂ grown by atomic layer deposition. For the fabricated MIM device, we report here a current density of 3 x 10⁴ A/cm² that exceeds the previous values presented in the literature. The vertical MIM-based rectenna is able to efficiently harvest up to 250 μV from an impinging modulated millimeter-wave signal with -20 dBm of available power, thus offering a voltage responsivity of over 5 V/W. The reported results indicate that the proposed approach is well suited for future low-power solutions much sought after for the energetically autonomous 5G terminal equipment.
Aldrigo, M., Dragoman, M., Modreanu, M., Povey, I., Iordanescu, S., Vasilache, D., et al. (2018). Harvesting Electromagnetic Energy in the $V$-Band Using a Rectenna Formed by a Bow Tie Integrated With a 6-nm-Thick Au/HfO₂/Pt Metal-Insulator-Metal Diode. IEEE TRANSACTIONS ON ELECTRON DEVICES, 65(7), 2973-2980 [10.1109/TED.2018.2835138].
Harvesting Electromagnetic Energy in the $V$-Band Using a Rectenna Formed by a Bow Tie Integrated With a 6-nm-Thick Au/HfO₂/Pt Metal-Insulator-Metal Diode
Shanawani, Mazen;Masotti, Diego
2018
Abstract
In this paper, the first demonstration of a bow-tie antenna integrated with a metal-insulator-metal (MIM) diode for electromagnetic energy harvesting in the V-band (i.e., 40-75 GHz) is presented. We have designed, simulated, fabricated, and fully characterized a 60-GHz rectifying antenna (rectenna) based on a vertical Au-HfO₂-Pt MIM diode with reduced differential resistance. The dielectric used for the MIM structure is a 6-nm-thick amorphous HfO₂ grown by atomic layer deposition. For the fabricated MIM device, we report here a current density of 3 x 10⁴ A/cm² that exceeds the previous values presented in the literature. The vertical MIM-based rectenna is able to efficiently harvest up to 250 μV from an impinging modulated millimeter-wave signal with -20 dBm of available power, thus offering a voltage responsivity of over 5 V/W. The reported results indicate that the proposed approach is well suited for future low-power solutions much sought after for the energetically autonomous 5G terminal equipment.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
