scholarly journals CHIP IMPEDANCE MATCHING FOR UHF RFID TAG ANTENNA DESIGN

2008 ◽  
Vol 81 ◽  
pp. 359-370 ◽  
Author(s):  
Chye-Hwa Loo ◽  
Khaled Elmahgoub ◽  
Fan Yang ◽  
Atef Z. Elsherbeni ◽  
Darko Kajfez ◽  
...  
2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Lingfei Mo ◽  
Chenyang Li

Planar UHF RFID antimetal tag can be widely used for the metallic products or packages with metal material inside. A double loop inductive feed planar patch antenna is proposed for UHF RFID tag mounted on metallic objects. Compared to conventional microstrip antennas or PIFA antennas used for UHF RFID tags, the double loop inductive feed patch antenna has a planar structure, with no short via or short wall, which could decrease the manufacturing cost of the tags. The double loop inductive feed structure also increases the radiation performance of the planar antenna. Moreover, the double loop inductive feed structure makes the impedance of the patch antenna be tuned easily for conjugate impedance matching.


Author(s):  
Abubakar Sharif ◽  
Jun Ouyang ◽  
Hassan Tariq Chattha ◽  
Muhammad Ali Imran ◽  
Qammer Hussain Abbasi

2014 ◽  
Vol 541-542 ◽  
pp. 458-461
Author(s):  
Pu Yu Duan ◽  
Dong Wang

Cylinder is a common object and used in logistics industry, such as liquid container like wine. The performance of tags that are used on these objects declines, especially the read range and the radiation pattern of the tag. In this paper, a type of UHF tag antenna directly mountable on the cylinder surface. In order to reduce the impact of the deformation, the tag is designed with meander-line but not symmetrical. Antenna is combined with T-matching network to ensure good impedance matching. Compared with the basic dipole antenna tag both cylinder and plane surface, we can get the prominent feature of the tag proposed in this paper.


2021 ◽  
Author(s):  
Chow-Yen-Desmond Sim ◽  
Tzu-Wei Huang ◽  
Yu-Chieh Hsuan ◽  
Shun-Yu Tsai ◽  
Chuan-Kuei Weng

2013 ◽  
Vol 56 (1) ◽  
pp. 55-57 ◽  
Author(s):  
Zhi-Jun Tang ◽  
Xiao-Feng Wu ◽  
Jie Zhan ◽  
Shi-Gang Hu
Keyword(s):  
Uhf Rfid ◽  

2014 ◽  
Vol 1030-1032 ◽  
pp. 1247-1250
Author(s):  
Ya Juan Xie ◽  
Cai Feng Liu

This paper introduces the characteristics of passive uhfrfid tag chip through enumerating the contrast method, including alien higgs-4, nxp g2xm and impinj monza5. And the paper explains the chip impedance, memory allocation in detail. The conclusion is that the performance exist difference between each chip. Understanding the performance of the chip is helpful to design a suitable antenna. To provide reference for uhfrfid label antenna design.


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