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Polarization Conversion from a Two-Port Impedance Loaded Tag

Abstract : In this paper, we propose a Polarization Diversity scheme based on a multiport microstrip patch antenna as a batteryless backscattering target using a simple 4-resistance load arrangement. When illuminated by circularly-polarized (CP) field, 4 polarization states are achieved, namely Vertical, Horizontal, Left-Handed and Right-Handed (VP, HP, LHCP and RHCP). For CP responses, Axial Ratio (AR) inferior to 1.5 dB and, for Linear Polarization (LP), more than 25 dB performances have been experimentally validated. The LHCP to LHCP conversion as a particularly advantageous attainment for better indoor propagation. The load is part of a Coplanar Transmission Line (CPTL) integrated to the ground of the tag. This solution can be easily integrated to already existing RFID systems
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https://hal-cea.archives-ouvertes.fr/cea-03747371
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Submitted on : Monday, August 8, 2022 - 11:00:09 AM
Last modification on : Thursday, August 18, 2022 - 3:53:06 PM

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Luis Felipe Fonseca Dias, Camille Jouvaud, Christophe Delaveaud, Hervé Aubert. Polarization Conversion from a Two-Port Impedance Loaded Tag. EUCAP 2022, Mar 2022, Madrid, Spain. ⟨10.23919/EuCAP53622.2022.9769597⟩. ⟨cea-03747371⟩

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