What is it about?
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 (_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 14.4cm3 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 were validated by experimentally measured outcomes and these are well in agreement.
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Why is it important?
Gain and Bandwidth Enhancement Technique for Broadband Applications
Perspectives
This DRA suitable for practical use in the wireless communication systems such as WLAN, Wi-Max (2.4 GHz, 2.5 GHz, 3.3 GHz, and 3.5 GHz) and other applications of S-band.
Dr Jitendra Kumar
Institute for Plasma Research
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This page is a summary of: Gain and Bandwidth Enhancement of Tetracuspid-shaped DRA Mounted with Conical Horn, Frequenz, June 2018, De Gruyter,
DOI: 10.1515/freq-2017-0140.
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