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A unique hook-shaped conformal metal strip has been used to excite a cylindrical multilayer dielectric resonator antenna (DRA). By using the proposed unique feed and multi dielectric layers, a broadband circular polarization have been achieved over a bandwidth of ∼9.8% in conjunction with an impedance-matching bandwidth of ∼12.8% at same frequency range. The DRA has been successfully designed and...
This study presents design and analysis of a wideband circularly polarized (CP) cylindrical hollow shaped dielectric resonator antenna (DRA) which has been excited with a roman three (m) shaped feed. The proposed feed has been made-up of five metallic strips, which have been optimized to generate a wideband circular polarization. The proposed antenna offers circular polarization over a bandwidth of...
Wireless power transfer (WPT) is a device that transmits electrical energy from a power unit to an electrical load through the air wirelessly or without the interconnection of any conductors. The designs of current WPT are quite large and inappropriate for many applications, especially for electronic devices. The small scale (mid-range WPT) with 1 meter distance was investigated to develop a wirelessly...
A cylindrical dielectric resonator antenna (DRA) that is excited using a conformal rectangular open half-loop feed has been studied theoretically and experimentally. The proposed excitation has provided a measured circular polarization over a bandwidth of ∼4.14% in conjunction with an impedance-matching bandwidth of ∼20.55% over the same frequency range. The structure has been rigorously simulated...
High frequency radio links tend to suffer losses due to hydrometeors. Rain is among the largest contributor to these types of losses and is known to cause most outages on microwave links. Rainfall rate is one of the crucial parameters for radio engineers to calculate and predict attenuation on radio links due to rain. This paper studies the potential of rainfall rate acquired from EUMETSAT's Multi-Sensor...
A cylindrical dielectric resonator antenna (DRA) that is excited using a conformal square spiral strip has been studied theoretically and experimentally. The proposed excitation has provided a measured circular polarization over a bandwidth of ~4.2% in conjunction with an impedance-matching bandwidth of ~14.3% at the same frequency range. The structure has been rigorously modeled using a method of...
A rectangular dielectric resonator antenna (DRA) that is excited using an outer-fed square spiral strip has been studied theoretically and experimentally. Utilizing such excitation has provided a circular polarization over a broad bandwidth of ~14% in conjunction with an impedance-matching bandwidth of ~11%. The structure has been rigorously modeled using a method of moments (MoM) model. A good agreement...
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