Multi-Edged Wide-Band Rectangular Microstrip Fractal Antenna Array for C- and X-Band Wireless Applications

2016 ◽  
Vol 26 (04) ◽  
pp. 1750068 ◽  
Author(s):  
Jaspal Singh Khinda ◽  
Malay Ranjan Tripathy ◽  
Deepak Gambhir
Keyword(s):  
Return Loss ◽  
Low Cost ◽  
Ground Plane ◽  
Wide Band ◽  
Impedance Bandwidth ◽  
Network Analyzer ◽  
Fractal Antenna ◽  
Wireless Applications ◽  
X Band ◽  
Wide Range

A low-cost multi-edged rectangular microstrip fractal antenna (RMFA) yielding a huge bandwidth of 8.62[Formula: see text]GHz has been proposed in this paper. The proposed fractal antenna design constitutes a radiation patch, fed with 50[Formula: see text][Formula: see text] microstrip line and a partial ground plane. The partial ground plane is the combination of shapes of rectangle and three-point arc. The proposed antenna is simulated as well as fabricated. The simulated results using electromagnetic solver software and measured with vector network analyzer bench MS46322A are presented and compared. The various parameters such as return loss, voltage standing wave ratio (VSWR), antenna impedance, gain, directivity, group delay and phase of [Formula: see text], radiation efficiency and patterns are presented here. The depth of return loss is improved for a wide range of frequencies. The proposed fractal antenna is further extended to linear array to improve the gain and impedance bandwidth. The simulated and measured results prove the superiority of the proposed antenna.

scholarly journals A CPW - Fed Octagonal Ring Shaped Wide Band Antenna for Wireless Applications

2018 ◽  
Vol 7 (3) ◽  
pp. 87-92 ◽  
Author(s):  
P. Khanna ◽  
A. Sharma ◽  
A. K. Singh ◽  
A. Kumar
Keyword(s):  
Microstrip Antenna ◽  
Return Loss ◽  
Ground Plane ◽  
Wide Band ◽  
Impedance Bandwidth ◽  
Wireless Applications ◽  
High Frequency Structure Simulator ◽  
High Impedance ◽  
Ring Antenna ◽  
Operating Bandwidth

A CPW – Fed octagonal ring shaped antenna for wideband operation is presented. The radiating patch of proposed octagonal ring antenna consists of symmetrical slot in place of conventional annular ring microstrip antenna. The ground plane consists of two rectangular slots, while the radiator and the ground plane are on same plane that utilizes the space available around the radiator. The proposed antenna is simulated through Ansoft’s High Frequency Structure Simulator (HFSS). Measured result shows balanced agreement with the simulated results. The prototype is taken with dimensions 47 mm × 47 mm × 1.6 mm that achieves good return loss, constant group delay and good radiation patterns over the entire operating bandwidth of 2.0 to 9.5 GHz (7.5 GHz). The proposed antenna achieves high impedance bandwidth of 130%. Thus, the proposed antenna is applicable for S and C band applications.

scholarly journals Design of SWB Antenna with Triple Band Notch Characteristics for Multipurpose Wireless Applications

2021 ◽  
Vol 11 (2) ◽  
pp. 711
Author(s):  
Warsha Balani ◽  
Mrinal Sarvagya ◽  
Tanweer Ali ◽  
Ajit Samasgikar ◽  
Saumya Das ◽  
...  
Keyword(s):  
Group Delay ◽  
Wide Band ◽  
Impedance Bandwidth ◽  
Pass Band ◽  
Wireless Applications ◽  
Notch Band ◽  
Pulse Transmission ◽  
X Band ◽  
Wide Range ◽  
Domain Performance

A compact concentric structured monopole antenna for super wide band (SWB) applications with triple notch band characteristics is designed and experimentally validated. The antenna covers an immense impedance bandwidth (1.6–47.5 GHz) with sharp triple notch bands at 1.8–2.2 GHz, 4–7.2 GHz, and 9.8–10.4 GHz to eliminate interference from co-existing advanced wireless services (AWS), C bands, and X bands, respectively. By loading an E-shaped stub connected at the top of the patch and by etching a split elliptical slot at the lower end of the radiating patch, the band rejection characteristics from 1.8–2.2 GHz for the AWS and 4–7.2 GHz for the C band are achieved, respectively. Further, by making use of a C-shaped resonator near the feed line, band rejection from 9.8–10.4 GHz for the X band is obtained. By varying the parameters of the antenna, the notch bands are controlled independently over a wide range of frequencies. The antenna provides good radiation characteristics, constant group delay response, and better gain over the pass band. The experimental results indicate that the designed antenna offers a remarkable reduction in gain and high variation in group delay over the stop bands. To characterize the wideband property and linear phase response of the designed antenna, its time-domain performance is extensively described and evaluated, which assure pulse transmission with minimum distortion.

scholarly journals Bandwidth Enhanced Multislot Rectangular Patch Antenna for UWB and X Band Wireless Applications

2019 ◽  
Vol 8 (4) ◽  
pp. 132-137
Keyword(s):  
Patch Antenna ◽  
High Frequency ◽  
Return Loss ◽  
Ground Plane ◽  
Wide Band ◽  
Cost Effective ◽  
Wireless Applications ◽  
Rectangular Patch ◽  
X Band ◽  
Made In

The main aim of this work is to design a compact Rectangular shaped Multislot patch antenna for Ultra Wide Band (UWB) and X band applications. The proposed antenna has a condensed size of 35*30*1.6mm3 . The antenna consists of a rectangular patch with microstrip line feed etched on FR4-epoxy substrate with dielectric constant of 4.4. To improve the bandwidth, circular slots are made in patch and the ground plane. The proposed antenna achieves wide bandwidth of 12.7GHz (3.3-16 GHz) having four resonance frequency with good return loss and maximum gain of 9.64dBi. The antenna is designed, simulated and analyzed by using HFSS (High Frequency Structural Simulator). The charisma of this design is that it employs single patch that makes it easy to fabricate and cost-effective as well.

Improvement in Depth of Return Loss of Microstrip Antenna for S-Band Applications

2017 ◽  
Vol 27 (04) ◽  
pp. 1850058 ◽  
Author(s):  
Jaspal Singh Khinda ◽  
Malay Ranjan Tripathy ◽  
Deepak Gambhir
Keyword(s):  
Microstrip Antenna ◽  
Return Loss ◽  
Ground Plane ◽  
Impedance Bandwidth ◽  
Network Analyzer ◽  
Fractal Antenna ◽  
Line Position ◽  
Mismatch Loss ◽  
Loss Formula ◽  
Good Agreement

For S-band applications, a microstrip fractal antenna is designed by extending narrow impedance bandwidth into wide impedance bandwidth with use of partial ground plane. In the designed fractal antenna, the six elliptical slots in ground plane and two elliptical slots in radiating patch are embedded to improve the depth of return loss. Further, the parametric study is performed on width of microstrip feeding line, position/size of ellipses in radiating patch and ground plane to achieve mismatch loss [Formula: see text] 0.044[Formula: see text]dB and power delivered to antenna 99%, i.e., return loss [Formula: see text][Formula: see text]dB for S-band. The simulated antenna results are obtained using electromagnetic solver software and fabricated antenna results are measured using Vector Network Analyzer Bench MS46322A and they are found to be in good agreement.

scholarly journals Band notched self complementaryultra wideband antenna for wireless applications

2018 ◽  
Vol 7 (2.8) ◽  
pp. 529 ◽  
Author(s):  
Ch Ramakrishna ◽  
G A.E.Satish Kumar ◽  
P Chandra Sekhar Reddy
Keyword(s):  
High Frequency ◽  
Return Loss ◽  
Wide Band ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Relative Dielectric Permittivity ◽  
Frequency Range ◽  
Ground Structure ◽  
Wireless Applications ◽  
Patch Edge

This paper presents a band notched WLAN self complementaryultra wide band antenna for wireless applications. The proposed antenna encounters a return loss (RL) less than -10dB for entire ultra wideband frequency range except band notched frequency. This paper proposes a hexagon shape patch, edge feeding, self complementary technique and defective ground structure. The antenna has an overall dimensionof 28.3mm × 40mm × 2mm, builton  substrate FR4 with a relative dielectric permittivity 4.4. And framework is simulated finite element method with help of high frequency structured simulator HFSSv17.2.the proposed antenna achieves a impedance bandwidth of 8.6GHz,  band rejected WLAN frequency range 5.6-6.5 GHz with  vswr is less than 2.

CPW-Fed Wide Band Micro-machined Fractal Antenna with Band-notched Function

2020 ◽  
Vol 35 (8) ◽  
pp. 929-935
Author(s):  
Ashwini Kumar ◽  
Amar Pharwaha
Keyword(s):  
Integrated Circuits ◽  
Low Cost ◽  
Wide Band ◽  
Impedance Bandwidth ◽  
Fractal Antenna ◽  
Sierpinski Carpet ◽  
Antenna Structure ◽  
High Frequency Structure Simulator ◽  
Novel Structure ◽  
Sierpiński Carpet

In this paper, a straightforward yet effective design methodology to design wideband antenna with band notched characteristics has been proposed. Sierpinski carpet fractal geometry has been used to realize the antenna structure. Co-planar waveguide feed is used with a novel structure to achieve larger impedance bandwidth and band notching characteristics. Proposed antenna is designed using High Frequency Structure Simulator (HFSS) on a low cost FR4 substrate (ɛr=4.4) which resonates at three frequencies 1.51 GHz (1.19-2.06GHz), 6.53 GHz and 8.99 GHz (4.44-9.54 GHz) while a band is notched at 10.46 GHz (9.32-11.92 GHz). The proposed antenna has an electrical dimension of 0.36 λm× 0.24 λm, here λm is the wavelength with respect to lowest resonating frequency of the antenna. The resonating and radiation characteristics of the antenna are verified experimentally. Further, investigations are made to achieve easy integration of the antenna to the monolithic microwave integrated circuits. For that the antenna has been designed on micro-machined high index Silicon substrate which improve matching and gain of the antenna. The results of the micro-machined Sierpinski carpet fractal antenna are highly convincing over the conventional FR4 based antenna.

scholarly journals Bandwidth Enhancement of a Bell-shaped UWB Antenna for Indoor Localization Systems

2021 ◽  
Vol 11 (1) ◽  
pp. 6691-6695
Author(s):  
M. S. Karoui ◽  
N. Ghariani ◽  
M. Lahiani ◽  
H. Ghariani
Keyword(s):  
Indoor Localization ◽  
Low Cost ◽  
Ground Plane ◽  
Wide Band ◽  
Impedance Bandwidth ◽  
Uwb Antenna ◽  
Simple Method ◽  
Bandwidth Enhancement ◽  
Measured Impedance ◽  
Localization Systems

In this paper, a simple method of enhancing the bandwidth of the Bell-shaped UWB Antenna for indoor localization systems is proposed. Therefore, a modified version of the bell-shaped Ultra-Wide Band (UWB) antenna for indoor localization systems is presented. The proposed antenna is printed on a low-cost FR-4 substrate of 21×27×1.6mm3 size. It is composed of a bell-shaped radiating patch and a multi-slotted ground plane. The measured results show that the proposed antenna has an impedance bandwidth of about 11.2GHz ranging from 3.16GHz to 14.36GHz at S11<−10dB. Compared to the original version, an enhancement of about 5.56GHz in the measured impedance bandwidth was observed.

scholarly journals Miniaturized Wideband Microstrip Antenna for Recent Wireless Applications

2018 ◽  
Vol 7 (5) ◽  
pp. 7-13 ◽  
Author(s):  
S. A. Shandal ◽  
Y. S. Mezaal ◽  
M. F. Mosleh ◽  
M. A. Kadim
Keyword(s):  
Microstrip Antenna ◽  
Return Loss ◽  
Ground Plane ◽  
Wide Frequency Range ◽  
Impedance Bandwidth ◽  
Wireless Devices ◽  
Microstrip Resonator ◽  
Resonant Frequencies ◽  
Compact Antenna ◽  
Wireless Applications

In this paper, a pentagon slot inside fractal circular patch microstrip resonator to design compact antenna over partial ground plane is introduced using 3rd iteration of adopted fractal geometry. This antenna is modeled on FR4 substrate with a size of (20 x 18) mm2, thickness of 1.5mm, permittivity of 4.3 and loss tangent of 0.02. The used type of feeding is microstrip line feed. It is designed to operate at wide frequency range of (4.5-9.3) GHz at resonant frequencies of 5.7GHz and 7.9GHz with impedance bandwidth of 4.8 GHz. Both lengths of ground plane Lg and width of feed line Wf are optimized in order to acquire optimum bandwidth. The simulated return loss values are -33 and -41 dB at two resonant frequencies of 5.7 and 7.9 GHz with gain of 3.2 dB. The simulated results offered noteworthy compatibility with measured results. Also, the proposed wideband microstrip antenna has substantial compactness that can be integrated within numerous wireless devices and systems.

scholarly journals Design of Transparent Antenna for 5G Wireless Applications

Proceedings ◽  
2020 ◽  
Vol 63 (1) ◽  
pp. 54
Author(s):  
Sanae Azizi ◽  
Laurent Canale ◽  
Saida Ahyoud ◽  
Georges Zissis ◽  
Adel Asselman
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Ground Plane ◽  
Antenna Design ◽  
Impedance Bandwidth ◽  
Light Weight ◽  
Frequency Bandwidth ◽  
Frequency Range ◽  
Wireless Applications ◽  
Compact Size

This paper presents the design of a compact size band patch antenna for 5G wireless communications. This wideband antenna was designed on a glass substrate (12 × 11 × 2 mm3) and is optically transparent and compact. It consists of a radiation patch and a ground plane using AgHT-8 material. The antenna design comprises rectangular shaped branches optimized to attain the wideband characteristics. The calculated impedance bandwidth is 7.7% covering the frequency range of 25 to 27 GHz. A prototype of the antenna and various parameters such as return loss plot, gain plot, radiation pattern plot, and voltage standing wave ratio (VSWR) are presented and discussed. The simulated results of this antenna show that it is well suited for future 5G applications because of its transparency, flexibility, light weight, and wide achievable frequency bandwidth near the millimeter wave frequency band.

scholarly journals New Compact Wideband Microstrip Antenna for Wireless Applications

2018 ◽  
Vol 7 (4) ◽  
pp. 85-92 ◽  
Author(s):  
S. Shandal ◽  
Y. S. Mezaal ◽  
M. Kadim ◽  
M. Mosleh
Keyword(s):  
Microstrip Antenna ◽  
Return Loss ◽  
Ground Plane ◽  
Computer Applications ◽  
Impedance Bandwidth ◽  
Substrate Thickness ◽  
Resonant Frequencies ◽  
Wireless Applications ◽  
Rectangular Patch ◽  
Rectangular Microstrip Antenna

In this paper, a miniature rectangular microstrip antenna over partial ground plane is presented by utilizing a space-filling property of fractal geometry in this design. It is simulated by High Frequency Software Simulator (HFSS) software, fabricated and tested by Vector Network Analyzer (VNA).Two types of slots are introduced in order to enhance antenna parameters such as bandwidth and return loss S1.1. This antenna is fabricated on FR4 substrate with a small size of (18 x 16 x 1.5) mm3, 1.5mm substrate thickness, 4.3 permittivity and 0.02 loss tangent. To feed this antenna,  microstrip line feed is used. This antenna is implemented for wide bandwidth (4.8-11.6) GHz, and has three resonant frequencies at 5.5GHz, 8.3GHz and 10.7GHz with impedance bandwidth of 6.8GHz. The gap value g between partial ground plane and rectangular patch at top layer is optimized in order to achieve optimal simulated return loss S1.1 is (-46,-32,-14) dB at three resonant frequencies (5.5, 8.3, 10.7) GHz and optimal radiation efficiency of 93.42% with gain of 3.63dB. The simulated results have tolerable agreement with measured results. This antenna is suitable for wireless computer applications within  C and X band  communications.

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