Characterization of coupling and quantum efficiencies in solar rectennas

Author

Sabaawi, Ahmed M. A. ; Tsimenidis, Charalampos C. ; Sharif, Bayan S.

Author_Institution

Sch. of Electr. & Electron. Eng., Newcastle Univ., Newcastle upon Tyne, UK

fYear

2013

fDate

11-12 Nov. 2013

Firstpage

363

Lastpage

368

Abstract

In this paper, a study is conducted into optimization of quantum and coupling efficiency of solar rectennas. The optical antenna impedance is calculated using Method of Moment, whereas the Metal/Insulator/Metal (MIM) diode characteristics are calculated using Simmons´ formula of tunneling current. The diode resistance and the responsivity have been determined based on the I-V characteristics of the MIM diode. Additionally, the quantum and coupling efficiency have been calculated from the diode and antenna resistances as well as the diode responsivity. Furthermore, both efficiencies have been optimized by finding the optimum values of the insulator layer thickness and the metal work function difference.

Keywords

diodes; electric impedance; insulators; rectennas; tunnelling; I-V characteristics; MIM diode characteristics; Simmon formula of tunneling current; antenna resistance; coupling efficiency; diode resistance; metal-insulator-metal diode characteristics; method of moment; optical antenna impedance; quantum efficiency; solar rectenna; Couplings; Insulators; Metals; Optical imaging; Rectennas; Resistance; Energy harvesting; MIM diodes; Optical antennas; Solar rectennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Conference (LAPC), 2013 Loughborough

Conference_Location

Loughborough

Type

conf

DOI

10.1109/LAPC.2013.6711921

Filename

6711921