scholarly journals Cylindrical Dielectric Resonator Antenna Offering Low Cross-Polarization for Point-to-Point Communication Systems

2021 ◽  
Vol 30 (1) ◽  
pp. 65-72
Author(s):  
P. S. Reddy ◽  
R. Mondal ◽  
P. P. Sarkar
Keyword(s):  
Dielectric Resonator ◽  
Communication Systems ◽  
Cross Polarization ◽  
Dielectric Resonator Antenna ◽  
Point To Point

scholarly journals Spherical Dielectric Resonator Antenna for 5G Application

2021 ◽  
Author(s):  
Ashok kumar ◽  
Rajveer Singh Yaduvanshi
Keyword(s):  
Wireless Networks ◽  
Wireless Communication ◽  
Theoretical Analysis ◽  
Dielectric Resonator ◽  
Communication Systems ◽  
Return Loss ◽  
Wireless Communication Systems ◽  
Dielectric Resonator Antenna ◽  
Good Match ◽  
Good For

Abstract In this article Spherical DRA has been formulated , simulated and proto type developed. The detailed theoretical analysis along with simulations and measured results at 5.8 GHz have been presented in this article. The SDRA at 5.8 GHz covering 5G frewuenci band. The proposed design antenna provides the gain of 7.3 dB and return loss -25 dB. The measured results are in good match with simulated result. The proposed SDRA are good for 5G wireless networks, as well as other sub-6 band in wireless communication systems.

Gain and Bandwidth Enhancement of Tetracuspid-shaped DRA Mounted with Conical Horn

Frequenz ◽  
2018 ◽  
Vol 72 (7-8) ◽  
pp. 315-323 ◽  
Author(s):  
Pramod Kumar ◽  
Santanu Dwari ◽  
Utkarsh ◽  
N. K. Agrawal ◽  
Jitendra Kumar
Keyword(s):  
Dielectric Resonator ◽  
Communication Systems ◽  
Ceramic Composite ◽  
Wireless Communication Systems ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Bandwidth Enhancement ◽  
The Cost ◽  
Conical Horn ◽  
Peak Gain

Abstract A novel Tetracuspid-shaped dielectric resonator antenna (DRA) mounted with conical horn is presented and investigated for broadband applications. The dielectric used for investigation is a ceramic composite material having a dielectric constant ( $\varepsilon_r$) of 12.9. Tetracuspid-shaped resonator geometry achieves a broadband impedance bandwidth of 70.9 % for |S11|<‒10 dB, ranging from 2 GHz to 4.2 GHz. Tetracuspid-shaped reduces the DRA volume by 78 % (without horn) as compared to conventional cylindrical DRA; with reduced volume of 14.4 cm3 which diminishes the cost and weight. Gain of proposed antenna is further enhanced up to 9.5 dBi in operating band by mounting a conical horn. Achieved average peak gain is ~7 dBi. Proposed antenna covers bands of different wireless communication systems like Wi-Max and WLAN (2.4 GHz, 2.5 GHz, 3.3 GHz and 3.5 GHz). The simulated results are validated by experimentally measured outcomes and these are well in agreement.

scholarly journals A Compact Wide-Band Hybrid Dielectric Resonator Antenna with Enhanced Gain and Low Cross-Polarization

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Feibiao Dong ◽  
Limei Xu ◽  
Wenbin Lin ◽  
Tianhong Zhang
Keyword(s):  
Frequency Band ◽  
Dielectric Resonator ◽  
Return Loss ◽  
Wide Band ◽  
High Gain ◽  
Hybrid Design ◽  
Cross Polarization ◽  
Dielectric Resonator Antenna ◽  
Small Base ◽  
Air Layers

By loading two printed patches to the dielectric resonator antenna (DRA), a compact wide-band hybrid dielectric resonator antenna with enhanced gain and low cross-polarization is presented. The proposed antenna utilizes a combination of a rectangular dielectric resonator and two printed patches. Due to the hybrid design, multiple resonances were obtained. By adding two air layers between the dielectric resonator and the printed patches, the bandwidth has been significantly improved. Compared to the traditional hybrid dielectric resonator antenna, the proposed antenna can achieve wide bandwidth, high gain, low cross-polarization, and even small size simultaneously. The prototype of the proposed antenna has been fabricated and tested. The measured −10 dB return loss bandwidth is 25.6% (1.7–2.2 GHz). The measured antenna gains are about 6.3 and 8.2 dBi in the operating frequency band. Low cross-polarization levels of less than −28.5 dB and −43 dB in the E-plane and H-plane are achieved. Moreover, the overall dimensions of the antenna are only 67 × 67 × 34 (mm3). The proposed antenna is especially attractive for small base antenna applications.

scholarly journals Ultra-Wideband Dielectric Resonator Antenna Design Based on Multilayer Form

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Fan Wang ◽  
Chuanfang Zhang ◽  
Houjun Sun ◽  
Yu Xiao
Keyword(s):  
Dielectric Resonator ◽  
Linear Array ◽  
Ultra Wideband ◽  
Operating Frequency ◽  
Cross Polarization ◽  
Dielectric Resonator Antenna ◽  
Frequency Range ◽  
Scanning Angle ◽  
Operating Frequency Range ◽  
Relative Bandwidth

In this paper, an ultra-wideband dielectric resonator antenna (DRA) is investigated. It basically covers the bandwidth from 6 GHz to 16 GHz and achieves a relative bandwidth of 90.9%. It is found that a wide bandwidth can be reached with a small DRA by adopting multilayer form. Thus, the dimension of the designed DRA element which is composed of nine-element phased-scanning linear array is as small as 6.9mm x 8.2mm x 11 mm. While the maximum stable zenith gain is 6.2dB, the lobe width is 3 dB. The operating frequency range of the antenna array is from 5.42GHz to 16.5GHz, achieving a 101.1% relative bandwidth. A large scanning angle of ±60° is realized within the operating frequency band, with good scanning pattern and cross polarization. To verify the design and simulation, a 1 × 9 DRA array is fabricated, and measurements are carried out.

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