Abstract
Modern antenna design is facing increasing issues with the radiation efficiency, since the space available for antennas is scarce and antennas are fitted into lossy environments. This letter presents a multiport antenna design method with a computationally efficient way to realize the port currents providing the highest radiation efficiency. In this method, an antenna is described with multiple excitation ports in electromagnetic simulations. The measurement results of an example design demonstrate the achieved benefit compared to traditional antenna design.
Highlights
W ITH the advance of wireless communications, antenna designers face increasing challenges
We introduce the method for modeling the antenna structure in terms of port currents and realizing the optimal currents in the ports, confirm the functionality of the method with a practical prototype and demonstrate the effectiveness of the proposed approach with measurements
There is no practical way to excite the current distribution found in [8]. This is because any practical excitation element would affect the surface impedance matrix and the optimal current distribution, whereas the excitation elements are inherently included in the port impedance matrix
Summary
W ITH the advance of wireless communications, antenna designers face increasing challenges. These methods are attractive as they retrieve the optimal current distribution through optimization with no manual iteration needed. Incorporating such optimal current distributions into practical antenna design is challenging. This letter presents a method for designing a practical antenna with port currents optimized for radiation efficiency. The antenna design procedure is straightforward and does not necessitate manual iteration This is accomplished by discretizing the antenna structure and solving the discrete current elements. The proposed method obtains the optimal currents directly from the impedance matrix and port-specific field patterns without a need to construct basis functions as an intermediate result. The proposed method can be considered more straightforward and simpler
Sign-in/Register to view highlights & summary 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.
