Resonance breakdown of dielectric resonator antennas on ground plane at visible frequencies

2015 ◽  
Author(s):  
Chengjun Zou ◽  
Withawat Withayachumnankul ◽  
Longfang Zou ◽  
Christophe Fumeaux
Keyword(s):  
Dielectric Resonator ◽  
Ground Plane ◽  
Dielectric Resonator Antennas

Conformal Bent Dielectric Resonator Antennas With Curving Ground Plane

2019 ◽  
Vol 67 (3) ◽  
pp. 1931-1936 ◽  
Author(s):  
Ma Boyuan ◽  
J. Pan ◽  
Enhao Wang ◽  
Yuyue Luo
Keyword(s):  
Dielectric Resonator ◽  
Ground Plane ◽  
Dielectric Resonator Antennas

scholarly journals A Novel Ultrawideband Gear-Shaped Dielectric Ring Resonator Antenna

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Mehdi Ghorbani ◽  
Habib Ghorbaninejad
Keyword(s):  
Dielectric Resonator ◽  
Ring Resonator ◽  
Ground Plane ◽  
Array Antenna ◽  
Impedance Bandwidth ◽  
Circular Array ◽  
Dielectric Resonator Antennas ◽  
Resonator Structure ◽  
Quarter Wave ◽  
Design Characteristics

In this study, a novel ultrawideband (UWB) dielectric ring resonator (DRR) antenna has been proposed. DRR antennas include a single monopole antenna in the center of a ground plane and a dielectric with a symmetric structure around the monopole. This structure will lead to ultrawide band antenna. However, it is still possible to enhance the antenna bandwidth. In this study, we combine the DRR structure with an array antenna. The proposed antenna includes a circular array of four triangle resonators, which is rotated around the center of the triangle base to form a gear-shaped ring resonator antenna. In this design, characteristics of all these antennas are combined to enhance the antenna bandwidth including triangular dielectric resonator, circular array antenna, dielectric ring resonator structure, and a quarter-wave electric monopole. Triangular dielectric resonator antennas are wideband and in small size. Ring resonator antennas are inherently ultrawideband. Quarter-wave electric monopole and circular array structure can also enhance antenna bandwidth. This novel shape of the DRR antenna possesses the wider impedance bandwidth compared to similar works. Impedance bandwidth is 150% (5.2–36.1 GHz), and the bandwidth ratio is 1 : 6.9, which is much greater than earlier reports.

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