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DOI

On base frequency of the symmetrical six-tooth-shaped microstrip antenna

06 Jan 2019-Vol. 5, Iss: 18, pp 510-519
TL;DR: In this paper, the influence of the main geometric parameters of the antenna on the base frequency is investigated, including length and width of the radiator, depth of the rectangular cutouts on its radiator, thickness of the substrate, length of the ground and widths of the feedline, where the root-mean-square error and the relative error of these models are calculated.
Abstract: A symmetrical microstrip six-tooth-shaped antenna is considered. The influence of the main geometric parameters of the antenna on the base frequency is investigated. The main geometric parameters of the antenna include length and width of the radiator, depth of the rectangular cutouts on its radiator, thickness of the substrate, length of the ground and width of the feedline. Regression analysis is carried out and several mathematical models are constructed. The first model describes a relationship of the base frequency with depth of the rectangular cutouts, the radiator length and width. The second model describes a relationship between the wavelength at the base frequency and the geometry of the radiator. The root-mean-square error and the relative error of these models are calculated. For the base frequency and wavelength, graphs of dependencies on the geometric parameters of the antenna are plotted. We establish that a decrease in values of the base frequency and an increase in the wavelength is associated with an increase in the depth of cutouts and the radiator length. We show that a slight influence on the base frequency is caused by changes in width of the feedline, thickness of the substrate and length of the ground. The proposed formulas, describing relationships of the base frequency as well as the wavelength at this frequency with the geometric parameters of the antenna, can be used to design a six-tooth-shaped antenna in a wide frequency range.
Citations
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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: 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 from "On base frequency of the symmetrica..."

  • ...In the second problem, we maximize the bandwidth under the same restrictions (4): ( , , ) → max, (5) where ( , , ) is the regression model of the base frequency constructed in [23], ( , , ) is the regression model of the bandwidth constructed in [24], ( , , ) is regression model (1) for the reflection coefficient....

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References
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Journal ArticleDOI
TL;DR: In this paper, a novel printed monopole antenna with dual wideband is presented for simultaneously satisfying wireless local area network (WLAN) and worldwide interoperability for microwave access (WiMAX) applications.
Abstract: A novel printed monopole antenna with dual widebands is presented for simultaneously satisfying wireless local area network (WLAN) and worldwide interoperability for microwave access (WiMAX) applications. The antenna structure consists of a rectangular monopole with a microstrip feedline for excitation and a trapezoid conductor-backed plane for band broadening. The measured 10 dB bandwidth for return loss is from 2.01 to 4.27 GHz and 5.06 to 6.79 GHz, covering all the 2.4/5.2/5.8 GHz WLAN bands and 2.5/3.5/5.5 GHz WiMAX bands

289 citations


"On base frequency of the symmetrica..." refers background in this paper

  • ...By doing this, one can achieve a compact antenna size [3-5], tune or change the resonance frequencies [6-8], increase the bandwidth [9-11], etc....

    [...]

Journal ArticleDOI
TL;DR: In this article, a compact printed ultrawideband (UWB) monopole antenna with dual band-notched characteristics is presented, which has a small size of 20 × 18 mm2 and operates over the frequency band between 2.8 and 11.8 GHz for VSWR <; 2, with one notch frequency band at 3.3-3.6 GHz and another at 5.1-6 GHz for WLAN band.
Abstract: A compact printed ultrawideband (UWB) monopole antenna with dual band-notched characteristics is presented. By inserting two I-shaped notches in both sides of the microstrip feed line on the ground plane, additional resonances are excited, and hence the bandwidth is increased up to 123%. Two notched frequency bands are achieved by embedding a pair of Γ-shaped stubs in the radiation patch and a modified G-slot defected ground structure in the feeding line. The designed antenna has a small size of 20 × 18 mm2 and operates over the frequency band between 2.8 and 11.8 GHz for VSWR <; 2, with one notch frequency band at 3.3-3.8 GHz (WiMAX band) and the other at 5.1-6 GHz (WLAN band). The VSWR and radiation patterns of the fabricated antenna are presented, which prove that the designed antenna is a good candidate for various UWB applications.

165 citations

Journal ArticleDOI
TL;DR: This paper presents the design, testing, and analysis of a clover structured monopole antenna for super wideband applications, which is suitable for ultra wideband (UWB) outdoor propagation and experimentally validated for frequencies within and greater than UWB.
Abstract: This paper presents the design, testing, and analysis of a clover structured monopole antenna for super wideband applications. The proposed antenna has a wide impedance bandwidth (−10 dB bandwidth) from 1.9 GHz to frequency over 30 GHz. The clover shaped antenna with a compact size of 50 mm × 45 mm is designed and fabricated on an FR4 substrate with a thickness of 1.6 mm. Parametric study has been performed by varying the parameters of the clover to obtain an optimum wide band characteristics. Furthermore, the prototype introduces a method of achieving super wide bandwidth by deploying fusion of elliptical patch geometries (clover shaped) with a semi elliptical ground plane, loaded with a V-cut at the ground. The proposed antenna has a 14 dB bandwidth from 5.9 to 13.1 GHz, which is suitable for ultra wideband (UWB) outdoor propagation. The prototype is experimentally validated for frequencies within and greater than UWB. Transfer function, impulse response, and group delay has been plotted in order to address the time domain characteristics of the proposed antenna with fidelity factor values. The possible applications cover wireless local area network, C-band, Ku-band, K-band operations, Worldwide Interoperability for Microwave Access, and Wireless USB.

32 citations


"On base frequency of the symmetrica..." refers background in this paper

  • ...By doing this, one can achieve a compact antenna size [3-5], tune or change the resonance frequencies [6-8], increase the bandwidth [9-11], etc....

    [...]

01 Jun 2011
TL;DR: In this paper, a simple and compact microstrip-fed printed monopole antenna (PMA) for applications in wireless local area network (WLAN) and radio frequency identification (RFID) is presented.
Abstract: Design of a simple and compact microstrip-fed printed monopole antenna (PMA) for applications in wireless local area network (WLAN) and radio frequency identification (RFID) is presented. The dual-band operation is achieved from the 9-shaped folded antenna which is printed on a non-conductor backed dielectric. Measured percentage impedance bandwidth of the PMA at the center frequencies of 2.43 GHz and 5.24 GHz are 33.13 (2.14 GHz to 2.99 GHz) and 36.43 (4.40 GHz to 6.36 GHz) respectively. Consistent omnidirectional radiation patterns have been observed in both the frequency bands from the experimental results. The proposed antenna is simple in design and compact in size. It exhibits broadband impedance matching, consistent omnidirectional radiation patterns and appropriate gain characteristics (>2.5 dBi) in the RFID and WLAN frequency regions.

27 citations

Journal ArticleDOI
TL;DR: In this paper, a compact ultrawideband (UWB) microstrip-fed printed monopole antenna with dual band-notched characteristics is proposed, which consists of a radiating patch with semielliptical shape and the modified ground plane with two bevels on the upper edge of the ground plane to cause the wideband from 3.1 to 10.6 GHz for UWB application.
Abstract: In this article, a compact ultrawideband (UWB) microstrip-fed printed monopole antenna with dual band-notched characteristics is proposed. The proposed design consists of a radiating patch with semielliptical shape and the modified ground plane with two bevels on the upper edge of the ground plane to cause the wideband from 3.1 to 10.6 GHz for UWB application. In addition, cutting two semicircular slots on the bottom edge of the ground plane, operating band is further extended above 10.6 GHz. The band notch at the two bands 3.4–3.6 GHz and 5.6–5.8 GHz is achieved using a pair of concentric annular slots with splits in them in opposite side. Fine tuning is possible with adjusting the length and radius of those slots. The antenna size is 24 × 34.6 mm and designed using FR4 substrate having er = 4.4 and thickness of 0.8 mm. Design and optimizations have been carried out using HFSS v13.0 and there is good agreement with measured results. The proposed antenna exhibits a nearly omnidirectional radiation pattern in the H-plane, and a dipole-like radiation pattern in the E-plane for the entire pass band. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2595–2600, 2013

19 citations