Low Profile Dielectric Resonator Antenna Arrays for Reflector Feeds

1999 ◽  
Author(s):  
Aldo Petosa ◽  
Apisak Ittipiboon ◽  
Michel Cuhaci
Keyword(s):  
Antenna Arrays ◽  
Dielectric Resonator ◽  
Dielectric Resonator Antenna ◽  
Low Profile

Low-Profile Artificial Grid Dielectric Resonator Antenna Arrays for mm-Wave Applications

2019 ◽  
Vol 67 (7) ◽  
pp. 4406-4417 ◽  
Author(s):  
Waqas Mazhar ◽  
David M. Klymyshyn ◽  
Garth Wells ◽  
Aqeel A. Qureshi ◽  
Michael Jacobs ◽  
...  
Keyword(s):  
Antenna Arrays ◽  
Dielectric Resonator ◽  
Dielectric Resonator Antenna ◽  
Low Profile

Low-profile U-shaped DRA for ultra-wideband applications

2016 ◽  
Vol 9 (3) ◽  
pp. 621-627 ◽  
Author(s):  
Idris Messaoudene ◽  
Tayeb A. Denidni ◽  
Abdelmadjid Benghalia
Keyword(s):  
Dielectric Resonator ◽  
Ground Plane ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Radiation Patterns ◽  
Wide Bandwidth ◽  
Operating Band ◽  
Low Profile ◽  
Measurement Results

In this paper, a microstrip-fed U-shaped dielectric resonator antenna (DRA) is simulated, designed, and fabricated. This antenna, in its simple configuration, operates from 5.45 to 10.8 GHz. To enhance its impedance bandwidth, the ground plane is first modified, which leads to an extended bandwidth from 4 to 10.8 GHz. Then by inserting a rectangular metallic patch inside the U-shaped DRA, the bandwidth is increased more to achieve an operating band from 2.65 to 10.9 GHz. To validate these results, an experimental antenna prototype is fabricated and measured. The obtained measurement results show that the proposed antenna can provide an ultra-wide bandwidth and a symmetric bidirectional radiation patterns. With these features, the proposed antenna is suitable for ultra-wideband applications.

60 GHz Substrate Integrated Waveguide-Fed Monolithic Grid Dielectric Resonator Antenna Arrays

2019 ◽  
Vol 18 (6) ◽  
pp. 1109-1113 ◽  
Author(s):  
Waqas Mazhar ◽  
David Klymyshyn ◽  
Garth Wells ◽  
Aqeel Qureshi ◽  
Michael Jacobs
Keyword(s):  
Antenna Arrays ◽  
Dielectric Resonator ◽  
Substrate Integrated Waveguide ◽  
60 Ghz ◽  
Dielectric Resonator Antenna

scholarly journals Circularly Polarized Dielectric Resonator Antenna Arrays with Fractal Cross-Slot-Coupled DRA Elements

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Jia-Hong Lin ◽  
Wen-Hui Shen ◽  
Zhi-Dong Shi ◽  
Shun-Shi Zhong
Keyword(s):  
Antenna Arrays ◽  
Dielectric Resonator ◽  
Design Procedure ◽  
Axial Ratio ◽  
Array Element ◽  
Dielectric Resonator Antenna ◽  
Sidelobe Level ◽  
Circularly Polarized ◽  
Low Sidelobe

In the design of circularly polarized (CP) dielectric resonator antenna (DRA) arrays, the regular-shaped DRAs with simple feeding configurations are mostly used as array elements to make the design procedure more efficient. However, such array element DRA usually achieves only about 6% axial ratio (AR) bandwidth. In this paper, a CP DRA element coupled by a fractal cross-slot which can radiate efficiently and excite the rectangular DRA simultaneously is considered. By adjusting the dimensions of the fractal cross-slot properly, the resonances of the fractal cross-slot and the dielectric resonator can be merged to obtain a wider AR bandwidth. Based on the proposed fractal cross-slot-coupled CP DRA element, two different CP DRA arrays are designed: a wideband CP DRA array and a low-sidelobe-level (SLL) CP DRA array. The designed DRA arrays are fabricated and measured, and structures and performances of the arrays are presented and discussed.

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