Abstract
In this paper, a dual polarized slot antenna for ultra wideband applications is proposed. The slot has an overall shape of a square ring whose four arms are identical and stepped rectangular. While two adjacent arms of the ring are microstrip fed and are responsible for the orthogonally polarized fields, the other two arms are introduced to make the structure symmetric and reduce the cross polarization. The impedance matching and isolation are controlled by properly shaping the slot arms and the feed section and by insertion of several narrow metallic and slot stubs. The measured impedance bandwidth is 116% (from 3.2GHz to 12.0GHz) for both the ports. The isolation is better than 20dB from 4.4GHz onwards. With the help of radiation patterns and electric field distribution inside the slot, the dual polarized nature of the antenna is justified. A modified design having measured isolation of 18dB from 3.5GHz onwards is also presented. With compact features, huge impedance bandwidth, good isolation and acceptable cross polar levels along the boresight direction, the antenna is expected to be useful for UWB transmission incorporating MIMO, radar and medical imaging applications.
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: AEUE - International Journal of Electronics and Communications
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.
