Enhanced low band MIMO terminal antenna based on selective feeding of chassis modes

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Sammanfattning

Multiple-input multiple-out (MIMO) is a mature technology in modern wireless communications. However, it is challenging to implement multi-antennas for MIMO operation in compact mobile terminals, due to high mutual coupling and correlation among closely spaced antenna elements. Moreover, a conventional terminal chassis only offers one resonant mode below 1 GHz, complicating multi-antenna design. Recently, it has been shown that the chassis can be modified to facilitate a few resonant modes below 1 GHz. However, attempts to excite these modes selectively using a single coupling feed per antenna port result in limited bandwidth and isolation. In this work, we propose dual-feed antenna ports to improve selective feeding of the resonant modes of an existing two-port MIMO terminal antenna below 1 GHz. Simulation results reveal significantly enhanced bandwidths of 30% and 15% for the two ports, as well as high isolation of over 32 dB.
Originalspråkengelska
Titel på värdpublikation14th European Conference on Antennas and Propagation (EuCAP)
FörlagIEEE - Institute of Electrical and Electronics Engineers Inc.
DOI
StatusPublished - 2020
Evenemang14th European Conference on Antennas and Propagation – EuCAP 2020 - Copenhagen, Danmark
Varaktighet: 2020 mars 152020 mars 20

Konferens

Konferens14th European Conference on Antennas and Propagation – EuCAP 2020
Land/TerritoriumDanmark
OrtCopenhagen
Period2020/03/152020/03/20

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