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Proceedings ArticleDOI

Design of DGS based dual-element multiband (DEMB) MIMO antenna for GPS and LTE-A applications

TL;DR: In this paper, a dual-element multi-band (DEMB)cleft based and skewed cleft based MIMO antennas are designed for Long Term Evolution Advanced (LTE-A) and Global positioning system (GPS) wireless applications.
Abstract: A Dual-Element Multi-band (DEMB)cleft based and skewed cleft based Multiple Input Multiple Output (MIMO) antennas are designed for Long Term Evolution Advanced(LTE-A)and Global positioning system (GPS) wireless applications. As part of Defected Ground plane Structure (DGS), a T-shaped structure is used in the ground plane with Complementary Split Ring Resonator (CSRR) and dual H-shaped slot is etched from it to improve the isolation between the antennas. The Envelope Correlation Coefficient (ECC) obtained at both the cases is less than 0.0005.
References
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BookDOI
24 Aug 2010
TL;DR: Paying special attention to compatibility issues among these networks, this book provides the understanding required to deploy and optimize networks that meet the growing demands for mobile data solutions.
Abstract: Most books on network planning and optimization provide limited coverage of either GSM or WCDMA techniques. Few scrape the surface of HSPA, and even fewer deal with TD-SCDMA. Filling this void, Evolved Cellular Network Planning and Optimization for UMTS and LTE presents an accessible introduction to all stages of planning and optimizing UMTS, HSPA, and LTE cellular networks. Supplying a comprehensive explanation of the fundamental aspects of current and future cellular networks, the text starts with an overview of each type of network, including basic techniques and channel models. Next, it examines the challenges operators and vendors are likely to faceexplainingthe critical role network planning and optimization play in addressing these challenges. The book detailseffective system-level simulation methods, it alsoprovides: A complete overview of UMTS, HSPA, and LTE networks Techniques for planning and optimizing cellular networks An examination of inter-operation issues with existing cellular networks Coverage of the challenges in deploying LTE and relay networks In addition toexploring the procedures for planning and optimizing each type of network, the textcovers techniques for major mechanisms, trending, troubleshooting, and conducting radio performance analysis. Paying special attention to compatibility issues among these networks, this book provides theunderstandingrequired to deploy and optimize networks that meet the growing demands for mobile data solutions.

186 citations

Journal ArticleDOI
TL;DR: In this paper, a dual-band 4-shaped printed MIMO antenna system of two elements was designed and fabricated for Long Term Evolution (LTE) wireless handheld and portable terminals.
Abstract: A novel dual-band 4-shaped printed multiple-input-multiple-output (MIMO) antenna system of two elements is designed and fabricated for Long Term Evolution (LTE) wireless handheld and portable terminals. The low frequency band covered is 803-823 MHz, and the high frequency band covered is 2440-2900 MHz. The isolation between the two elements was more than 17 dB in the low band after using a defected ground plane structure (DGS) between the two antenna elements. The overall size of the printed MIMO antenna system was 50× 100×1.56 mm3.

146 citations

Journal ArticleDOI
TL;DR: In this paper, a triple-band antenna for the frequency bands 2.4, 3.5 and 5 GHz is proposed for the IEEE 802.11a/b/g and 802.16e standards.
Abstract: This paper presents a compact triple band antenna for the frequency bands 2.4, 3.5 and 5 GHz. These bands are assigned to the IEEE 802.11a/b/g and IEEE 802.16e standards. The resonant modes for WLAN, WiMAX bands are achieved by employing a rectangular slot and a metamaterial inspired split ring structure. The extraction procedure of negative permeability for the proposed split ring resonator is discussed in detail. Tunability between the WLAN and WiMAX standards is demonstrated by using a single PIN diode. The proposed antenna with a compact size of 27 mm × 25 mm is fabricated and tested. The triple band antenna yields a −10 dB impedance bandwidth of about 18.6%, 4.3% and 40.3% in 2.4, 3.5 and 5 GHz bands respectively. Stable radiation patterns with low cross polarization and high average antenna gain of 2.46 dBi are observed for the operating bands.

82 citations


"Design of DGS based dual-element mu..." refers background in this paper

  • ...A Complementary Split Ring Resonator (CSRR) is used as a part of DGS on a T-shaped slot....

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  • ...In [5], the authors propose a novel compact multiband MIMO Antenna with isolation enhancement from with isolation enhancement using a T-shaped ground plane....

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  • ...A T-shaped gro with H-shaped slot etched from it. has the W shaped structure and he called asW-shaped antenna....

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Journal ArticleDOI
TL;DR: In this paper, a novel compact MIMO antenna for personal digital assistant (PDA) and pad computer is proposed, which is composed by two multipatch monopole antennas placed 90° apart for orthogonal radiation.
Abstract: A novel compact MIMO antenna for personal digital assistant (PDA) and pad computer is proposed. The proposed antenna is composed by two multipatch monopole antennas which are placed 90° apart for orthogonal radiation. To strengthen the isolation, a T-shaped ground branch with proper dimension is used to generate an additional coupling path to lower the mutual coupling (below −15 dB), especially at GSM850/900 band. The proposed MIMO antenna is fabricated and tested, both the simulated and the measured results are presented, and some parametric studies are also demonstrated. In addition, there are some advantages about the proposed antenna such as simple structure, easy fabrication, and low cost.

48 citations


"Design of DGS based dual-element mu..." refers background in this paper

  • ...In literature, most of the work shows an antenna designed for only single or dual operating band for dual element MIMO antenna systems[3-4]....

    [...]

Journal ArticleDOI
TL;DR: In this paper, a compact printed multiple-input multiple-output (MIMO) antenna for tetraband (GSM900/1800/1900/UMTS) mobile handset application is presented.
Abstract: A compact printed multiple-input multiple-output (MIMO) antenna for tetraband (GSM900/1800/1900/UMTS) mobile handset application is presented. The proposed MIMO antenna, which consists of two coupled-fed loop antennas with symmetrical configuration, was printed on a 120 * 60 * 0.8 mm3 Fr-4 substrate of relative permittivity of 4.4, loss tangent 0.02. Each element antenna requires only a small area of 22.5 * 25 mm2 on the circuit board. The edge-to-edge spacing between the two elements is only of 920 MHz. A slot and a dual-inverted-L-shaped ground branch were added in the ground plane to decrease the mature coupling between the antenna elements. The measured isolation of the proposed antenna is better than 15 dB among the four operating frequency bands. The simulated 3D radiation patterns at 900 MHz and 1900 MHz of both antenna elements show that two loop antennas in general cover complementary space regions with good diversity performance. Detailed antenna impedance matching performance comparisons were done to evaluate the benefit of using different decoupling technology. The envelop correlation coefficient is calculated to represent the diversity performance of the MIMO antenna.

28 citations