Dielectric resonator antenna phased array for fixed RFID reader in near field region

2012 ◽  
Author(s):  
S. H. Zainud-Deen ◽  
Hend A. Malhat ◽  
K. H. Awadalla
Keyword(s):  
Dielectric Resonator ◽  
Phased Array ◽  
Near Field ◽  
Field Region ◽  
Dielectric Resonator Antenna ◽  
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

B10. Multilayer dielectric resonator antenna transmitarray for near-field and far-field fixed RFID reader

2012 ◽  
Author(s):  
Saber. H. Zainud-Deen ◽  
Shaymaa. M. Gaber ◽  
Hend A. Malhat ◽  
Kamal. H. Awadalla
Keyword(s):  
Dielectric Resonator ◽  
Near Field ◽  
Far Field ◽  
Dielectric Resonator Antenna ◽  
Rfid Reader ◽  
Multilayer Dielectric

scholarly journals Near-Field Focusing Dielectric Resonator Antenna Array for Fixed RFID Readers

10.5772/54902 ◽  
2012 ◽  
Vol 4 ◽  
pp. 23
Author(s):  
Saber H. Zainud-Deen ◽  
Hend A. Malhat ◽  
Kamal H. Awadalla
Keyword(s):  
Antenna Array ◽  
Dielectric Resonator ◽  
Near Field ◽  
Dielectric Resonator Antenna ◽  
Rfid Readers

scholarly journals Investigation on Harmonic Tuning for Active Ku-Band Rectangular Dielectric Resonator Antennas

2008 ◽  
Vol 2008 ◽  
pp. 1-6 ◽  
Author(s):  
Anda Guraliuc ◽  
Giuliano Manara ◽  
Paolo Nepa ◽  
Giuseppe Pelosi ◽  
Stefano Selleri
Keyword(s):  
Dielectric Resonator ◽  
Shape Factor ◽  
Phased Array ◽  
Fine Tuning ◽  
Dielectric Resonator Antenna ◽  
Dielectric Resonator Antennas ◽  
Power Added Efficiency ◽  
Radiating Element ◽  
Integrated Antenna ◽  
Ku Band

A slot-coupled rectangular dielectric resonator antenna (DRA) operating in the 14–14.5 GHz frequency band is investigated as a possible radiating element for an active integrated antenna of a transmitting phased array. The effectiveness of the resonator shape factor on achieving harmonic tuning is addressed. Simulation results show that the DRA shape factor can be used to provide a fine tuning of the DRA input impedance both at the fundamental frequency and its first harmonics, so synthesizing the proper load for the optimization of the microwave amplifier power-added efficiency (PAE).

Dielectric resonator antenna phased array with liquid crystal based phase shifters

2014 ◽  
Author(s):  
Arshad Mehmood ◽  
Onur Hamza Karabey ◽  
Muhammed Ayluctarhan ◽  
Yuliang Zheng ◽  
Hubertus Braun ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Dielectric Resonator ◽  
Phased Array ◽  
Phase Shifters ◽  
Dielectric Resonator Antenna

scholarly journals Circular Polarized Dielectric Resonator Antenna for Portable RFID Reader Using a Single Feed

10.5772/54896 ◽  
2012 ◽  
Vol 4 ◽  
pp. 19 ◽  
Author(s):  
Hend A. Malhat ◽  
Saber H. Zainud-Deen ◽  
Kamal H. Awadalla
Keyword(s):  
Dielectric Resonator ◽  
Dielectric Resonator Antenna ◽  
Rfid Reader

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 Low-Cost Phased Array of Dielectric Resonator Antenna Using Parasitic Elements and Capacitor Loading

2013 ◽  
Vol 61 (4) ◽  
pp. 2318-2321 ◽  
Author(s):  
Mohammad Ranjbar Nikkhah ◽  
J. Rashed-Mohassel ◽  
Ahmed A. Kishk
Keyword(s):  
Dielectric Resonator ◽  
Phased Array ◽  
Low Cost ◽  
Dielectric Resonator Antenna
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