A Miniaturized Meandered Dipole UHF RFID Tag Antenna for Flexible Application

Xuan, Xiuwei; Lv, Lianrong; Li, Kun

doi:10.1155/2016/2951659

Cited by 12 publications

(6 citation statements)

References 8 publications

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“…Moreover, the dependence of the phase offset on the propagation angle due to the angle-dependent radiation patterns of the antennas and tags can be neglected. This assumption is valid, given that, first, the radiation pattern of the meandered dipole tag antennas is comparable to an ideal dipole [24], [25], leading to concentrically propagated waves [26]. Second, the maximum phase change within the main lobe of the robot-mounted antennas is 3°, as found in simulations.…”

Section: A Localization Scenariomentioning

confidence: 85%

A Cost-Efficient Hybrid UHF RFID and Odometry-Based Mobile Robot Self-Localization Technique With Centimeter Precision

Kammel

Koegel

Gareis

et al. 2022

IEEE J. Radio Freq. Identif.

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This paper presents an indoor localization approach that determines the absolute position of a mobile robot platform with centimeter precision by fusing RFID localization results based on cost-effective, standard passive UHF RFID technology with the robot's odometry data. The mobile robot platform is equipped with a multistatic UHF RFID interrogation system, and several RFID tags are arbitrarily placed within the localization environment, serving as landmarks. The RFID localization concept is based on phase evaluations. To overcome the problem of ambiguous position estimations due to the 2πphase ambiguity of the RFID signal phase and mitigate the linearization problem of the nonlinear system, a novel algorithm based on an iterative multihypothesis Kalman filter is introduced. A realistic simulation setup is developed to validate the proposed filter algorithm. By tracking a UHF RFID-equipped mobile robot platform in a real-world office environment, the proposed approach is also practically tested in terms of real-time capability, everyday suitability, and multipath resistance. Given that centimeter precision is only achieved in environments with weak multipath propagation, the RFID localization results are fused with odometry data provided by the robot. This effectively compensates for offset and drift in the odometry sensor, achieving a root-mean-square localization error of 2.7 cm.

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Section: A Localization Scenariomentioning

confidence: 85%

A Cost-Efficient Hybrid UHF RFID and Odometry-Based Mobile Robot Self-Localization Technique With Centimeter Precision

Kammel

Koegel

Gareis

et al. 2022

IEEE J. Radio Freq. Identif.

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“…The input impedance of the proposed antenna in Figure 1, is given as [18] 𝑍 𝑎 = 𝑅 𝑎 + 𝑗𝑋 𝑎 = 𝑍 𝑡 + 𝑍 𝑐𝑡𝑝 + (2𝜋𝑓𝑀) 2 𝑍 𝑚 (1) where Zt is the T-match feeder impedance, Zctp is the impedance of the capacitive tip loading, Zm is the meandered line impedance and M is the inductive mutual coupling between the T-match feeder and radiating body including meandered line and capacitive tip loading. The transfer power coefficient,  is given by [19] :…”

Section: Figure 1 Proposed Rfid Tag Antenna Configurationmentioning

confidence: 99%

Design of a Flexible T-Matched Feed UHF RFID Tag Antenna

Miswadi

Rahman

Subahir

et al. 2022

J. Phys.: Conf. Ser.

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A flexible radio frequency identification (RFID) tag antenna with a T-match feeder is proposed in this paper. The T-match feed acts as the conjugate network matching of the tag antenna and 0.99 of power transfer coefficient was achieved. By incorporating a meander line and capacitive tip loading technique, the compact size is realized with a wide bandwidth of 44MHz that can cover the RFID spectrum allocated for the Malaysia region, from 919 to 923 MHz. The proposed antenna is printed on the flexible polyethene terephthalate (PET) substrate with a dimension of 90mm × 24mm × 0.143mm. By employing 4W EIRP power, the detection distance of 29.15m in free space. The proposed meandered line and capacitive tip loading tag antenna with T-match feed line is beneficial to be part of the RFID systems because of their compactness, wide bandwidth and high-power transfer coefficient.

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“…Dipole antenna is a widely used in RFID tags due to its simplicity and omnidirectional pattern [4][5][6][7][8]. Dipole antenna is basically designed with two arms wire at half wavelength in total length at the target frequency.…”

Section: Meandered Dipole Tag Antennamentioning

confidence: 99%

Evaluation of Double Loop IC Module for Inductive Coupled Fed RFID Tag Wire Embedded Antenna

Murad

Salleh

Azmi

et al. 2020

IJEEI

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This paper presents an evaluation on double loop integrated circuit module for inductive couple fed RFID Tag. The inductive couple feed gives advantage especially for flexible wire embedded antenna in controlling the manufacturing varians as the chip is not directly connected to the antenna. Thus electrostatic discharged effect and manufacturing errors can be minimized. An inductor loop is directly connected to the RFID chip before it is placed to indirectly coupled the energy from a meandered dipole antenna. The coupled energy should be enough to turn on the chip to communicate with the reader. The inductive coupled energy is achieved by manipulating the near field magnetic field between the antenna body and the inductor loop. To evaluate the performance, the antenna and the inductive feeding loop is designed to operate at RFID UHF band (860 MHz -960 MHz) and simulated using CST software. The antenna body impedance is evaluated to match the impedance of the chip and the loop. It is confirmed that the double loop inductor has higher inductance values and thus should be counted in conjugate impedance between the antenna body and the chip module. The tag with overall dimension of 60 mm x 16 mm can be read at distance at least 9 meters through out the band.

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A Miniaturized Meandered Dipole UHF RFID Tag Antenna for Flexible Application

Cited by 12 publications

References 8 publications

A Cost-Efficient Hybrid UHF RFID and Odometry-Based Mobile Robot Self-Localization Technique With Centimeter Precision

A Cost-Efficient Hybrid UHF RFID and Odometry-Based Mobile Robot Self-Localization Technique With Centimeter Precision

Design of a Flexible T-Matched Feed UHF RFID Tag Antenna

Evaluation of Double Loop IC Module for Inductive Coupled Fed RFID Tag Wire Embedded Antenna

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