Platform tolerant dual‐band UHF‐RFID tag antenna with enhanced read range using artificial magnetic conductor structures

Bansal, Aarti; Sharma, Surbhi; Khanna, Rajesh

doi:10.1002/mmce.22065

Cited by 14 publications

(10 citation statements)

References 26 publications

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“…The proposed tag has smaller dimensions and higher gain as compared to tags designed in References 3,16,24,29,41, and 42 Also, the proposed tag exhibits higher measured read range than tags in References 3,16,24,and 41‐43 except References 28 and 29. However, the tags reported in References 28 and 29 have slightly larger read range as compared to the proposed tag due to higher EIRP.…”

Section: Experimental Characterizationmentioning

confidence: 84%

“…τ is the power transfer coefficient (PTC) as defined in (9) and λ 0 is the wavelength at f 0 . PTC indicate the amount of power transferred from tag to chip 24 and is calculated using

τ = 1 - {|S_{11}|}^{2} = \frac{4 * R_{chip *} R_{in}}{{|Z_{chip} + Z_{in}|}^{2}}, 0 \leq τ \leq 1

…”

Section: Experimental Characterizationmentioning

confidence: 99%

“…However, the tags reported in References 28 and 29 have slightly larger read range as compared to the proposed tag due to higher EIRP. Even though the tags in References 3,24,41,and 42 cover both UHF‐RFID bands but they have larger volumetric size and smaller read range. Furthermore, the volumetric size of the tags in References 15,37,and 43‐45 is smaller and gain of References 15 and 45 is slightly higher than the proposed tag but still all of them cover single UHF‐RFID band.…”

Section: Experimental Characterizationmentioning

confidence: 99%

“…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%

See 3 more Smart Citations

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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Section: Experimental Characterizationmentioning

confidence: 84%

“…τ is the power transfer coefficient (PTC) as defined in (9) and λ 0 is the wavelength at f 0 . PTC indicate the amount of power transferred from tag to chip 24 and is calculated using

τ = 1 - {|S_{11}|}^{2} = \frac{4 * R_{chip *} R_{in}}{{|Z_{chip} + Z_{in}|}^{2}}, 0 \leq τ \leq 1

…”

Section: Experimental Characterizationmentioning

confidence: 99%

Section: Experimental Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Self Cite

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show abstract

“…Such antennas consist of a radiating patch on the top and an AMC ground plane installed at the bottom. [5][6][7][8] However, most AMC antennas have a complex layout, large size, and are not cost effective. Therefore, these antennas are impractical for applications that require a compact antenna.…”

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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Back‐lobe mitigation of a compact DGS microstrip patch antenna using an artificial magnetic conductor surface

Behera

Barad

Behera

2021

Int J RF Mic Comp-Aid Eng

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This work proposes a novel compact artificial magnetic conductor (AMC) surface backed microstrip antenna of dimension (0.29λ 0 Â 0.17λ 0 Â 0.015λ 0 ) for improving the antenna radiation characteristics. The microstrip antenna considered here for performance improvement has a defected ground plane; thus, giving rise to undesired back-lobe radiation. Thanks to the, in-phase reflection characteristics of the AMC surface, gain improvement of more than 3 dBi has been achieved with a front-to-back lobe ratio improvement of 12 dB. This structure resonates at 5.8 GHz with an impedance bandwidth improvement of 13%. The overall antenna dimensions are (0.67λ 0 Â 0.8λ 0 Â 0.13λ 0 ), where λ 0 is the free space wavelength. To prove the concept, a physical prototype of the proposed antenna structure has been fabricated and the return loss, radiation pattern and gain have been verified. The obtained results are satisfactory and matching with the estimated results.

show abstract

Platform tolerant dual‐band UHF‐RFID tag antenna with enhanced read range using artificial magnetic conductor structures

Cited by 14 publications

References 26 publications

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

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

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

Back‐lobe mitigation of a compact DGS microstrip patch antenna using an artificial magnetic conductor surface

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