TY - JOUR T1 - Design and Implementation of Reconfigurable Microstrip Patch Antenna for Cognitive Radio Applications AU - Abdallah Jazea, Najim JO - Journal of Engineering and Applied Sciences VL - 15 IS - 22 SP - 3697 EP - 3707 PY - 2020 DA - 2001/08/19 SN - 1816-949x DO - jeasci.2020.3697.3707 UR - https://makhillpublications.co/view-article.php?doi=jeasci.2020.3697.3707 KW - Reconfigurable KW -cognitive radio KW -MSPA KW -broadband antenna AB - This study focuses on the design and analysis of a reconfigurable antenna that can be integrated into the CR systems. A dual-port “interweave” CR antenna system in which an antenna structure is proposed and designed. This design is composed of an elliptical disk radiator sensing antenna that covers a frequency range of (1.8-11) GHz and a dual-band reconfigurable communicating antenna in the form of a modified dual-band rectangular radiator. By controlling the length of a stub attached to the communicating antenna with the aid of two PIN diodes, the dual-band antenna can reconfigure its resonant frequencies to (2, 2.2 GHz), (3.25, 3.8 GHz) and (4.3, 5.6 GHz). ER -