Improving Channel Capacity Using Adaptive MIMO Antennas

Migliore, Marco Donald; Pinchera, Daniele; Schettino, Fulvio

doi:10.1109/tap.2007.884302

Cited by 59 publications

(61 citation statements)

References 14 publications

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“…The antenna was presented in a previous work by the authors, and has been finally manufactured and tested. In the feasibility study based on simulations, the possibility to achieve, in planar technology, the reconfigurability features of the antenna analysed in [10] had been conjectured. In the present work, the performances and the effectiveness of the antenna have been experimentally confirmed and validated.…”

Section: Discussionmentioning

confidence: 99%

“…A number of antenna architectures, exploiting reconfigurability features [7,8], especially designed for a MIMO approach, has been presented [9][10][11][12][13]. An interesting review of the emerging techniques for printed reconfigurable antennas can be found in [14].…”

Section: Introductionmentioning

confidence: 99%

“…Such antennas are able to adapt their radiating characteristics to the particular realization of the electromagnetic environment in which they are working, thus achieving better performances. In particular, the architecture presented in [9] uses a high number of Micro Electro-Mechanical Systems (MEMS) switches in order to change the radiating characteristics, i.e., the polarization, of each element of the array; the solution presented in [10], instead, is based on a number of parasitic elements surrounding the active ones, connected to electronically controllable impedances. The latter solution can provide an interesting performance improvement but is not as easily embeddable as the former in small size communication systems (like laptops) due to its size.…”

Section: Introductionmentioning

confidence: 99%

“…As a matter of fact, it has been shown [15] that polarization diversity in conjunction with spatial multiplexing allows a better symbol error rate. In [16] a two-port, low-profile, adaptive, parasitic antenna based on a similar operation principle as in [10], but was investigated in planar technology. In addition, the presented antenna provides two radiative modes with orthogonal polarization.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Characterization of a Dual-Polarised Parasitic Patch Antenna

et al. 2017

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Abstract:The aim of this paper is to present the experimental characterization of a reconfigurable parasitic patch antenna for Multiple Input Multiple Output (MIMO) applications. The proposed antenna is able to work with two different polarizations, providing separate control of the antenna pattern of each of the two polarizations. Both numerical and experimental results show the adaptive capabilities of the antenna, proving its effectiveness for MIMO applications.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Experimental Characterization of a Dual-Polarised Parasitic Patch Antenna

et al. 2017

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“…Note the parasitic antennas couple more strongly to the driven antennas when they are placed in the center of the array than when they are placed at the ends of the array [16]. In terms of aperture efficiency, placing the driven antennas at the end of the array is effective in obtaining high MIMO channel capacity [9].…”

Section: Antenna Configurationmentioning

confidence: 99%

A Stochastic Approach to Design MIMO Antenna with Parasitic Elements Based on Propagation Characteristics

Honma

Nishimori

Kudo

et al. 2010

IEICE Trans. Commun.

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SUMMARYThis paper proposes a channel capacity maximization method for Multiple-Input Multiple-Output (MIMO) antennas with parasitic elements. Reactive terminations are connected to the parasitic elements, and the reactance values are determined to achieve stochastically high channel capacity for the environment targeted. This method treats the S-parameter and propagation channel of the antenna, including the parasitic elements, as a combined circuit. The idea of the 'parasitic channel,' which is observed at the parasitic antenna, is introduced to simplify the optimization procedure. This method can significantly reduce the number of necessary measurements of the channel for designing the antenna. As a design example, a bidirectional Yagi-Uda array, which has two driven antennas at both ends of the linear array, is measured in an indoor environment. The resulting design offers enhanced channel capacity mainly due to its improved signal-to-noise ratio compared to the antenna without the parasitic antennas.

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