Linearly tapered meander line cross dipole circularly polarized antenna for UHF RFID tag applications

2018 ◽  
Vol 29 (5) ◽  
pp. e21563 ◽  
Author(s):  
Sudhir Bhaskar ◽  
Amit Kumar Singh
Keyword(s):  
Uhf Rfid ◽  
Rfid Tag ◽  
Circularly Polarized ◽  
Line Cross ◽  
Meander Line

Design of a broadband circularly polarized UHF RFID tag antenna for metallic objects

2015 ◽  
Author(s):  
Xin Qian ◽  
Guang-qiu Zhang ◽  
Xue Lei ◽  
Lei Hou ◽  
Sheng-hua Ma
Keyword(s):  
Uhf Rfid ◽  
Rfid Tag ◽  
Circularly Polarized

Design and Analysis of UHF RFID Tag Antenna on the Surface of Cylinder

2014 ◽  
Vol 541-542 ◽  
pp. 458-461
Author(s):  
Pu Yu Duan ◽  
Dong Wang
Keyword(s):  
Plane Surface ◽  
Impedance Matching ◽  
Dipole Antenna ◽  
Cylinder Surface ◽  
Uhf Rfid ◽  
Logistics Industry ◽  
Rfid Tag ◽  
The Impact ◽  
Meander Line ◽  
Read Range

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.

A Circularly Polarized UHF RFID Tag Antenna Design

2021 ◽  
Author(s):  
Chow-Yen-Desmond Sim ◽  
Tzu-Wei Huang ◽  
Yu-Chieh Hsuan ◽  
Shun-Yu Tsai ◽  
Chuan-Kuei Weng
Keyword(s):  
Antenna Design ◽  
Uhf Rfid ◽  
Rfid Tag ◽  
Circularly Polarized

Meander-line antenna with arc structure for UHF- RFID Tag

2011 ◽  
Author(s):  
Pitchanun Wongsiritorn ◽  
Tajchai Pumpoung ◽  
Chuwong Phongcharoenpanich ◽  
Kanawat Nuangwongsa ◽  
Sompol Kosulvit
Keyword(s):  
Uhf Rfid ◽  
Rfid Tag ◽  
Meander Line

Compact broadband circularly polarized UHF RFID tag antenna for metallic mounting

2020 ◽  
Vol 34 (8) ◽  
pp. 989-1001
Author(s):  
Hui Liu ◽  
Cheng Liu ◽  
Qingchong Liu ◽  
Yuefeng Lu ◽  
Sailing He
Keyword(s):  
Uhf Rfid ◽  
Rfid Tag ◽  
Circularly Polarized

scholarly journals Near-Field HF-RFID and CMA-Based Circularly Polarized Far-Field UHF-RFID Integrated Tag Antenna

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Arnon Sakonkanapong ◽  
Chuwong Phongcharoenpanich
Keyword(s):  
Near Field ◽  
Axial Ratio ◽  
Dual Band ◽  
Mode Analysis ◽  
Impedance Bandwidth ◽  
Far Field ◽  
Uhf Rfid ◽  
Characteristic Mode ◽  
Rfid Tag ◽  
Circularly Polarized

This research proposes an integrated high-frequency (HF) and ultrahigh-frequency (UHF) passive radio frequency identification (RFID) tag antenna for near-field (13.56 MHz) and far-field (920–925 MHz) communication. This tag antenna is advantageous for the applications with lossy material in the near-field communication and mitigates polarization loss in the far-field communications. The HF-RFID tag antenna is of square spiral structure, and the circularly polarized UHF-RFID structure consists of a square loop radiator with cascading loop feeding and shorted stub. The structure of HF-RFID tag antenna situated inside the circularly polarized UHF-RFID tag can avoid the significant effect of the near-field magnetic coupling from the square loop. The UHF-RFID tag antenna is realized by using characteristic mode analysis for wideband circular polarization. The HF-RFID structure is conjugate-matched with NXP NT3H2111 chip, and the UHF-RFID structure is conjugate-matched with NXP G2X chip. Simulations were carried out, and an antenna prototype was fabricated. The experimental results reveal that the radiation pattern of UHF-RFID tag antenna is bidirectional with a gain of 0.31 dBic. The impedance bandwidth covers the frequency range of 903–944 MHz, and the axial ratio in boresight direction at 922.5 MHz is 1.67 dB, with the axial ratio bandwidth over 863–938 MHz. The maximum near-field and far-field reading ranges are 4.9 cm and 8.7 m. The proposed integrated dual-band passive tag antenna is operationally ideal for HF-RFID and UHF-RFID applications.

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