Design and Characterization of PLA-based Wideband 3D-Printed Discone Antenna

Munir, Achmad; Asthan, Rheyuniarto Shalendar; Prananto, Haryo Dwi; Oktafiani, Folin

doi:10.1109/ap-s/usnc-ursi47032.2022.9886546

Cited by 6 publications

(1 citation statement)

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“…This allows 3D shapes as well. The literature mentions results on printed antennas in 3D polymer structures [5,[40][41][42][43][44][45][46], but to the best of our knowledge, only one author [8] mentioned the fabrication of rectifier on polymer substrate using resin, and none on PLA. PLA as the chosen polymer for substrate has been primarily identified in terms of RF properties to support design of a rectenna.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Polylactic Acid Polymer as a Substrate in Rectenna for Ambient Radiofrequency Energy Harvesting

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Gerges

Bevilacqua

et al. 2023

JLPEA

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This work details the design and experimental characterization of a 2D rectenna for scavenging radio frequency energy at 2.45 GHz (WiFi band), fabricated on polylactic acid polymer (PLA) using a plastronics approach. PLA is the RF substrate of both antenna and rectifier. The two transmission line (TTL) approach is used to characterize the substrate properties to be considered during design. A linearly polarized patch antenna with microstrip transmission feeding is connected to a single series diode rectifier through a T-matching network. The antenna has simulated and measured gain of 7.6 dB and 7.5 dB, respectively. The rectifier has a measured DC output power of 0.96 μW at an optimal load of 2 kΩ under RF input power of −20 dBm at 2.45 GHz. The power conversion efficiency is 9.6% in the latter conditions for a 54 × 36 mm patch antenna of a 1.5 mm thick PLA substrate obtained from additive manufacturing. The power conversion efficiency reaches a value of 28.75% when the input power is −10 dBm at 2.45 GHz. This corresponds to a peak DC power of 28.75 μW when the optimal load is 1.5 kΩ. The results compare significantly with the ones of a similar rectenna circuit manufactured on preferred RF substrate.

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