Abstract
In this article, metamaterial with composite structure is presented to improve the radiation properties of antipodal Vivaldi antenna (AVA). Metamaterial layers, which have a high permittivity than substrate, are used to direct the electromagnetic waves radiated from the sides of the AVA to the end-fire direction in the frequency band of 1–8 GHz. On this basis, the proposed antenna can achieve a high gain in the whole operating band, and the maximum gain is 18.24 dBi at 7 GHz. At the same time, a narrower half-power beamwidth (HPBW) is obtained both on H-planes and E-planes. Compared with the simulation results, the measurements show a better agreement with them. Thanks to these properties, this antenna has a potential in ground penetrating radar, UAV countermeasures system and other broadband wireless systems like these.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of RF and Microwave Computer-Aided Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
