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

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

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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