Dual Band Notch, Compact, Low profile, Hybrid Ultra Wideband RDRA
Taruna Sharma, Parikshit Vasisht, Munish Vashishath, R. S. Yaduvanshi5

1Taruna Sharma*, PhD Scholar in Department of Electronics & Communication at J. C. Bose University of Science and Technology. YMCA, Faridabad, India.
2Dr. Parikshit Vasisht, Assistant Professor in Pesjay Stya University, Gurgaon (Haryana), India.
3Dr. Murnish Yashnath Department of Electronics and Communication, Bose University of Science and Technology, YMCA Fandabad, India
4R.S. Yaduvanshi, Institute of Advanced Communication Technologies and Research (AIACTR). Govt Dethi India
Manuscript received on September 10, 2020. | Revised Manuscript received on September 20, 2020. | Manuscript published on October 30, 2020. | PP: 166-169 | Volume-10 Issue-1, October 2020. | Retrieval Number: 100.1/ijeat.A17651010120 | DOI: 10.35940/ijeat.A1765.1010120
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: 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. 
Keywords: Asymmetric Ring Rectangular Dielectric Resonator Antenna (ARRDRA), Microstrip Patch Antenna (MPA), Ultra Wideband, Multimode Resonance, Microstrip feed.