Simple and efficient decoupling of compact arrays with parasitic scatterers
BK Lau, JB Andersen - IEEE Transactions on Antennas and …, 2011 - ieeexplore.ieee.org
Compact arrays such as multiple antennas on a mobile terminal suffer from low efficiency
and high correlation between antenna signals. In the present paper, a simple and rigorous …
and high correlation between antenna signals. In the present paper, a simple and rigorous …
A decoupling and matching network design for single-and dual-band two-element antenna arrays
This article presents a new decoupling and matching network (DMN) design for symmetric,
single-and dual-band two-element antenna arrays. The DMNs use parallel-line-based …
single-and dual-band two-element antenna arrays. The DMNs use parallel-line-based …
Antennas in cellular phones for mobile communications
Z Ying - Proceedings of the IEEE, 2012 - ieeexplore.ieee.org
The mobile industry has experienced a dramatic growth; it evolves from analog to digital 2G
(GSM), then to high date rate cellular wireless communication such as 3G (WCDMA), and …
(GSM), then to high date rate cellular wireless communication such as 3G (WCDMA), and …
A superdirective beamforming approach with impedance coupling and field coupling for compact antenna arrays
In most multiple-input multiple-output (MIMO) communication systems, antennas are spaced
at least half a wavelength apart to reduce mutual coupling. In this configuration, the …
at least half a wavelength apart to reduce mutual coupling. In this configuration, the …
Frequency reconfigurable multiband handset antenna based on a multichannel transceiver
JM Hannula, T Saarinen, J Holopainen… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
The upcoming standards of wireless communications result in additional and more stringent
requirements for antennas in mobile phones. In this paper, we present a …
requirements for antennas in mobile phones. In this paper, we present a …
Tunable decoupling and matching network for diversity enhancement of closely spaced antennas
A tunable decoupling and matching network (DMN) for a two-element closely spaced
antenna array is presented. The DMN achieves perfect matching for the eigenmodes of the …
antenna array is presented. The DMN achieves perfect matching for the eigenmodes of the …
Unbroken metal rim MIMO antenna utilizing antenna clusters
R Luomaniemi, JM Hannula… - IEEE Antennas and …, 2019 - ieeexplore.ieee.org
This letter presents an antenna system for mobile devices with an unbroken metal rim. By
utilizing the characteristic mode analysis for the unbroken metal rim, efficient multiple-input …
utilizing the characteristic mode analysis for the unbroken metal rim, efficient multiple-input …
Systematic design of large-scale multiport decoupling networks
D Nie, BM Hochwald, E Stauffer - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
In radio-frequency systems that drive coupled dissipative loads, the matching network
between the amplifiers and their loads needs to account for the coupling. With N amplifiers …
between the amplifiers and their loads needs to account for the coupling. With N amplifiers …
Tunable eight‐element MIMO antenna based on the antenna cluster concept
JM Hannula, TO Saarinen, A Lehtovuori… - IET Microwaves …, 2019 - Wiley Online Library
Realising capacity demands of future wireless communications require improved spectral
efficiency in the sub‐6 GHz frequency bands. This study proposes a novel eight‐element …
efficiency in the sub‐6 GHz frequency bands. This study proposes a novel eight‐element …
Comparison of compact monopole antenna arrays with eigenmode excitation and multiport conjugate matching
The compactness of antenna arrays is highly restricted due to the mutual coupling between
the radiation elements, which degrades the performance of impedance matching, radiation …
the radiation elements, which degrades the performance of impedance matching, radiation …