scholarly journals SIZE REDUCTION OF RECTANGULAR DIELECTRIC RESONATOR ANTENNA WITH SYMMETRIC RADIATION PATTERNS AND LOW CROSS POLARIZATION

2011 ◽  
Vol 21 ◽  
pp. 159-167 ◽  
Author(s):  
Xiao-Ming Wang ◽  
Zi-Bin Weng ◽  
Zheng Zhang ◽  
Yong-Chang Jiao ◽  
Yang Zhu ◽  
...  
Keyword(s):  
Dielectric Resonator ◽  
Size Reduction ◽  
Cross Polarization ◽  
Dielectric Resonator Antenna ◽  
Radiation Patterns ◽  
Rectangular Dielectric Resonator Antenna

scholarly journals Rectangular Dielectric Resonator Antenna with Single Band Rejection Characteristics

2019 ◽  
Vol 1 ◽  
pp. 76-82
Author(s):  
Mohamed Debab ◽  
Zoubir Mahdjoub
Keyword(s):  
Reflection Coefficient ◽  
High Frequency ◽  
Dielectric Resonator ◽  
Coaxial Line ◽  
Impedance Bandwidth ◽  
Dielectric Resonator Antenna ◽  
Radiation Patterns ◽  
Notched Band ◽  
Quarter Wavelength ◽  
Rectangular Dielectric Resonator Antenna

In this paper, a rectangular dielectric resonator antenna (DRA) suitable for wideband applications is presented and a band notch of WLAN (5.15–5.75) GHz is proposed. The DRA is mainly composed of a 20 × 20 mm rectangular dielectric resonator, coated with metal on the top surface, and a circular monopole excitation patch with an air gap insert. A coaxial line feed is used to excite the circular, planar monopole. An open-ended quarter wavelength C-shaped slot is embedded in the circular patch to create the notched band. The simulated results demonstrate that the proposed design produces an impedance bandwidth of more than 80%, ranging from 3.10 to 7.25 GHz for a reflection coefficient of less than −10 dB and with a band rejection at 5.50 GHz. Band notch characteristics, VSWR, and radiation patterns are studied using the HFSS high-frequency simulator and CST Studio software.

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