Design of a Multimode MIMO Antenna Using the Theory of Characteristic Modes
Alternativní metriky PlumXhttp://hdl.handle.net/11012/57131
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In this communication, the design procedure of a multimode Multiple-Input Multiple-Output (MIMO) antenna is presented. The antenna consists of a metallic ring antenna operating with different orthogonal modes, whose performance in a MIMO system is similar to traditional antenna arrays. Thus, a compact MIMO antenna is obtained, which is very suitable for mobile terminals. A modal analysis of the antenna is carried out first by means of the Theory of Characteristic Modes, in order to identify the different radiating modes of the antenna. Then a set of feeding configurations is proposed so as to excite these modes. As the modes must operate in the same frequency band, a loading technique is used in the antenna in order to shift the resonance frequency of the modes to the proper band.
Zdrojový dokumentRadioengineering. 2009, vol. 18, č. 4, s. 425-430. ISSN 1210-2512
- 2009/4