High Gain Folded Loop-based Multilayer Antenna at 2.4 GHz Band for Far-Field RFID Reader

2020 ◽  
Author(s):  
Nguyen Thanh Huong ◽  
Bui Do Hanh Ngan ◽  
Vuong Tan Phu
Keyword(s):  
High Gain ◽  
Far Field ◽  
Rfid Reader

MULTILAYER DIELECTRIC RESONATOR ANTENNA TRANSMITARRAY FOR NEAR-FIELD AND FAR-FIELD FIXED RFID READER

2012 ◽  
Vol 27 ◽  
pp. 129-142 ◽  
Author(s):  
Saber Helmy Zainud-Deen ◽  
Shaymaa M. Gaber ◽  
Hend Abd El-Azem Malhat ◽  
Kamal Hassan Awadalla
Keyword(s):  
Dielectric Resonator ◽  
Near Field ◽  
Far Field ◽  
Dielectric Resonator Antenna ◽  
Rfid Reader ◽  
Multilayer Dielectric

Wideband high gain circularly polarized UHF RFID reader antenna

2016 ◽  
Author(s):  
Jian Li ◽  
Yongjun Huang ◽  
Yao Wang ◽  
Qing Zhang ◽  
Guangjun Wen ◽  
...  
Keyword(s):  
High Gain ◽  
Uhf Rfid ◽  
Circularly Polarized ◽  
Rfid Reader ◽  
Reader Antenna

scholarly journals Dielectric Resonator Antenna Mounted on Cylindrical Ground Plane for Handheld RFID Reader at 5.8 GHz

2012 ◽  
Vol 1 (3) ◽  
pp. 71
Author(s):  
H. A. E. Malhat ◽  
S. Zainud-deen ◽  
N. El-Shalaby ◽  
K. Awadalla
Keyword(s):  
Dielectric Resonator ◽  
Ground Plane ◽  
Axial Ratio ◽  
High Gain ◽  
Human Hand ◽  
Dielectric Resonator Antenna ◽  
Device Model ◽  
Rfid Reader ◽  
Reader Antenna ◽  
Finite Integral

Dielectric resonator antenna (DRA) mounted on cylindrical ground plane is investigated for handheld RFID reader applications at 5.8 GHz. The simplicity of the structure makes it practical in terms of cost, space, and ease of fabrication. The radiation characteristics of the antenna in free space and in the presence of a proposed compact reader device model and human hand are calculated. The antenna is circularly polarized and exhibits peak gain of 7.62 dB at 5.8 GHz with high front to back ratio of 15.5 dB. Using the same reader device model, a sequentially feeding 2×2 DRA array mounted on the same cylindrical ground plane is used for RFID reader antenna at 5.8 GHz. The array introduces high gain of 9.36 dB at 5.8 GHz with high front to back ratio of 10.48 dB. The 2×2 DRA array elements exhibit circular polarization over a frequency band of 1.1 GHz. The axial ratio is 1.1 dB at 5.8 GHz. The proposed reader model is simple and has a small size compared with that in the case of planar ground plane. The results are calculated using the finite element method (FEM) and compared with that calculated using the finite integral technique (FIT).

Compact and High-Gain UHF/UWB RFID Reader Antenna

2017 ◽  
Vol 65 (10) ◽  
pp. 5002-5010 ◽  
Author(s):  
Jun Zhang ◽  
Zhongxiang Shen
Keyword(s):  
High Gain ◽  
Rfid Reader ◽  
Reader Antenna

scholarly journals WIDEBAND CIRCULARLY POLARIZED UHF RFID READER ANTENNA WITH HIGH GAIN AND WIDE AXIAL RATIO BEAMWIDTHS

2012 ◽  
Vol 129 ◽  
pp. 365-385 ◽  
Author(s):  
Ping Wang ◽  
Guangjun Wen ◽  
Jian Li ◽  
Yongjun Huang ◽  
Liu Yang ◽  
...  
Keyword(s):  
Axial Ratio ◽  
High Gain ◽  
Uhf Rfid ◽  
Circularly Polarized ◽  
Rfid Reader ◽  
Reader Antenna
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