abstract

• The authors investigate the efficiency of a series of broadband rectennas designed to harvest the free-propagating electromagnetic energy at terahertz frequencies. We analyze by simulations the case of self-complementary square-and Archimedean-spiral antennas coupled to L-shaped self-switching diodes (L-SSDs). First, the geometry (i.e., the width and length of the channel) of the L-SSD was optimized to obtain a remarkable diode-like I-V response. Subsequently, the optimized L-SSD geometry was coupled to both types of spiral antennas and their characteristic impedance was studied. Finally, the energy conversion efficiency was evaluated for both rectenna architectures. © 2017 Society of Photo-Optical Instrumentation Engineers (SPIE).

authors

• Briones E.
• Briones J.
• Cortés Mestizo Irving Eduardo
• Droopad R.
• Espinosa Vega Leticia Ithsmel
• Méndez García Víctor Hugo
• Vilchis H.

publication date

• 2017-01-01

funding provided via

• CB 2015-257358, INFR-2015-01-255489, PNCPN2014-01-248071, SNI-CVU40859  Grant

published in

• Journal of Photonics for Energy  Journal

keywords

• energy harvesting; impedance matching; self-switching diodes; spirals antennas; terahertz Antennas; Conversion efficiency; Diodes; Electromagnetic waves; Energy conversion; Energy efficiency; Energy harvesting; Impedance matching (electric); Semiconductor switches; Spiral antennas; Archimedean spiral antennas; Broadband terahertz; Characteristic impedance; Nanodiodes; Self-switching; Self-switching diodes; Tera Hertz; Terahertz frequencies; Rectennas

Digital Object Identifier (DOI)

• 10.1117/1.JPE.7.025001

start page

end page

volume

• 7

issue

• 2