A Novel Dielectric Resonator Antenna With Applications in Wide-Angle Beam-Scanning Phased Array
Pramod Kumar Gupta
Department of ECE, PDPM Indian Institute of Information Technology Design and Manufacturing, Jabalpur, Madhya Pradesh, India
Search for more papers by this authorGarima Tiwari
Department of ECE, PDPM Indian Institute of Information Technology Design and Manufacturing, Jabalpur, Madhya Pradesh, India
Search for more papers by this authorTrivesh Kumar
Department of ECE, PDPM Indian Institute of Information Technology Design and Manufacturing, Jabalpur, Madhya Pradesh, India
Search for more papers by this authorCorresponding Author
Biswajeet Mukherjee
Department of Electronic Science, University of Delhi, Delhi, India
Correspondence: Biswajeet Mukherjee ([email protected])
Search for more papers by this authorPramod Kumar Gupta
Department of ECE, PDPM Indian Institute of Information Technology Design and Manufacturing, Jabalpur, Madhya Pradesh, India
Search for more papers by this authorGarima Tiwari
Department of ECE, PDPM Indian Institute of Information Technology Design and Manufacturing, Jabalpur, Madhya Pradesh, India
Search for more papers by this authorTrivesh Kumar
Department of ECE, PDPM Indian Institute of Information Technology Design and Manufacturing, Jabalpur, Madhya Pradesh, India
Search for more papers by this authorCorresponding Author
Biswajeet Mukherjee
Department of Electronic Science, University of Delhi, Delhi, India
Correspondence: Biswajeet Mukherjee ([email protected])
Search for more papers by this authorABSTRACT
A novel Dielectric Resonator Antenna (DRA) with a compact design and a wide half-power beamwidth (HPBW) is presented in this paper. A conformal phased array DRA with a rectangular aperture-coupled feed is used to excite the TE13δ mode. To enhance directive gain, a 1×4 conformal DRA array configuration is implemented, achieving a 5-dBi improvement over a single element. The conformal array is designed for mounting on a curved surface with a 70 mm radius and supports wide-angle beam scanning from −28° to +28°, with a gain fluctuation of less than 2.5 dBi. The proposed array achieves an impedance bandwidth of 52.7%, covering the frequency range from 5.3 to 9.1 GHz. A peak gain of 13 dBi at 7.2 GHz, along with inter-element isolation better than −25 dB, is obtained. Additionally, it offers more than 90% radiation efficiency across the operational band while maintaining a low-profile structure with a height of 0.1λ₀.
Open Research
Data Availability Statement
Data sharing not applicable to this article as no datasets were generated or analyzed during the current study.
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