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Proceedings ArticleDOI

Designing the Symmetrical Eight-Tooth-Shaped Microstrip Antenna for Wi-Fi Applications

TL;DR: The problem of designing a symmetrical eight-tooth-shaped microstrip dual-band Wi-Fi antenna (2.4 GHz and 5 GHz) is considered and a family ofWi-Fi dual- band antennas with a certain ratio of length to depth of rectangular cutouts of the radiator is selected by analyzing the models.
Abstract: The problem of designing a symmetrical eight-tooth-shaped microstrip dual-band Wi-Fi antenna (2.4 GHz and 5 GHz) is considered. At the first stage of antenna design, numerical experiments are performed to determine the dependence of values of the first two resonance frequencies of the antenna and the corresponding bandwidths on the geometric parameters of the radiator. A regression analysis is carried out and regression models for resonance frequencies are obtained. The absolute and relative errors for the models are calculated. A family of Wi-Fi dual-band antennas with a certain ratio of length to depth of rectangular cutouts of the radiator is selected by analyzing the models. Further analysis of the matching and of the bandwidth for the antennas from the obtained family allows determining the best matched Wi-Fi antennas.
Citations
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Proceedings ArticleDOI
01 Nov 2019
TL;DR: In this article, a monopole microstrip antenna with the radiator having two pairs of rectangular teeth of different sizes is considered and the influence of the size of the teeth and the position of the cutouts between them on the electrodynamic characteristics of the antenna at the first and second resonance frequencies is studied.
Abstract: A monopole microstrip antenna with the radiator having two pairs of rectangular teeth of different sizes is considered. The influence of the size of the teeth and the position of the cutouts between them on the electrodynamic characteristics of the antenna at the first and second resonance frequencies is studied. Based on the results of the analysis, the approach is proposed to optimize the electrodynamic characteristics of this antenna type for given parameters. The practical application of this approach in the designing the four-tooth-shaped dual-band antenna for Wi-Fi applications is shown.

7 citations


Cites methods from "Designing the Symmetrical Eight-Too..."

  • ...For example, in [15]–[17] single- and double-band symmetric four-tooth-shaped microstrip antennas are designed using regression models and solving problems of optimizing the electrodynamic characteristics of the antenna....

    [...]

Journal ArticleDOI
TL;DR: In this article, a symmetrical tooth-shaped radiator is obtained from a rectangular radiator by adding small symmetrical rectangular cutouts on its two sides, and regression models are constructed for each type of the antenna.
Abstract: Printed monopole antennas with a rectangular radiator as well as with a symmetrical tooth-shaped radiator are considered. The tooth-shaped radiator is obtained from a rectangular radiator by adding small symmetrical rectangular cutouts on its two sides. The antennas with four-, six- and eight-tooth-shaped radiators are considered. For the antennas, the influence of the radiator geometry parameters on the two base resonance frequencies is studied. The common features and characteristics of the dependences of the resonances on the radiator parameters are revealed for the considered tooth-shaped antennas. Regression models are constructed for each type of the antenna. In the obtained models, the values of the two base resonances are functions of the length and width of the radiator as well as of the depth of rectangular cutouts on it. The designing of dual-band printed monopole tooth-shaped antennas for various numbers of cutouts on the radiator is proposed. For the design of the shape of the radiator antennas, regression models are used, which allow to obtain the parameters of the radiator for given resonance frequencies. Examples of obtained antennas with various numbers of teeth are given. Conclusions about the applicability of antennas of this type for operation on two bands are given.

4 citations

Proceedings ArticleDOI
01 Sep 2020
TL;DR: The work’s goal is to establish the dependence of the base frequency on the dimension of the curve forming the antenna arm of the Koch type, and it is concluded that for the second and third iterations, the best correlation is a correlation between the base Frequency and the Higuchi dimension.
Abstract: A dipole wire antenna of the Koch type is considered. The antenna consists of a wire dipole with symmetrical arms with respect to the feed point with the geometry similar to the Koch prefractal. The curves forming the arms differ from the classical Koch fractal only by the position of the central vertex. The work’s goal is to establish the dependence of the base frequency on the dimension of the curve forming the antenna arm. Various dimensions as characteristics of the curve are considered. The dimensions are Minkowski dimension, information dimension, correlation dimension and Higuchi fractal dimension. The algorithm to calculate the Higuchi dimension for our curves is adapted. Also, algorithms for calculating the other dimensions are described. Relationships between the base frequency of the Koch-type wire dipole and the dimensions are explored. The correlation analysis for the first three Koch-type prefractals is carried out. The values of all correlation coefficients between the base frequency and the considered dimensions are given in the tables. It is concluded that for the second and third iterations, the best correlation is a correlation between the base frequency and the Higuchi dimension. The optimal one-parameter regression models for the base frequency in the case of the second and third iterations are constructed. The obtained regression model for the second iteration approximates the frequency values with an error of 1.17%. The model for the third iteration approximates the frequency values with an error of 1.46%.

4 citations


Cites methods from "Designing the Symmetrical Eight-Too..."

  • ...Also, regression models for the base frequency are used for monopole antennas [21]....

    [...]

Proceedings ArticleDOI
01 Sep 2020
TL;DR: An approach to design using regression models of a tooth-shaped antenna for the desired wireless network parameters is presented and optimization problems are constructed and numerically solved, which allows to quickly determine the optimal values of the geometric parameters of the tooth- shaped radiator.
Abstract: The design of a symmetrical six-tooth-shaped monopole microstrip antenna is considered. The effect of rectangular cutouts on the radiator and the length and the width of the radiator on the reflection coefficient of the base frequency antenna is studied. A nonlinear regression model with good accuracy is constructed for this characteristic. An approach to design using regression models of a tooth-shaped antenna for the desired wireless network parameters is presented. Optimization problems are constructed and numerically solved, which allows to quickly determine the optimal values of the geometric parameters of the tooth-shaped radiator. The application of this approach to the design of a six-tooth-shaped single-band antenna for Wi-Fi applications is demonstrated.

1 citations


Cites background or methods from "Designing the Symmetrical Eight-Too..."

  • ...It was revealed in [19] that the base frequency strongly depends on the length of a rectangular and tooth-shaped radiator....

    [...]

  • ...We use the quadratic function (2) obtained in [19] for a rectangular radiator at the base frequency: ( ) = 5....

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  • ...For example, in [19-21] single- and double-band symmetric four-tooth-shaped microstrip antennas were designed using regression models and problems of optimizing the electrodynamic characteristics of the antenna were solved....

    [...]

Journal ArticleDOI
TL;DR: A simple rectangular patch triband microstrip antenna in the form of rectangular slots with different lengths loaded on the rectangular patch with reduced ground size is developed to use for Bluetooth/WiFi applications.
Abstract: In recent years, according to the requirements of wireless applications, multiband and low profile patch antennas are desired. In this study, a simple rectangular patch triband microstrip antenna is developed to use for Bluetooth/WiFi applications. The antenna is in the form of rectangular slots with different lengths loaded on the rectangular patch with reduced ground size. FR-4 substrate with 1.6 mm thickness is used as substrate material and annealed copper is used as ground and patch materials. The designed antenna is simulated using CST MWS software program. Microstrip line feeding technique with discrete port is used to feed the antenna. According to the results, S11 parameters of three resonant frequencies can be given as -15.08 dB, -11.88 dB and -24.03 dB at 2.39 GHz, 3.07 GHz and 4.92 GHz respectively. Gain values of the resonance frequencies can be given as follows, 2.25 dBi, 3.76 dBi and 1.92 dBi at 2.39 GHz, 3.07 GHz and 4.92 GHz respectively. Proposed antenna bandwidth can be given as, 197.5 MHz (2.29 GHz – 2.49 GHz) at 2.39 GHz, 116.1 MHz (3.01 GHz – 3.13 GHz) at 3.07 GHz and 266.2 MHz (4.79 GHz – 5.06 GHz) at 4.92 GHz, respectively. Since the designed antenna can work at 2.4 GHz and 5 GHz frequency bands with 2.24 dBi and 2.34 dBi, respectively, IEEE 802.11ac/b/g standards are supported by the antenna. So the proposed antenna can be used for Bluetooth and 2.4 GHz/5GHz WiFi applications.
References
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Book
01 Jan 1982
TL;DR: The most up-to-date resource available on antenna theory and design as mentioned in this paper provides an extended coverage of ABET design procedures and equations making meeting ABET requirements easy and preparing readers for authentic situations in industry.
Abstract: The most-up-to-date resource available on antenna theory and design Expanded coverage of design procedures and equations makes meeting ABET design requirements easy and prepares readers for authentic situations in industry New coverage of microstrip antennas exposes readers to information vital to a wide variety of practical applicationsComputer programs at end of each chapter and the accompanying disk assist in problem solving, design projects and data plotting-- Includes updated material on moment methods, radar cross section, mutual impedances, aperture and horn antennas, and antenna measurements-- Outstanding 3-dimensional illustrations help readers visualize the entire antenna radiation pattern

14,065 citations


"Designing the Symmetrical Eight-Too..." refers background in this paper

  • ...Microstrip antennas are the most widely used of them [2, 3]....

    [...]

01 Jan 2005
TL;DR: The most up-to-date resource available on antenna theory and design is the IEEE 802.11 as mentioned in this paper, which provides detailed coverage of ABET design procedures and equations, making meeting ABET requirements easy and preparing readers for authentic situations in industry.
Abstract: The most-up-to-date resource available on antenna theory and design. Expanded coverage of design procedures and equations makes meeting ABET design requirements easy and prepares readers for authentic situations in industry. New coverage of microstrip antennas exposes readers to information vital to a wide variety of practical applications.Computer programs at end of each chapter and the accompanying disk assist in problem solving, design projects and data plotting.-- Includes updated material on moment methods, radar cross section, mutual impedances, aperture and horn antennas, and antenna measurements.-- Outstanding 3-dimensional illustrations help readers visualize the entire antenna radiation pattern.

2,907 citations

BookDOI
08 Nov 2010
TL;DR: In this article, Chen et al. present a survey of the state-of-the-art in the field of reconfigurable antenna design and their application in WSNs and wearable antenna networks.
Abstract: Preface. List of Contributors. Acknowledgments. 1 Numerical Analysis Techniques (Ramesh Garg). 1.1 Introduction. 1.2 Standard (Yee s) FDTD Method. 1.3 Numerical Dispersion of FDTD Algorithms and Hybrid Schemes. 1.4 Stability of Algorithms. 1.5 Absorbing Boundary Conditions. 1.6 LOD-FDTD Algorithm. 1.7 Robustness of Printed Patch Antennas. 1.8 Thin Dielectric Approximation. 1.9 Modeling of PEC and PMC for Irregular Geometries. References. 2 Computer Aided Design of Microstrip Antennas (Debatosh Guha and Jawad Y. Siddiqui). 2.1 Introduction. 2.2 Microstrip Patch as Cavity Resonator. 2.3 Resonant Frequency of Circular Microstrip Patch (CMP). 2.4 Resonant Frequency of Rectangular Microstrip Patch (RMP) with Variable Air Gap. 2.5 Resonant Frequency of an Equilateral Triangular Microstrip Patch (ETMP) with Variable Air Gap. 2.6 Input Impedance of a Microstrip Patch. 2.7 Feed Reactance of a Probe-Fed Microstrip Patch. 2.8 Radiation Characteristics. 2.9 Radiation Efficiency. 2.10 Bandwidth. 2.11 Conclusion. References. 3 Generalized Scattering Matrix Approach for Multilayer Patch Arrays (Arun K. Bhattacharyya). 3.1 Introduction. 3.2 Outline of the GSM Approach. 3.3 Mutual Coupling Formulation. 3.4 Finite Array: Active Impedance and Radiation Patterns. 3.5 Numerical Example. 3.6 Conclusions. 3.7 References. 4 Optimization Techniques for Planner Antennas (Rabindra K. Mishra). 4.1 Introduction. 4.2 Basic Optimization Concepts. 4.3 Real Coded Genetic Algorithm (RCGA). 4.4 Neurospectral Design of Rectangular Patch Antenna. 4.5 Inset-fed Patch Antenna Design Using Particle Swarm Optimization. 4.6 Conclusion. References. 5 Microstrip Reflectarray Antennas (Jafar Shaker and Reza Chaharmir). 5.1 Introduction. 5.2 General Review of Reflectarrays: Mathematical Formulation and General Trends. 5.3 Comparison of Reflectarray and Conventional Parabolic Reflector. 5.4 Cell Elements and Specific Applications: A General Survey. 5.5 Wideband Techniques for Reflectarrays. 5.6 Development of Novel Loop-Based Cell Elements. 5.7 Conclusion. References. 6 Reconfigurable Microstrip Antennas (Jennifer T. Bernhard). 6.1 Introduction. 6.2 Substrate Modification for Reconfigurability. 6.3 Conductor Modification for Reconfigurability. 6.4 Enabling Reconfigurability: Considerations for Reconfiguration Mechanisms. 6.5 Future Trends in Reconfigurable Microstrip Antenna Research and Development. References. 7 Wearable Antennas for Body Area Networks (Peter S. Hall and Yang Hao). 7.1 Introduction. 7.2 Sources on the Human Body. 7.3 Narrowband Antennas. 7.4 Fabric Antennas. 7.5 Ultra Wideband Antennas. 7.6 Multiple Antenna Systems. 7.7 Conclusion. References. 8 Printed Antennas for Wireless Communications (Satish K. Sharma and Lotfollah Shafai). 8.1 Introduction. 8.2 Broadband Microstrip Patch Antennas. 8.3 Patch Antennas for Multiband Wireless Communications. 8.4 Enhanced Gain Patch Antennas. 8.5 Wideband Compact Patch Antennas. 8.6 Microstrip Slot Antennas. 8.7 Microstrip Planar Monopole Antenna. References. 9 UHF Passive RFID Tag Antennas (Daniel Deavours and Daniel Dobkin). 9.1 Introduction. 9.2 Application Requirements. 9.3 Approaches. 9.4 Fabrication. 9.5 Conclusion. References. 10 Printed UWB Antennas (Zhi Ning Chen, Xianming Qing and Shie Ping See). 10.1 Introduction. 10.2 Swan Antenna with Reduced Ground Plane Effect. 10.3 Slim UWB Antenna. 10.4 Diversity Antenna. 10.5 Printed Slot UWB Antenna and Band-Notched Solutions. References. 11 Metamaterial Antennas and Radiative Systems (Christophe Caloz). 11.1 Introduction. 11.2 Fundamentals of Metamaterials. 11.3 Leaky-Wave Antennas. 11.4 Resonant Antennas. 11.5 Exotic Radiative Systems. References. 12 Defected Ground Structure for Microstrip Antennas (Debatosh Guha, Sujoy Biswas, and Yahia M. M. Antar). 12.1 Introduction. 12.2 Fundamentals of DGS. 12.3 DGS for controlling Microstrip Antenna Feeds and Front-End Characteristics. 12.4 DGS to Control/Improve Radiation Properties of Microstrip Patch Antennas. 12.5 DGS for Reduced Mutual Coupling between Microstrip Array Elements and Associated Improvements. 12.6 Conclusion. Appendix: A Brief DGS Chronology. References. 13 Printed Leaky Wave Antennas (Samir F. Mahmoud and Yahia M. M. Antar). 13.1 Introduction. 13.2 The Leaky Wave as a Complex Plane Wave. 13.3 Radiation Pattern of a Leaky Wave. 13.4 Examples of Leaky Mode Supporting Structures. 13.5 The Excitation Problem. 13.6 Two-Dimensional Leaky Waves. 13.7 Further Advances on a Class of Periodic Leaky Wave Antennas. References. Appendix I Preliminary Ideas: PTFE-Based Microwave Lamiantes and Making Prototypes. Appendix II Preliminary Ideas: Microwave Connectors for Printed Circuits and Antennas. Index.

260 citations


"Designing the Symmetrical Eight-Too..." refers background in this paper

  • ...Microstrip antennas are the most widely used of them [2, 3]....

    [...]

Journal ArticleDOI
27 Jun 2016-Sensors
TL;DR: Two new dual-frequency microstrip antennas are designed with the use of electromagnetic simulation software—High Frequency Structure Simulator (HFSS) that have a higher gain and a favourable transmission characteristic in the working frequency range, which is in accordance with the requirements of WLAN communication.
Abstract: Wireless local area network (WLAN) is a technology that combines computer network with wireless communication technology. The 2.4 GHz and 5 GHz frequency bands in the Industrial Scientific Medical (ISM) band can be used in the WLAN environment. Because of the development of wireless communication technology and the use of the frequency bands without the need for authorization, the application of WLAN is becoming more and more extensive. As the key part of the WLAN system, the antenna must also be adapted to the development of WLAN communication technology. This paper designs two new dual-frequency microstrip antennas with the use of electromagnetic simulation software—High Frequency Structure Simulator (HFSS). The two antennas adopt ordinary FR4 material as a dielectric substrate, with the advantages of low cost and small size. The first antenna adopts microstrip line feeding, and the antenna radiation patch is composed of a folded T-shaped radiating dipole which reduces the antenna size, and two symmetrical rectangular patches located on both sides of the T-shaped radiating patch. The second antenna is a microstrip patch antenna fed by coaxial line, and the size of the antenna is diminished by opening a stepped groove on the two edges of the patch and a folded slot inside the patch. Simulation experiments prove that the two designed antennas have a higher gain and a favourable transmission characteristic in the working frequency range, which is in accordance with the requirements of WLAN communication.

37 citations


"Designing the Symmetrical Eight-Too..." refers methods in this paper

  • ...The methods can include, for example, applying various feeding methods and substrate materials [7], adding slots in the radiator, changing the radiator geometry itself, correcting in a gradual manner the slot sizes until obtaining a wellmatched antenna in a predetermined frequency range....

    [...]

Proceedings ArticleDOI
01 Oct 2016
TL;DR: This review paper presents the work done on micro-strip patch antennas in the last decade with the focus of improving antenna parameters like gain, directivity, and bandwidth and return loss.
Abstract: An enormous development in the study of micro-strip patch antennas has been observed in the recent years. This review paper presents the work done on micro-strip patch antennas in the last decade. Different antenna structures have been proposed with the focus of improving antenna parameters like gain, directivity, and bandwidth and return loss. Work has been done to make the antennas more compact and low profile. Use of ferrites in designing a patch antenna and its impact on antenna parameters is also discussed.

19 citations


"Designing the Symmetrical Eight-Too..." refers methods in this paper

  • ...There exist many different methods to design such antennas [5, 6]....

    [...]