scholarly journals Multiple Bandwidth Design of Micro strip Antenna for Future Wireless Communication

2019 ◽  
Vol 8 (2) ◽  
pp. 5135-5138 ◽  
Keyword(s):  
Wireless Communication ◽  
Frequency Band ◽  
Return Loss ◽  
Experimental Results ◽  
Proper Selection ◽  
Maximum Gain ◽  
Different Characteristics ◽  
Selection Of ◽  
Multi Band

We have presented a design of multi-band micro strip antenna which is suitable for operating at a higher frequency and with moderate bandwidth also. Proper selection of dimension, patch, and position of feed is taken into consideration to achieve the target properties of the antenna. Different characteristics of antenna like return loss, VSWR, gain, directivity, and efficiency are verified for different frequencies. The maximum gain of the antenna is found to be more than 3dB at different frequencies and also achieves multiple bandwidths in the direction of max radiation. The proposed structure of the antenna is fabricated, simulated, and tested for obtaining the preferred performance in terms of S11, VSWR, gain and efficiency. The experimental results are verified with simulated results which are in good in accord. Proposed antenna bandwidth is found to be 200MHz to 700 MHz with frequency band from 5.70 GHz to 12.60 GHz.

scholarly journals A Compact Novel Three-Port Integrated Wide and Narrow Band Antennas System for Cognitive Radio Applications

2016 ◽  
Vol 2016 ◽  
pp. 1-14 ◽  
Author(s):  
N. Anvesh Kumar ◽  
A. S. Gandhi
Keyword(s):  
Cognitive Radio ◽  
Wireless Communication ◽  
Frequency Spectrum ◽  
Spectrum Sensing ◽  
Frequency Band ◽  
Return Loss ◽  
Narrow Band ◽  
Experimental Results ◽  
Uwb Antenna ◽  
Good Agreement

The design of a three-port radiating structure, integrating wide and narrow band antennas for cognitive radio applications, is presented. It consists of a UWB antenna for spectrum sensing and two narrow band antennas for wireless communication integrated on the same substrate. The UWB antenna covers the complete UWB spectrum (3.1 GHz to 10.6 GHz) approved by FCC. In the two narrow band antennas, each antenna presents dual bands. In particular, the first narrowband antenna resonates at 6.5 GHz, covering the frequency band between 6.36 GHz and 6.63 GHz, and at 9 GHz, covering the frequency band between 8.78 GHz and 9.23 GHz, presenting minimum return loss values of 28.3 dB at 6.5 GHz and 20.5 dB at 9 GHz, respectively. Similarly, the second one resonates at 7.5 GHz, covering the frequency band between 7.33 GHz and 7.7 GHz, and at 9.5 GHz, covering the frequency band between 9.23 GHz and 9.82 GHz, presenting minimum return loss values of 19.6 dB at 7.5 GHz and 28.8 dB at 9.5 GHz, respectively. Isolation among the three antennas is less than −20 dB over the UWB frequency spectrum. These antennas are realized on a FR4 substrate of dimensions 30 mm × 30 mm × 1.6 mm. Experimental results show a good agreement between the simulated and measured results.

Comb Shaped Triple Band Microstrip Antenna for Wireless Communication

2021 ◽  
Vol 9 (4) ◽  
pp. 379-382
Keyword(s):  
Dielectric Constant ◽  
Wireless Communication ◽  
High Frequency ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Experimental Results ◽  
High Frequency Structure Simulator ◽  
Frequency Structure ◽  
Triple Band

A comb shaped microstrip antenna is designed by loading rectangular slots on the patch of the antenna. The antenna resonating at three different frequencies f1 = 5.35 GHz, f2 = 6.19 GHz and f3= 8.15 GHz. The designed antenna is simulated on High Frequency Structure Simulator software [HFSS] and the antenna is fabricated using substrate glass epoxy with dielectric constant 4.4 having dimension of 8x4x0.16 cms. The antenna shows good return loss, bandwidth and VSWR. Experimental results are observed using Vector Analyzer MS2037C/2.

Square microstrip multi band fractal antenna using EBG structure for wireless applications

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Suresh Akkole ◽  
Vasudevan N.
Keyword(s):  
Band Gap ◽  
Frequency Band ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Dielectric Materials ◽  
Fractal Antenna ◽  
Electromagnetic Band Gap ◽  
Content Type ◽  
New Type ◽  
Multi Band

Purpose Application of electromagnetic band gap (EBG) i.e. electromagnetic band gap technique and its use in the design of microstrip antenna and MIC i.e. microwave integrated circuits is becoming more attractive. This paper aims to propose a new type of EBG fractal square patch microstrip multi band fractal antenna structures that are designed and developed. Their performance parameters with and without EBG structures are investigated and minutely compared with respect to the resonance frequency, return loss, a gain of the antenna and voltage standing wave ratio. Design/methodology/approach The fractal antenna geometries are designed from the fundamental square patch and then EBG structures are introduced. The antenna geometry is optimized using IE3D simulation tool and fabricated on low cost glass epoxy FR4, with 1.6 mm height and dielectric materials constant of 4.4. The prototype is examined by means of the vector network analyzer and antenna patterns are tested on the anechoic chamber. Findings Combining the square fractal patch antenna with an application of EBG techniques, the gain of microstrip antenna has been risen up and attained good return loss as compared to the antennas without EBG structures. The designs exhibit multi-frequency band characteristics extending in between 1.70 and 7.40 GHz. Also, a decrease in antenna size of 34.84 and 59.02 per cent for the first and second iteration, respectively, is achieved for the antenna second and third without EBG. The experimental results agree with that of simulated values. The presented microstrip antenna finds uses in industrial, scientific and medical (ISM) band, Wi-Fi and C band. This antenna can also be used for satellite and radio detection and range devices for communication purposes. Originality/value A new type of EBG fractal square patch microstrip antenna structures are designed, developed and compared with and without EBG. Because of the application of EBG techniques, the gain of microstrip antenna has been risen up and attained good return loss as compared to the antennas without EBG structures. The designs exhibit multi-frequency band characteristics extending in between 1.70 and 7.40 GHz, which are useful for Wi-Fi, ISM and C band wireless communication.

Advanced Techniques for Measuring Structural Mobilities

1988 ◽  
Vol 110 (3) ◽  
pp. 345-349 ◽  
Author(s):  
J. A. Fabunmi ◽  
F. A. Tasker
Keyword(s):  
Frequency Response ◽  
General Equation ◽  
Theoretical Basis ◽  
Weighting Function ◽  
Experimental Results ◽  
Expected Improvement ◽  
Response Functions ◽  
Proper Selection ◽  
Special Cases ◽  
Selection Of

A unified formulation of the equations for estimating structural frequency response functions is presented. The more popular approaches are shown to be special cases of a general equation which involves a weighting function, the proper selection of which can yield substantial improvements in the accuracy and efficiency of the measurement process. The theoretical basis for selecting the weighting function is also presented, along with experimental results which confirm the expected improvement in accuracy of the advanced formulations over existing methods.

A Novel Design on Compact Slot Antenna with Multi-Band for WiMAX/WLAN Applications

2014 ◽  
Vol 644-650 ◽  
pp. 4455-4458 ◽  
Author(s):  
Li Zhu ◽  
Xiang Jun Gao ◽  
Long Zheng
Keyword(s):  
Relative Permittivity ◽  
Return Loss ◽  
Coplanar Waveguide ◽  
Experimental Results ◽  
Slot Antenna ◽  
Radiation Patterns ◽  
Triple Frequency ◽  
Novel Design ◽  
Multi Band

In this paper, a novel coplanar waveguide (CPW)-fed and miniaturized slot antenna for triple-frequency operation is proposed and investigated, which is printed on a small 20mm×20mm FR4 substrate with thickness of 1.0 mm and relative permittivity of 4.3. Through loading different slits, three perfect operating bands of 2.4GHz-2.45GHz, 3.25GHz-4.15GHz and 5.05GHz-6.25GHz are achieved respectively, when return loss is less than-10dB. Experimental results show that the antenna gives monopole-like radiation patterns and good antenna gains over the operating bands. Such antennas is suitable for WLAN 2.4/5.2/5.8 GHz and WiMAX 3.5/5.5 GHz applications.

Effects of Atmospheric Conditions on the Mechanical Properties of Tires

2012 ◽  
Vol 232 ◽  
pp. 14-18 ◽  
Author(s):  
Zbigniew Olszewski ◽  
Konrad J. Waluś
Keyword(s):  
Mechanical Properties ◽  
Measuring Equipment ◽  
Weather Conditions ◽  
Road Surface ◽  
Experimental Results ◽  
Atmospheric Conditions ◽  
Operational Parameters ◽  
Proper Selection ◽  
Safe Driving ◽  
Selection Of

Safe driving requires from the driver several visual-mental activities (perception, Proper selection of the tires depending on the season allows for optimizing the level of risk associated with driving in varying weather conditions. Properties tires used in the vehicle operational parameters show variability of depending on temperature, leading consequently to change the characteristics of the traction of the vehicle. Understanding the nature of these relationships is essential to determine the nature interaction. tires and road surface This paper presents experimental results hardness of tires under normal traffic using a mobile measuring equipment.

scholarly journals Design of a Compact Tuning Fork-Shaped Notched Ultrawideband Antenna for Wireless Communication Application

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
M. N. Shakib ◽  
M. Moghavvemi ◽  
W. N. L. Mahadi
Keyword(s):  
Wireless Communication ◽  
Frequency Band ◽  
Return Loss ◽  
Tuning Fork ◽  
Ground Plane ◽  
Uwb Antenna ◽  
Feed Line ◽  
Compact Size ◽  
Uwb Communication ◽  
Compact Planar

A new compact planar notched ultrawideband (UWB) antenna is designed for wireless communication application. The proposed antenna has a compact size of0.182λ × 0.228λ × 0.018λwhereλis the wavelength of the lowest operating frequency. The antenna is comprised of rectangular radiating patch, ground plane, and an arc-shaped strip in between radiating patch and feed line. By introducing a new Tuning Fork-shaped notch in the radiating plane, a stopband is obtained. The antenna is tested and measured. The measured result indicated that fabricated antenna has achieved a wide bandwidth of 4.33–13.8 GHz (at −10 dB return loss) with a rejection frequency band of 5.28–6.97 GHz (WiMAX, WLAN, and C-band). The effects of the parameters of the antenna are discussed. The experiment results demonstrate that the proposed antenna can well meet the requirement for the UWB communication in spite of its compactness and small size.

Design and Implementation of 32-Bit High Valency Jackson Adders

2017 ◽  
Vol 26 (07) ◽  
pp. 1750123 ◽  
Author(s):  
N. Poornima ◽  
V. S. Kanchana Bhaaskaran
Keyword(s):  
Efficient Solution ◽  
Experimental Results ◽  
Performance Parameters ◽  
Proper Selection ◽  
Word Size ◽  
Design And Implementation ◽  
Recurrence Equations ◽  
Parallel Prefix ◽  
Design Requirements ◽  
Selection Of

Parallel prefix addition offers a highly efficient solution to most of the applications which requires fast addition of two binary numbers. An efficient adder design demands proper selection of recurrence equations and its realization. There are different recursion equations like Weinberger recursion, Ling recursion, Jackson recursion, to name a few, available to suit a variety of design requirements. In this work, we have proposed adders based on Jackson recursion. In these adders, the complexity found in generate term is reduced at all the levels of the carry graph to optimize the adder performance parameters. The proposed adder structures are implemented for a word size of 32-bit based on the Jackson recursion equations for valency-4 and valency-5. The synthesis results reveal that the high-valency Jackson adder structures are superior in terms of power and area over the Ling adders for comparable delay values. Experimental results obtained reveals that an average of [Formula: see text] and [Formula: see text] savings in area and power, respectively, are achieved by the proposed adders, as compared to Ling adders for the same word size. Furthermore, the proposed adders demonstrate enhanced area-delay and the power-delay values compared to the adders based on the Weinberger’s recursion.

Design of a Ring Monopole Dual-Frequency Antenna Fed by Coplanar Waveguide

2012 ◽  
Vol 241-244 ◽  
pp. 2555-2558
Author(s):  
Qi Wang
Keyword(s):  
Wireless Communication ◽  
Frequency Band ◽  
Communication System ◽  
Coplanar Waveguide ◽  
Monopole Antenna ◽  
Experimental Results ◽  
Antenna Design ◽  
Dual Band ◽  
Dual Frequency ◽  
Antenna Structure

A printed ring-shaped monopole antenna fed by coplanar waveguide for use in the dual-band wireless communication system has been presented and investigated. By adding some branch strips inside the ring and changing its size, as well as the further optimization, the proposed antenna could work effectively within the scope of 2.4-2.484GHz and 5.15-5.825GHz frequency band. Practical antenna structure is fabricated. The details of the antenna design and both the theoretical and experimental results are discussed.

scholarly journals Inset Fed Horizontal Wide U-Shaped Slotted Microstrip Antenna for Multi-band Operation

2019 ◽  
Vol 8 (3) ◽  
pp. 6155-6159
Keyword(s):  
Wireless Communication ◽  
Patch Antenna ◽  
High Frequency ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Antenna Design ◽  
Band Width ◽  
High Frequency Structure Simulator ◽  
X Band ◽  
Multi Band

A multi-band horizontal wide U-slotted patch antenna is proposed for wireless communication. Along with the horizontal wide U-slot, the proposed antenna also consists of four truncated corners along with inset feeding for proper antenna matching. The proposed antenna design has three distinct simulated resonating frequencies i.e., 4.7 GHz, 6.8 GHz and 9.8 GHz having -10 dB return loss band width as 111.1 MHz, 245.1 MHz, 998.6 MHz respectively while measured resonating frequencies are observed as 4.75 GHz, 7.1 GHz and 10.2 GHz having -10 dB return loss band width as 539.1 MHz , 410.6 MHz , 2.0834 GHz respectively . The proposed antenna results are examined using High frequency structure simulator tool and then verified through measured results . Thus, the proposed antenna is applicable for frequency bands like S band, C band and X band .

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