Low Profile Circularly Polarized Antennas for Modern Wireless Applications: A Review | ||||
| Journal of Engineering Science and Military Technologies | ||||
| Articles in Press, Accepted Manuscript, Available Online from 04 July 2025 | ||||
| Document Type: Review articles | ||||
| DOI: 10.21608/ejmtc.2025.345556.1294 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Basim Fathalla Sadek  1; Mahmoud A Abdalla 2; Ahmed Abdelraheem3
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| 1Military Technical college | ||||
| 2Military Technical College | ||||
| 3Purdue University, USA | ||||
| Abstract | ||||
| Low-profile, circularly polarized antennas are gaining popularity due to the increasing demand for more compact and efficient wireless communication systems. . As wireless technology advances, the need for smaller, more efficient antennas continues to grow. Circularly polarized antennas offer significant advantages, including reduced polarization mismatch, minimized multipath fading, and enhanced signal reliability, benefits that are particularly valuable in densely populated wireless environments. This is a comprehensive review that introduces different techniques for realizing low profile, smaller and efficicent circularly polarized antennas.Various design techniques, such as the use of metamaterials, dielectric resonator antennas, short pins loading, and employing compact feeding techniques such as proximity-coupled and aperaturecoupled feeds, are explored to achieve low-profile circular polarization radiation while also reducing the antenna size.The tradeoff between antenna size reduction and antenna performance is a fundamental challenge in antenna design, particularly for modern wireless applications where both compactness and efficiency are crucial. The review also introduces several developed antenna designs for realizing wideband CP radiation performance which needed for diverse modern communication systems. | ||||
| Keywords | ||||
| Circularly polarized (CP); coplanar waveguide (CPW); Dielectric Resonators Antenna (DRA) Low-profile; Internet of Things (IoT); Radio Frequency Identification (RFID) | ||||
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