Investigations on Wideband Cylindrical Dielectric Resonator Antenna With Directive Radiation Patterns and Low Cross Polarization

2010 ◽  
Vol 58 (5) ◽  
pp. 1779-1783 ◽  
Author(s):  
Abhishek Singh ◽  
Satish K Sharma
Keyword(s):  
Dielectric Resonator ◽  
Cross Polarization ◽  
Dielectric Resonator Antenna ◽  
Radiation Patterns

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.

scholarly journals A Series-Fed Linear Substrate-Integrated Dielectric Resonator Antenna Array for Millimeter-Wave Applications

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Ke Gong ◽  
Xue Hui Hu ◽  
Peng Hu ◽  
Bing Jie Deng ◽  
You Chao Tu
Keyword(s):  
Antenna Array ◽  
Millimeter Wave ◽  
Dielectric Resonator ◽  
Return Loss ◽  
Printed Circuit Board ◽  
Circuit Board ◽  
Dielectric Resonator Antenna ◽  
Radiation Patterns ◽  
Feeding Structure ◽  
Broadside Radiation

A series-fed linear substrate-integrated dielectric resonator antenna array (SIDRAA) is presented for millimeter-wave applications, in which the substrate-integrated dielectric resonator antenna (SIDRA) elements and the feeding structure can be codesigned and fabricated using the same planar process. A prototype 4 × 1 SIDRAA is designed at Ka-band and fabricated with a two-layer printed circuit board (PCB) technology. Four SIDRAs are implemented in the Rogers RT6010 substrate using the perforation technique and fed by a compact substrate-integrated waveguide (SIW) through four longitudinal coupling slots within the Rogers RT5880 substrate. The return loss, radiation patterns, and antenna gain were experimentally studied, and good agreement between the measured and simulated results is observed. The SIDRAA example provides a bandwidth of about 10% around 34.5 GHz for 10 dB return loss and stable broadside radiation patterns with the peak gain of 10.5–11.5 dBi across the band.

scholarly journals A Broadband Differential-Fed Dual-Polarized Hollow Cylindrical Dielectric Resonator Antenna for 5G Communications

Sensors ◽  
2020 ◽  
Vol 20 (22) ◽  
pp. 6448
Author(s):  
Xiaosheng Fang ◽  
Kangping Shi ◽  
Yuxiang Sun
Keyword(s):  
Dielectric Resonator ◽  
Impedance Bandwidth ◽  
Antenna Gain ◽  
Dielectric Resonator Antenna ◽  
Radiation Patterns ◽  
Higher Order Modes ◽  
Dual Polarized ◽  
Broadside Radiation ◽  
K9 Glass ◽  
Better Than

A broadband differential-fed dual-polarized hollow cylindrical dielectric resonator antenna (DRA) is proposed in this article. It makes use of the HEM111, HEM113, and HEM115 modes of the cylindrical hollow DRA. The proposed DRA is simply fed by two pairs of conducting strips and each pair of strips is provided with the out-of-phase signals. After introducing four disconnected air holes into the DRA, a broadband characteristic is achieved, with little effect on the antenna gain of its higher-order modes. To verify this idea, frosted K9-glass is applied to fabricate the hollow cylindrical DRA. The differential S-parameters, radiation patterns, and antenna gain of the DRA are studied. It is found that the proposed differential-fed dual-polarized DRA is able to provide a broad differential impedance bandwidth of ~68% and a high differential-port isolation better than ~46 dB. Moreover, symmetrical broadside radiation patterns are observed across the whole operating band. The proposed DRA covers the frequency bands including the 5G-n77 (3.4–4.2 GHz), 5G-n79 (4.4–5.0 GHz), WLAN-5.2 GHz (5.15–5.35 GHz), and WLAN-5.8 GHz (5.725–5.825 GHz), which can be used for 5G communications.

Switch beam dielectric resonator antenna array with four reconfigurable radiation patterns

2015 ◽  
Vol 58 (1) ◽  
pp. 86-92 ◽  
Author(s):  
Muhammad Kamran Saleem ◽  
Majeed A. S. Alkanhal ◽  
Abdel Fattah Sheta
Keyword(s):  
Antenna Array ◽  
Dielectric Resonator ◽  
Dielectric Resonator Antenna ◽  
Radiation Patterns
Sign in / Sign up

Export Citation Format

Share Document