Wide-band truncated tetrahedron dielectric resonator antenna excited by a coaxial probe

2003 ◽  
Vol 51 (10) ◽  
pp. 2913-2917 ◽  
Author(s):  
A.A. Kishk
Keyword(s):  
Dielectric Resonator ◽  
Wide Band ◽  
Dielectric Resonator Antenna ◽  
Coaxial Probe

scholarly journals Dual Band Notch, Compact, Low profile, Hybrid Ultra Wideband RDRA

2020 ◽  
Vol 10 (1) ◽  
pp. 166-169
Keyword(s):  
Radiation Pattern ◽  
Dielectric Resonator ◽  
Surface Current ◽  
Wide Band ◽  
Ultra Wideband ◽  
Dual Band ◽  
Ultra Wide Band ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Ground Structure

This paper presents a novel, compact Ultra Wide Band , Asymmetric Ring Rectangular Dielectric Resonator Antenna (ARRDRA), which is a unique combination of Thin Dielectric Resonator (DR), Fork shape patch and defective ground structure. The base of the proposed antenna is its Hybrid structure, which generates fundamental TM, TE and higher order modes that yields an impedance bandwidth of 119%. Proposed antenna provides a frequency range from 4.2 to 16.6 GHz with a stable radiation pattern and low cross polarization levels. Peak gain of 5.5 dB and average efficiency of 90% is obtained by the design. Antenna is elongated on a FR4 substrate of dimension 20 x 24x 2.168 mm3 and is particularly suitable for C band INSAT, Radio Altimeter, WLAN, Wi-Fi for high frequencies. Ease in fabrication due to simplicity, compactness, stable radiation pattern throughout the entire bandwidth are the key features of the presented design. Inclusion of Defective ground structure and asymmetric ring not only increases the bandwidth but also stabilize the gain and efficiency due to less surface current. Presented design launch an Ultra Wide Band antenna with sufficient band rejection at 4.48-5.34 and 5.64-8.33 GHz with stable radiation pattern and high gain.

Wide Band Circularly Polarized Dielectric Resonator Antenna With Stair-Shaped Slot Excitation

2017 ◽  
Vol 65 (3) ◽  
pp. 1380-1383 ◽  
Author(s):  
Gaurav Varshney ◽  
V. S. Pandey ◽  
R. S. Yaduvanshi ◽  
Lalit Kumar
Keyword(s):  
Dielectric Resonator ◽  
Wide Band ◽  
Dielectric Resonator Antenna ◽  
Circularly Polarized
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