New design antenna for RFID UHF tags

Ibrahiem, Ahmed; Vuong, Tân-Phu; Ghiotto, Anthony; Tedjini, Smaïl

doi:10.1109/aps.2006.1710797

Cited by 13 publications

(7 citation statements)

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“…Surface-plasmon waves in the visible and the near-infrared regimes are being exploited nowadays for sensing, imaging, and other applications [2][3][4][5]. Structurally chiral mediums exist as chiral nematic and chiral smectic liquid crystals [6] as well as chiral sculptured thin films (STFs) [7].…”

Section: Introductionmentioning

confidence: 99%

“…Selection of designed tag antenna with good characteristics for the UHF and microwave RFID system is a very important project. Dipole-type and patch-type designed antennas made RFID tag antenna main used and modified pliable shape for person customization [2][3][4][5]. The dipole antenna for RFID tag is good candidate owing to their omnidirectional radiation pattern, simple structure, low cost, and ease of construction.…”

mentioning

confidence: 99%

“…The dipole antenna for RFID tag is good candidate owing to their omnidirectional radiation pattern, simple structure, low cost, and ease of construction. Conventionally, design shape of the dipole antenna by printed microstrip lines such as folded shape, meander shape, and slot-coupled shape have attracted increasing attention due to their low profile, reduced size, and resonance frequency for operating band [2][3][4][5]. However, a fractal shape of technology has been used to create wide-band or multiband antenna.…”

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confidence: 99%

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A fractal dipole tag antenna for RFID dual‐band application

Lee

Sun

2008

Micro & Optical Tech Letters

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Results obtained for these two methods are good in track. Based on this point, RBFNN model can provide automatic estimation of local SAR values in the working frequency values and requires coordinate location for each layer. This simulation was realized for three-layer cylindrical human model; however, this method can be easily used for different structures.Variation of maximum error levels which occur in the output of the network is shown in Figure 5. We have reached to these values by choosing maximum values between RBFNN results and FDTD results for each frequency in test step. Accuracy levels of the network changed with using different frequency values. In the designed model, the error level can be reduced by using an optimum sigma (width of the Gauss Kernel function) value. The variations are given in Figures 4 and 5 for ϭ 50.The test accuracy of RBFNN changes depending on the sigma parameter. The variation of maximum error values which is calculated for all frequency values in the test data with respect to sigma parameter is shown in Figure 6. The sigma is an effective parameter for the performance of network. The determination of optimum sigma values is important for the accuracy of the system. In this work, Gaussian Kernel width was determined experimentally for maximum performance. CONCLUSIONIn this study, a new approach based on RBFNN was presented for the estimation of local SAR values for the three-layer cylindrical human model. The target data were determined with FDTD solution, which was used to determine the local SAR, when a plane wave hits the PML-surrounded three-layer cylinder. The results show that RBFNN is an effective model for this problem space, and RBFNN design solutions are well matched with the FDTD solution results. This method was proposed for the three-layer cylindrical human model; however, this topology can be applied for different structures. ACKNOWLEDGMENTThis research has been supported by the Research Project Department of Akdeniz University, Antalya, Turkey. Hot embossing, also known as nano-imprinting, is an emerging lithographic technology that promises high-throughput patterning of micro-and nano-scale structures [4 -6]. We have previously shown [7,8] that hot embossing can be used to define micron-scale patterns, with submicron definition, in bulk chalcogenide glass substrates and in chalcogenide glass thin-films sputtered onto semiconductor wafer substrates. In this letter, we describe the realization of single-mode optical rib waveguides in chalcogenide glasses by a new one-step process, where As 40 Se 60 fibers are hot-pressed between a silicon mold (patterned with the inverse of the required rib structures) and a Ge 17 As 18 Se 65 glass substrate. In this approach, both the thin film and rib structures are defined together, so avoiding the need for a separate thin film deposition step. CORE/CLADDING MATERIAL SELECTION AND PREPARATIONTo fabricate hot-embossed chalcogenide glass waveguides, the chosen core/cladding materials must have suitable refractive indices, matched...

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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A fractal dipole tag antenna for RFID dual‐band application

Lee

Sun

2008

Micro & Optical Tech Letters

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“…The antenna is then connected with a XRAG2 chip having the input impedance of 10-245j Ohms at 915 MHz. However, in the process of making contact with the antenna an appearing parasitic capacitance can increase this impedance [2,3,4]. Therefore, we choose the chip impedance of 20-255j Ohms at 920 MHz for the design.…”

Section: The Antenna Design Proceduresmentioning

confidence: 99%

Design and fabrication of UHF RFID tag

Vuong

Phan

Nguyen-Tran

et al. 2011

The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)

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A design procedure of a special UHF RFID tag antenna is presented in this paper. The final antenna is matched well with the ST Microelectronics XRAG2 chip at the intended resonant frequency with bandwidth of 33 MHz and has omnidirectional beam patterns with gain of 1.86 dBi. A prototype has been successfully fabricated, tested by Rohde & Shwarz ZVB Vector Network Analyzer and showed good fit with the simulation results.

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“…Bu sayede okuyucu anten tarafında ya bir radiator (verici anten) ya da coupling (kuplör) olarak algılanırlar. Algılanan bu veri, via' da modüle edilerek diyaframa geri yansıma sağlanır [2,3,4].…”

Section: Introductionunclassified

Dipole antenna designs for UHF RFID passive tag

Keskin

Imeci

Rahman

et al. 2014

2014 22nd Signal Processing and Communications Applications Conference (SIU)

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ÖZETÇE RFID sistemler, hizmet sektörü, satın alma ve lojistik dağıtım, endüstri, imalat ve malzeme akış sistemleri gibi birçok alanda, insanlar, hayvanlar ve ürünler hakkında bilgi sağlama amacı ile sıklıkla kullanılır hale gelmiştir. Bu yüzden, bu sistemlerin verimliliğini arttıracak çalışmaların sayısı da artmıştır. Bu çalışmalara ek olarak, bir işareti dar bantta çok fazla güç kullanarak iletmenin aksine geniş band yardımı ile aynı işareti bu banda yayarak, veri iletiminin iyileştirimesi için çeşitli çalışmalar yapılmaktadır. Ayrıca, geniş band teknolojisi kullanıldığı takdirde daha az enerji harcanmış olur. Bu çalışmada, 800-1400 MHz' de UHF RFID frekansında çalışan, geniş frekans bandına sahip olan, aynı zamanda RFID etiket tasarımı için pasif dipol anten tasarımları yapılmıştır. Dipol anten tasarımı için, genellikle kullanılan mikroşerit yama anten tasarımı yapılmıştır. RFID çalışmasında EPC Gen2 (EPCglobal UHF sınıf 1 jenerasyon 2) ISO/IEC 18000 standartını desteklemektedir. ABSTRACTUse of RFID systems have become popular in many areas such as service, purchase and distribution logistics, manufacturing and material flow to provide information about people, animals and products. Hence, to improve the efficiency of these systems, the amount of research work in this field is increasing. In addition to these works, a considerable amount of research has also been conducted to spread the signal to wideband in order to improve the data transfer consuming less power instead of sending the signal in narrow band with more power. Furthermore, energy consumption can be reduced by using wideband technology. In this study, the goal is to design an antenna that operates in the range 800-1400MHz UHF RFID frequencies with wideband. To design the dipole antenna that can be operated across wide frequency bands, a patch antenna is used. These passive dipole antennas are designed for RFID tags. The EPC Gen2 (EPCglobal UHF Class 1 Generation 2) standard is supported in ISO/IEC 18000 for RFID.

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New design antenna for RFID UHF tags

Cited by 13 publications

References 1 publication

A fractal dipole tag antenna for RFID dual‐band application

A fractal dipole tag antenna for RFID dual‐band application

Design and fabrication of UHF RFID tag

Dipole antenna designs for UHF RFID passive tag

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