Abstract
Article describes the methods of approximation of electromagnetic field spatial distribution, which spatial samples are measured using an annular antenna array located near scatterer with a priori unknown geometry and material properties. As example, case of mobile phone located at user’s head were studied. The model of the human head and hand was simulated as a layered structure, the outer layer imitated the skin, and water was used as the inner filling. The study results show good performance of modified method of forming a “virtual” antenna array, which can significantly reduce the field approximation error, thereby making it possible to successfully predict the electromagnetic field phase structure at distances exceeding the radius of the used antenna array by three times. Proposed method can significantly increase the efficiency of subspace methods of direction finding and methods of adaptive signal processing in multichannel systems (in particular, the MIMO) due to the multiple increase in the number of virtual channels which are functionally equivalent to additional real channels, and also - increasing the electrical dimensions of the antenna system (“virtual” antenna array).
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: IOP Conference Series: Materials Science and 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.
