Low‐profile CP RFID hard tag antenna with short‐circuited microstrip‐fed line mounted on metallic plane

Chen, Chien‐Hung; Huang, Shih‐Ting

doi:10.1002/mmce.21504

Cited by 5 publications

(5 citation statements)

References 17 publications

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“…In addition to its compactness, it has a simple structure that does not contain any short-circuit elements (vias and pins), which makes it easy to manufacture with a reduced cost. In terms of reading distance, our tag has a longer reading range than the tags published in [23,24], and almost similar to that of [25]. We can conclude that our tag offers an optimal reading range compared to its miniature size.…”

Section: Theoretical and Measured Read Rangementioning

confidence: 61%

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Analysis, Design, and Manufacture of a Compact UHF RFID Tag Antenna for Operating in a Metallic or Non-Metallic Environments

Hachimi¹,

Farchi²

2020

IJIES

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A miniaturized tag antenna is presented in this paper, for operating in the RFID UHF American band, in free space or in a metallic environment. The proposed antenna is printed on a single layer FR4 substrate, and designed first to work in a free space. The shape of the π-match allowed us to achieve a good matching between the antenna impedance and that of the chip. The correspondence between simulation results in CST and HFSS pushed us to manufacture a prototype of our tag. After that, we simulated the proposed antenna in a metallic area, by adding a square metal plate separated with the antenna by a foam-layer, in order to test the performance of the tag in this environment. An optimization procedure enabled us to achieve a good performance when operating in metallic surroundings. Finally, we tested the reading range of the manufactured tag. We obtained a good range of about 6.5m. The final design of our proposed tag has a simple structure, a dimension of 51×26,63×0.8 3 and which is reduced by 88,64% compared to the calculated theoretical dimensions of a patch antenna operating at the resonant frequency of 915 MH.

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Section: Theoretical and Measured Read Rangementioning

confidence: 61%

“…Printed inverted-F antenna (PIFA) is one of the commonly used structure for metal objects tagging. However, the fabrication cost for this antenna is high due to the existence of a shorting plate or shorting pin in the antenna design and they have also the drawback of a large size [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Analysis, Design, and Manufacture of a Compact UHF RFID Tag Antenna for Operating in a Metallic or Non-Metallic Environments

Hachimi¹,

Farchi²

2020

IJIES

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“…Radio frequency identification (RFID) tags have been used in a wide range of applications, such as in toll tag systems, distribution logistics, the Internet of things, supply chain management, and security systems. 1,2 Generally, tag antennas comprise an antenna and an integrated circuit (IC) chip and can operate in the ultrahigh frequency band (UHF). Thus, the reading range can be extended with a low-cost component.…”

Section: Introductionmentioning

confidence: 99%

Compact shorted C‐shaped patch antenna for ultrahigh frequency radio frequency identification tags mounted on a metallic plate

Nguyen

Lin

Chang

et al. 2021

Int J RF Microw Comput Aided Eng

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This paper describes an ultrahigh frequency (UHF) tag antenna mounted on a metallic plate for radio frequency identification (RFID). The impedance of the proposed antenna can be tuned using various methods. The compact patch antenna consists of a C-shaped resonator and a ground plane connected to a small shorting wall and is connected to a feeding loop in the middle of the Cshaped resonator. Etching a couple of slits close to the shorting wall and a slot in the center of the C-shaped resonator provided a flexible method for adjustment to match the conjugate impedance with the UCODE 8/8 m chip (13 − j191 Ω at 915 MHz). The optimal design with an overall size of 30 × 30 × 3 mm 3 (0.092 λ 0 × 0.092 λ 0 × 0.0092 λ 0 ) yielded a high power transmission coefficient of 91% and reading range of 6.4 m for the effective isotropic radiated power (EIRP) of 4.0 W when the tag antenna was mounted on a 220 × 220 mm 2 metal plate. The proposed antenna was designed at standard frequency bands of the Federal Communications Commission (FCC, 902-928 MHz) for North America and Taiwan. Antenna fabrication and testing were performed, which revealed that the measured data were in good agreement with the simulation results.

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“…Integrated impedance matching techniques have feed and tag printed on the same patch. These techniques include inductive coupled feed, 14‐17 patch incorporated with tuning combs and slots feed structure, 18,19 short circuited capacitively coupled feed to patch, 20,21 embedding matching structures with dual symmetrical patch, 22 T‐match feed network, 5,23,24 and so forth. Among all these techniques, broadband T‐match network techniques provide independent tuning capability of input impedance and wide impedance bandwidth with increased read range 4,6 .…”

Section: Introductionmentioning

confidence: 99%

Linearly tapered meander line broadband monopole tag antenna with T‐match for Ultra High Frequency Radio Frequency Identification applications

Bansal

Sharma

Khanna

2020

Int J RF Microw Comput Aided Eng

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In this paper, a compact, broadband linearly tapered meandered monopole tag antenna for UHF-RFID is designed and optimized using particle swarm optimization (PSO) algorithm. An inductive T-match network is utilized for impedance matching with capacitive Higgs-4 chip. The optimization goal of PSO was conjugate matching and in consequence the maximization of read range. Equivalent circuit of the proposed tag antenna is derived using ADS software to validate its impedance characteristics. The performance of the proposed tag in terms of tag power sensitivity, read range, realized gain, and differential radar cross section has been experimentally characterized. To check the tolerance of the designed tag to various object platforms, its read range performance is also verified on objects like wood, fiber, plastic, and so forth. Furthermore, read pattern of the proposed tag has been measured and found to have figure of eight in E-plane and omnidirectional in H-plane. Experimental results reveal that the proposed tag covers 865-867 MHz (ETSI band, Europe) and 902-928 MHz (FCC band, United States) both major RFID bands with a read range of 10 and 12 m, respectively. The proposed tag has 2060 mm 3 of volumetric size with maximum measured readable distance of 12 m with EIRP of 3.28 W. K E Y W O R D S differential radar cross section (ΔRCS), radio frequency identification (RFID) tag antenna, read range, tag sensitivity, ultra-high frequency (UHF)

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Low‐profile CP RFID hard tag antenna with short‐circuited microstrip‐fed line mounted on metallic plane

Cited by 5 publications

References 17 publications

Analysis, Design, and Manufacture of a Compact UHF RFID Tag Antenna for Operating in a Metallic or Non-Metallic Environments

Analysis, Design, and Manufacture of a Compact UHF RFID Tag Antenna for Operating in a Metallic or Non-Metallic Environments

Compact shorted C‐shaped patch antenna for ultrahigh frequency radio frequency identification tags mounted on a metallic plate

Linearly tapered meander line broadband monopole tag antenna with T‐match for Ultra High Frequency Radio Frequency Identification applications

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