Reconfigurability Techniques in Microwave Components: A Review | ||
| Journal of Engineering Science and Military Technologies | ||
| Articles in Press, Accepted Manuscript, Available Online from 05 April 2025 | ||
| Document Type: Review articles | ||
| DOI: 10.21608/ejmtc.2025.339987.1292 | ||
| Authors | ||
| Kareem H El-Gendy* ; Mohamed F Hagag; Mahmoud A Abdalla | ||
| Electronic Engineering Department, Military Technical College, Egypt | ||
| Abstract | ||
| Reconfigurable techniques in microwave components are essential for the flexibility and performance enhancement that current communication systems demand. This paper proposes an overview of the different techniques for reconfiguration applied in microwave components, including electrical, optical, mechanical, and material-based techniques. More attention is given to electrical reconfiguration methods, which currently dominate the applications due to their high-performance characteristics and ease of implementation. Optical reconfigurability uses photonic elements to tune microwave components. It has the advantages of high-speed modulation and immunity to electromagnetic interference. Mechanical reconfigurability uses moving parts to change the physical construction of microwave components and, consequently, allows for fine control, but usually with lower switching speeds. Material-based reconfigurability is performed by smart materials like liquid crystals and phase-change materials. It can dynamically modify the electromagnetic properties of the microwave device. This reconfigurable technique needs a complex setup and has a low switching speed. The basic principles, the advantages and the disadvantages of each reconfigurable technique are stated. Moreover, this paper discusses the implementation of these reconfiguration techniques, including biasing and measurement setup, with their practical considerations. The main performance metrics of insertion loss, isolation, power handling capability, dynamic tuning range and switching speed are studied. | ||
| Keywords | ||
| PIN-diodes; reconfigurable microwave components; RF MEMS; varactors | ||
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