A Simple Broadband Antenna for MIMO Applications in Cognitive Radio

Dinh Thanh LE; Yoshio KARASAWA

doi:10.1587/transcom.E95.B.18

A Simple Broadband Antenna for MIMO Applications in Cognitive Radio

Dinh Thanh LE, Yoshio KARASAWA

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In this paper, a simple type of printed dipole is proposed for Multi-Input Multi-Output (MIMO) applications in cognitive radio. The antenna is composed of a transmission line and a dipole. Some examinations of key factors and optimized parameters of the antenna are presented. The measured results illustrate that the proposed antenna offers a bandwidth of over 50% for Voltage Standing Wave Ratio (VSWR) less than 2, extending from 2.4 GHz to 4.0 GHz. The antenna peak gain in E-plane and radiation patterns at different frequencies are also explored. In addition, based on the proposed antenna, we introduce two simple broadband arrays for MIMO applications in cognitive radio. One has two ports and the other has four ports. Measurement results indicate that the arrays also work in a broad bandwidth. Mutual couplings between ports in each array are kept under -10 dB at the low frequencies and under -20 dB at the high frequencies of bandwidth of the arrays. Furthermore, we utilized the antenna arrays for some MIMO experiments to estimate the channel capacity in a wide frequency range.

Publication: IEICE TRANSACTIONS on Communications Vol.E95-B No.1 pp.18-26

Publication Date: 2012/01/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E95.B.18

Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2010)

Category: Antennas

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Dinh Thanh LE, Yoshio KARASAWA, "A Simple Broadband Antenna for MIMO Applications in Cognitive Radio" in IEICE TRANSACTIONS on Communications, vol. E95-B, no. 1, pp. 18-26, January 2012, doi: 10.1587/transcom.E95.B.18.
Abstract: In this paper, a simple type of printed dipole is proposed for Multi-Input Multi-Output (MIMO) applications in cognitive radio. The antenna is composed of a transmission line and a dipole. Some examinations of key factors and optimized parameters of the antenna are presented. The measured results illustrate that the proposed antenna offers a bandwidth of over 50% for Voltage Standing Wave Ratio (VSWR) less than 2, extending from 2.4 GHz to 4.0 GHz. The antenna peak gain in E-plane and radiation patterns at different frequencies are also explored. In addition, based on the proposed antenna, we introduce two simple broadband arrays for MIMO applications in cognitive radio. One has two ports and the other has four ports. Measurement results indicate that the arrays also work in a broad bandwidth. Mutual couplings between ports in each array are kept under -10 dB at the low frequencies and under -20 dB at the high frequencies of bandwidth of the arrays. Furthermore, we utilized the antenna arrays for some MIMO experiments to estimate the channel capacity in a wide frequency range.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E95.B.18/_p

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@ARTICLE{e95-b_1_18,
author={Dinh Thanh LE, Yoshio KARASAWA, },
journal={IEICE TRANSACTIONS on Communications},
title={A Simple Broadband Antenna for MIMO Applications in Cognitive Radio},
year={2012},
volume={E95-B},
number={1},
pages={18-26},
abstract={In this paper, a simple type of printed dipole is proposed for Multi-Input Multi-Output (MIMO) applications in cognitive radio. The antenna is composed of a transmission line and a dipole. Some examinations of key factors and optimized parameters of the antenna are presented. The measured results illustrate that the proposed antenna offers a bandwidth of over 50% for Voltage Standing Wave Ratio (VSWR) less than 2, extending from 2.4 GHz to 4.0 GHz. The antenna peak gain in E-plane and radiation patterns at different frequencies are also explored. In addition, based on the proposed antenna, we introduce two simple broadband arrays for MIMO applications in cognitive radio. One has two ports and the other has four ports. Measurement results indicate that the arrays also work in a broad bandwidth. Mutual couplings between ports in each array are kept under -10 dB at the low frequencies and under -20 dB at the high frequencies of bandwidth of the arrays. Furthermore, we utilized the antenna arrays for some MIMO experiments to estimate the channel capacity in a wide frequency range.},
keywords={},
doi={10.1587/transcom.E95.B.18},
ISSN={1745-1345},
month={January},}

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TY - JOUR
TI - A Simple Broadband Antenna for MIMO Applications in Cognitive Radio
T2 - IEICE TRANSACTIONS on Communications
SP - 18
EP - 26
AU - Dinh Thanh LE
AU - Yoshio KARASAWA
PY - 2012
DO - 10.1587/transcom.E95.B.18
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E95-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2012
AB - In this paper, a simple type of printed dipole is proposed for Multi-Input Multi-Output (MIMO) applications in cognitive radio. The antenna is composed of a transmission line and a dipole. Some examinations of key factors and optimized parameters of the antenna are presented. The measured results illustrate that the proposed antenna offers a bandwidth of over 50% for Voltage Standing Wave Ratio (VSWR) less than 2, extending from 2.4 GHz to 4.0 GHz. The antenna peak gain in E-plane and radiation patterns at different frequencies are also explored. In addition, based on the proposed antenna, we introduce two simple broadband arrays for MIMO applications in cognitive radio. One has two ports and the other has four ports. Measurement results indicate that the arrays also work in a broad bandwidth. Mutual couplings between ports in each array are kept under -10 dB at the low frequencies and under -20 dB at the high frequencies of bandwidth of the arrays. Furthermore, we utilized the antenna arrays for some MIMO experiments to estimate the channel capacity in a wide frequency range.
ER -