Low profile UHF RFID antenna design with EBG structures

Abstract A novel design of a coplanar waveguide (CPW) feed antenna array with circular polarization (CP) and a high front-to-back ratio is described. The proposed CP array is achieved by using a compact CPW–slotline transition network etched in the ground plane. The measured results show that this kind of feeding method can improve the impedance bandwidth, as well as the axial ratio bandwidth of the CP antenna array and provide adequate gain. The proposed array can achieve a 6.08% impedance bandwidth and a 4.10% CP bandwidth. Details of the antenna design and experimental results are presented and discussed.

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Wearable UHF RFID Tag Antenna Design using Hilbert Fractal Structure

2019 UK/ China Emerging Technologies (UCET) ◽

10.1109/ucet.2019.8881857 ◽

2019 ◽

Cited By ~ 1

Author(s):

Abubakar Sharif ◽

Jun Ouyang ◽

Hassan Tariq Chattha ◽

Muhammad Ali Imran ◽

Qammer Hussain Abbasi

Keyword(s):

Fractal Structure ◽

Antenna Design ◽

Uhf Rfid ◽

Rfid Tag

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Contribution on UHF RFID antenna design and tag fabrication

2011 IEEE International Conference on RFID-Technologies and Applications ◽

10.1109/rfid-ta.2011.6068679 ◽

2011 ◽

Cited By ~ 1

Author(s):

Thuat Nguyen-Tran ◽

Mau Chien Dang ◽

Nhan Ai Tran ◽

Anh Hoang ◽

Dat Son Nguyen ◽

...

Keyword(s):

Antenna Design ◽

Uhf Rfid

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Miniaturized Broadband-Multiband Planar Monopole Antenna in Autonomous Vehicles Communication System Device

Electronics ◽

10.3390/electronics10212715 ◽

2021 ◽

Vol 10 (21) ◽

pp. 2715

Author(s):

Ming-An Chung ◽

Chih-Wei Yang

Keyword(s):

Communication System ◽

Autonomous Vehicles ◽

Low Cost ◽

Antenna Design ◽

Dual Band ◽

Impedance Change ◽

Antenna Structure ◽

Low Profile ◽

Performance Results ◽

Wireless Standards

The article mainly presents that a simple antenna structure with only two branches can provide the characteristics of dual-band and wide bandwidths. The recommended antenna design is composed of a clockwise spiral shape, and the design has a gradual impedance change. Thus, this antenna is ideal for applications also recommended in these wireless standards, including 5G, B5G, 4G, V2X, ISM band of WLAN, Bluetooth, WiFI 6 band, WiMAX, and Sirius/XM Radio for in-vehicle infotainment systems. The proposed antenna with a dimension of 10 × 5 mm is simple and easy to make and has a lot of copy production. The operating frequency is covered with a dual-band from 2000 to 2742 MHz and from 4062 to beyond 8000 MHz and, it is also demonstrated that the measured performance results of return loss, radiation, and gain are in good agreement with simulations. The radiation efficiency can reach 91% and 93% at the lower and higher bands. Moreover, the antenna gain can achieve 2.7 and 6.75 dBi at the lower and higher bands, respectively. This antenna design has a low profile, low cost, and small size features that may be implemented in autonomous vehicles and mobile IoT communication system devices.

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