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Constrained Pole-Zero Synthesis of Phase-Oriented RFID Sensor Antennas

Caizzone, Stefano and Di Giampaolo, Emidio and Marrocco, Gaetano (2016) Constrained Pole-Zero Synthesis of Phase-Oriented RFID Sensor Antennas. IEEE Transactions on Antennas and Propagation, 64 (2), pp. 1-8. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/TAP.2015.2511788. ISSN 0018-926X.

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Passive sensing by means of Radiofrequency Identification has been extensively explored for various application, such as gas detection, temperature change and deformations. The sensing indicator is generally based on the amplitude and phase of the backscattered field. However, a degradation of the communication performance must be usually accepted for achieving the sensing capability. This work introduces a design method suitable for phase-based RFID sensors that permits to shape the phase response while preserving the impedance matching between the antenna and the microchip. The RFID sensor is modeled as a two-ports scatterer comprising a lumped sensor at one of the ports and a RFID chip at the other port. A pole-zero representation of the electromagnetic interaction between the reader and the RFID sensor allows to introduce a constrained design of the antenna with a full control on the sensor dynamic range and on the communication performance. The proposed method is numerically and experimentally validated by means of a pair of strongly coupled dipoles connected to a voltage-controlled varactor emulating a dynamic sensor response.

Item URL in elib:https://elib.dlr.de/97730/
Document Type:Article
Title:Constrained Pole-Zero Synthesis of Phase-Oriented RFID Sensor Antennas
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Di Giampaolo, EmidioUniv. L'Aquila, ItalyUNSPECIFIEDUNSPECIFIED
Marrocco, GaetanoUniv. Rome Tor VergataUNSPECIFIEDUNSPECIFIED
Date:February 2016
Journal or Publication Title:IEEE Transactions on Antennas and Propagation
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1-8
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:RFID, array, mutual coupling, sensors, wireless communications, Internet of Things, antenna
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Communication, Navigation and Surveillance (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Caizzone, Stefano
Deposited On:26 Jan 2016 11:00
Last Modified:27 Nov 2023 12:41

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