3-D Printed Conformal Dielectric Linear-to-Circular Polarization Converters for Cylindrical and Spherical Surfaces

Autor:	Yong Yang, Xi-Bei Zhao, Xiaoning Yang, Feng Wei, Le Xu, Jian-Qiang Hou, Nankai Wu
Rok vydání:	2021
Předmět:	Fabrication Materials science business.industry Energy conversion efficiency Physics::Optics Conformal map Dielectric Converters Planar Optoelectronics Electrical and Electronic Engineering Polarization (electrochemistry) business Circular polarization
Zdroj:	IEEE Antennas and Wireless Propagation Letters. 20:2539-2543
ISSN:	1548-5757 1536-1225
Popis:	A 3D printed conformal polarization converter, based on a novel dielectric unit cell, is proposed for linear-to-circular polarization conversion. The designed dielectric unit cell comprises a cuboid-shaped dielectric block and a thin square dielectric substrate layer for ease of fabrication with 3D printing technology. Meanwhile, the unit cell can achieve linear-to-circular polarization conversion performance from 14.2 GHz to 20.1 GHz with 3-dB axial ratios (ARs) of 34% and good angular stability within 40°. Then, the unit cell is applied to design the conformal dielectric linear-to-circular polarization converters (LCPCs) for cylindrical and spherical surfaces, respectively. To verify the feasibility, three kinds of dielectric converters including planar, cylindrical, and spherical shapes are fabricated and measured. The measured results demonstrate that the proposed dielectric polarization converters with different shapes can produce almost similar linear-to-circular polarization performances with low loss, high conversion efficiency, and angular stability within 40°.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::57a80247610ac06d424e41e867fffd69 https://doi.org/10.1109/lawp.2021.3117874 Zobrazit plný text záznamu