@article{MAKHILLJEAS2020152219491,
    title = {Design and Implementation of Reconfigurable Microstrip Patch Antenna for Cognitive Radio
Applications},
    journal = {Journal of Engineering and Applied Sciences},
    volume = {15},
    number = {22},
    pages = {3697-3707},
    year = {2020},
    issn = {1816-949x},
    doi = {jeasci.2020.3697.3707},
    url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2020.3697.3707},
    author = {Najim},
    keywords = {Reconfigurable,cognitive radio,MSPA,broadband antenna},
    abstract = {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).}
    }