Abstract
Polarization converters play an important role in modern communication systems, but their wide and multiple band operation to facilitate volume and size reduction is quite challenging. In this paper, a triple-band Linear Polarization to Circular Polarization (LP-to-CP) converter is presented using a novel design procedure based on geometric parameters optimization of a metasheet. The proposed converter is ultrathin, wideband, stable over a wide range of incident angles, and polarization diverse. The conductor layer of metasheet is patterned with a square ring and five square-patches diagonally intersecting each other. To validate the proposed method, an LP-to-CP convertor in X-band (7.3~9.6 GHz) and dual Ka-bands (25.4~31.4 GHz, 35.4~42.2 GHz) is presented. The performance is quite stable in wide range of frequencies and against the variation of incident angles from −25° to 25°. After performing model-based theoretical paradigm analysis, and full-wave simulation and optimization, the converter is fabricated and the measurements are performed inside the anechoic chamber. The measured results, close to simulation results, depict the validity and reliability of the proposed design.
Highlights
The ever increasing demand for high-speed and high-capacity communication prompts advancements in 5th generation (5 G) and 6th Generation (6 G) wireless communication
Rare work has been reported for triple-band polarization conversion operation[41,42,43,44,45]
For the ease of understanding, we have shown the strength of current vectors at the center for Fig. 7(b),(d) by a blue arrow
Summary
The ever increasing demand for high-speed and high-capacity communication prompts advancements in 5th generation (5 G) and 6th Generation (6 G) wireless communication. Liu et al.[41] presented the design of reflection-based multiband polarization converter having dual-band LP-to-CP conversion and single-band cross-polarization conversion using tri-layered metasurface based structure. All these proposed tri-band polarization converters[41,42,43,44,45] were based on reflection modes Such converters tend to block the feeding signals and increase the overall profile for the antenna systems. Since the structure is based on a single dielectric layer, it makes it an ultrathin device It works over 19% to 20% bandwidth for all the tree bands of operation which is the widest among other reported multiband transmission based polarization conversion devices. The outgoing circular polarizations in second and third bands are orthogonal to the first band which makes it a good candidate for applications requiring polarization diversity
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
