Abstract
A planar low-profile log-periodic antenna based on cavity-backed slot is proposed in this letter. The slot element is made of a microstrip patch on a large ground plane with three edges shorted and one edge open. It is excited by a probe protruding into the cavity from the back of the ground. Through choosing different length and width, each slot element of the array can resonate at different frequency with a same height. A meandered microstrip line on the bottom is used to feed the array, achieving endfire radiation with wide bandwidth. The proposed antenna has been fabricated using printing technology. Measured results show that an operating frequency band from 6.9 to 17.4 GHz (2.52:1) for VSWR λL at the lowest operating frequency are obtained. The proposed array has a good overall performance of wide bandwidth, low profile, and planar structure with easy printing fabrication process, which may be useful for the demand of endfire radiation with low profile.
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 callDisclaimer: 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.
