27 April 2017 Efficiency of broadband terahertz rectennas based on self-switching nanodiodes
Edgar Briones, Irving E. Cortes Mestizo, Joel Briones, Ravindranath Droopad, Leticia L. Espinosa-Vega, Heber Vilchis, Victor H. Mendez-Garcia
Author Affiliations +
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) 1947-7988/2017/$25.00 © 2017 SPIE
Edgar Briones, Irving E. Cortes Mestizo, Joel Briones, Ravindranath Droopad, Leticia L. Espinosa-Vega, Heber Vilchis, and Victor H. Mendez-Garcia "Efficiency of broadband terahertz rectennas based on self-switching nanodiodes," Journal of Photonics for Energy 7(2), 025001 (27 April 2017). https://doi.org/10.1117/1.JPE.7.025001
Received: 16 December 2016; Accepted: 31 March 2017; Published: 27 April 2017
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CITATIONS
Cited by 3 scholarly publications.
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KEYWORDS
Antennas

Diodes

Energy efficiency

Terahertz radiation

Energy harvesting

Metals

Heterojunctions

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