Combinatory Feeding Method for Mobile Applications

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2019-07-01
Major/Subject
Mcode
Degree programme
Language
en
Pages
5
1312-1316
Series
IEEE Antennas and Wireless Propagation Letters, Volume 18, issue 7
Abstract
This letter presents a method for implementing frequency reconfigurability without lumped elements. The method is based on feeding an antenna element simultaneously at different locations with differently delayed and amplified signals and dynamically manipulating the number of active feeds. To demonstrate the concept, an example design of a handset antenna that is compatible with most modern mobile phones is presented. The proposed antenna geometry is simple and practical, consisting only of a folded rectangular sheet and four feeding points. The simulated efficiency of the antenna is higher than 50% from 0.7 GHz to 7 GHz with the highest efficiency being above 90% in 2x2 MIMO operation
Description
Keywords
Antenna feeds, Resonant frequency, Telephone sets, MIMO communication, Scattering parameters, Mobile antennas, multifrequency antennas, multiple-input multiple-output (MIMO) antennas, reconfigurable antennas
Other note
Citation
Saarinen , T , Hannula , J-M , Lehtovuori , A & Viikari , V 2019 , ' Combinatory Feeding Method for Mobile Applications ' , IEEE Antennas and Wireless Propagation Letters , vol. 18 , no. 7 , 8717619 , pp. 1312-1316 . https://doi.org/10.1109/LAWP.2019.2914357