Author:
Dhanush R,Kumar Kunde Santhosh,Madhan M Ganesh
Abstract
Abstract
In this paper, we report a liquid-based tunable Cylindrical Dielectric Resonator Antenna (CDRA), whose resonance is varied by loading the cavity installed in the CDRA with different volumes of liquid. The tunability of the CDRA is investigated by loading the cavity with two different types of liquids, one with lower permittivity (i.e.) oil and the other with higher permittivity (i.e.) water. CDRA loaded with oil is found to be tunable over a small frequency range of 32MHz (5.76GHz to 5.728GHz), whereas the change in water volume in the cavity provides a wide tuning range of 452MHz (5.76GHz to 5.308GHz). Further, the antenna gain is found to be almost constant, around 5.1 dB, for oil-based CDRA. In a water-filled cavity, the gain is observed to reduce by 1dB as the volume is increased from 0 to 100%.
Subject
Computer Science Applications,History,Education
Cited by
2 articles.
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1. Cylindrical DRA-Based Antenna Engraved with Meandered Slot for UWB Applications;2024 International Conference on Distributed Computing and Optimization Techniques (ICDCOT);2024-03-15
2. Performance Analysis of Cylindrical Dielectric Resonator Antenna for Ultra-Wideband and Sub-6 GHz Wireless Communication;2023 26th International Conference on Computer and Information Technology (ICCIT);2023-12-13