A Compact CPW-Fed Curved Meander Line Monopole Antenna (MLMA) for GSM Application

2017 ◽  
Vol 6 (1) ◽  
pp. 207
Author(s):  
Nor Afifah Borhan ◽  
Noor Asniza Murad
Keyword(s):  
Communication Systems ◽  
Return Loss ◽  
Low Cost ◽  
Low Frequency ◽  
Monopole Antenna ◽  
Conventional Design ◽  
Meander Line ◽  
Made In

<p>Monopole antenna is widely used in many communication systems especially in broadcasting where omnidirectional pattern allow the 360-degree coverage. However, at low frequency the conventional design may require miniaturization to fit in versatile spaces. Thus, this paper discusses a low cost, compact CPW-fed curved meander line monopole antenna (MLMA) designed to operate at 0.9 GHz GSM band. The overall dimension is 25mm x 80mm. The antenna is well matched at required GSM band with the bandwidth from 0.88 GHz to 0.93 GHz. Comparison between the conventional MLMA and curved (MLMA) is made in term of return loss and gain. It was found that the curved MLMA has a better gain compared to the conventional MLMA which is 1.472 dB.</p>

A Miniaturized 878 MHz Slotted Meander Line Monopole Antenna

2017 ◽  
Vol 7 (1) ◽  
pp. 170
Author(s):  
Nabilah Ripin ◽  
Ahmad Asari Sulaiman ◽  
Nur Emileen Abd Rashid ◽  
Mohamad Fahmi Hussin ◽  
Nor Najwa Ismail
Keyword(s):  
Simple Structure ◽  
Low Cost ◽  
Low Frequency ◽  
Monopole Antenna ◽  
Impedance Bandwidth ◽  
Antenna Size ◽  
Printed Monopole Antenna ◽  
Printed Monopole ◽  
Small Antenna ◽  
Meander Line

<p>A slotted meander line printed monopole antenna for low frequency applications at 878 MHz is presented. The operating frequency of the conventional printed monopole antenna was greatly reduced by the presence of the slots and meander line which lead to the reduction of the antenna size. The size reduction up to 70% compared to the conventional reference antenna is achieved in this study. The antenna has a simple structure and small antenna size of 46.8 mm x 74 mm or 0.137𝝀<sub>0</sub> x 0.217𝝀<sub>0</sub>. The antenna has been fabricated on the low-cost FR4 substrate and measured to validate the simulation performances. Measured results display that the proposed antenna produces omnidirectional radiation pattern of impedance bandwidth of 48.83 MHz and the maximum gain of -1.18 dBi.</p>

scholarly journals A Novel UWB TEM Horn Antenna with a Microstrip-Type Feed

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Youcheng Wang ◽  
Guangyou Fang ◽  
Hai Su ◽  
Yicai Ji ◽  
Shengbo Ye ◽  
...  
Keyword(s):  
Communication Systems ◽  
Return Loss ◽  
Low Frequency ◽  
Horn Antenna ◽  
Ultra Wideband ◽  
Buried Objects ◽  
Type Transition ◽  
Compact Size ◽  
Feeding Structure ◽  
Tem Horn

A novel ultra-wideband (UWB) TEM horn antenna fed by a microstrip-type transition is designed. The feeding structure is directly realized by a microstrip line with the merit of compact size and UWB. To broaden the low frequency band, an arc surface is added at the end of the flare plates. Numerical simulation is applied to discuss the effect of the geometry construction which contains the microstrip-type transition and the circular arc surface at the end of radiating arm. Return loss, radiation pattern, and gain of the fabricated antennas are measured. The measured results show that the antenna yields a wide bandwidth ranging from 1 GHZ to 10.3 GHz with return loss less than −10 dB. The antenna also achieves unidirectional radiation patterns with stable antenna gain. These characteristics imply that the compact antenna may be used for detecting buried objects in the wall or UWB communication systems of band like GSM, Wi-Fi, and so forth.

Low Cost Meander Line Chip Monopole Antenna

2014 ◽  
Vol 62 (1) ◽  
pp. 442-445 ◽  
Author(s):  
Mike W. K. Lee ◽  
K. W. Leung ◽  
Y. L. Chow
Keyword(s):  
Low Cost ◽  
Monopole Antenna ◽  
Meander Line

Multi-Mode Narrow-Frame Antenna for 4G/5G Metal-Rimmed Mobile Phones

2020 ◽  
Vol 35 (8) ◽  
pp. 908-915
Author(s):  
Ming Yang ◽  
Yu-Fa Sun ◽  
Tong-Qing Liao
Keyword(s):  
Theoretical Analysis ◽  
Mobile Phones ◽  
Communication Systems ◽  
Return Loss ◽  
Band 3 ◽  
Monopole Antenna ◽  
Experimental Results ◽  
5G Communication ◽  
Multi Mode

A novel multi-mode narrow-frame antenna is presented for 4G/5G metal-rimmed mobile phones in this paper. The proposed antenna is constituted by a monopole antenna and a coupling strip, which is printed on FR4 substrate with thickness of 0.8 mm. The overall area occupied by the antenna is only 60 × 10.4 mm2, which can be used as a promising narrow-frame antenna. The simulated results shows that the return loss of the antenna can provide four operating bandwidths of 822– 961 (band 1), 1697–3075 (band 2), 3280–3835 (band 3) and 4475–5050 MHz (band 4), which respectively cover 824–960, 1710–2690, 3300–3600 and 4800–5000 MHz in 4G/5G communication systems. In order to verify the accuracy of theoretical analysis and simulated results, the proposed antenna is fabricated and measured. The experimental results are basically consistent with the simulated results, suggesting that the presented antenna has attractive performance for mobile phones.

A Design of Ultrawide Band Planar Monopole Antenna Based on Microstrip Pentagonal Patch

2010 ◽  
Vol 108-111 ◽  
pp. 915-920
Author(s):  
Ming Hua Gao
Keyword(s):  
Reflection Loss ◽  
Communication Systems ◽  
Microstrip Line ◽  
Return Loss ◽  
Wide Band ◽  
Monopole Antenna ◽  
Ultra Wide Band ◽  
Ansoft Hfss ◽  
Radiation Unit ◽  
Planar Monopole Antenna

An ultra-wide band planar monopole antenna is presented in this paper. This antenna uses a pentagonal patch as radiation unit and is fed by a microstrip line. The relevant simulation is performed by using Ansoft HFSS. The return loss curve and the radiation patterns of this new antenna are given. And the effect of the size of the various parts of the antenna on the reflection loss is analyzed. Experimental results show that the proposed antenna provides an ultra-wide bandwidth (1.70~12.90 GHz) for return loss less than -10dB (VSWR<2). It is suitable for current ultra-wide band communication systems.

scholarly journals UWB-Printed Rectangular-Based Monopole Antenna for Biological Tissue Analysis

Electronics ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 304
Author(s):  
Andrea Martínez-Lozano ◽  
Carolina Blanco-Angulo ◽  
Héctor García-Martínez ◽  
Roberto Gutiérrez-Mazón ◽  
Germán Torregrosa-Penalva ◽  
...  
Keyword(s):  
Medical Imaging ◽  
Biological Tissue ◽  
Low Cost ◽  
Microwave Frequency ◽  
Monopole Antenna ◽  
Tissue Analysis ◽  
The Finite Element Method ◽  
Frequency Range ◽  
Step Type ◽  
Made In

This paper presents the design of a printed step-type monopole antenna for biological tissue analysis and medical imaging applications in the microwave frequency range. The design starts from a very simple and widely known rectangular monopole antenna, and different modifications to the antenna geometry are made in order to increase the bandwidth. The antenna dimensions are optimized by means of a parametric analysis of each dimension using a 3-D electromagnetic simulator based on the finite element method. The optimized antenna, with final dimensions of 40 × 36 mm2, is manufactured onto a low-cost FR4 (fiber glass epoxy) substrate. The characteristics of the antenna have been measured inside an anechoic chamber, obtaining an omnidirectional radiation pattern and a working frequency range between 2.7 GHz and 11.4 GHz, which covers the UWB frequencies and enables the use of the antenna in medical imaging applications. Finally, the behaviour of four of these antennas located around a realistic breast model, made with biocompatible materials, has been analysed with the electromagnetic simulator, obtaining good results and demonstrating the usefulness of the designed antenna in the proposed application.

scholarly journals Efficiency in Bandwidth by using Meander Line Antennas Simulation

2019 ◽  
Vol 9 (2) ◽  
pp. 3801-3804
Keyword(s):  
Low Cost ◽  
Ground Plane ◽  
Low Frequency ◽  
Substrate Material ◽  
Fabrication Technology ◽  
Double Structure ◽  
Simulation Performance ◽  
Monopole Antennas ◽  
Different Types ◽  
Meander Line

In communication technology antennas plays a major role and now a days it has tremendous demand we do have different types of antennas for efficient transmissions discuss about a monopole antenna which is printed of meander line that is used for very low frequency operations of about 900 MHz With partially defected ground plane is backed with E-shaped meander line antennas of double structure is obtained by numerous slots evaluation which is the novelty of this design. By using this monopole antennas fabrication we can reduce the size of antenna and can have less operating frequency which is drastically reduced by these slots and meander lines. By this proposed design we can achieve 70% of reduction in size of antenna as conventional antennas compared. The size is of 42.2mm× 70 mm or 0.12λ0 × 0.2λ0 is obtained to antenna which is very reduced by this model. For having simulation performance valid we use FR4 substrate material for fabrication of antenna and is low cost. After simulation we can observe that the radiation pattern for this antenna is omni-directional measured with bandwidth impedance of 40 MHz with the -1dB gain which is maximum. We use CST Tool for simulation and fabrication technology is as simple even with this FR4 material.

scholarly journals Use of PVDF Wire Sensors for Leakage Localization in a Fluid-Filled Pipe

Sensors ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 692 ◽  
Author(s):  
Pingling Sun ◽  
Yan Gao ◽  
Boao Jin ◽  
Michael J. Brennan
Keyword(s):  
Polyvinylidene Fluoride ◽  
Low Cost ◽  
Low Frequency ◽  
Correlation Method ◽  
Leak Detection ◽  
Time Delay Estimation ◽  
Experimental Investigations ◽  
Potential Improvement ◽  
Academy Of Sciences ◽  
Made In

The detection and location of pipeline leakage can be deduced from the time difference between the arrival leak signals measured by sensors placed at the pipe access points on either side of a suspected leak. Progress has been made in this area to offer a potential improvement over the conventional cross-correlation method for time delay estimation. This paper is concerned with identifying suitable sensors that can be easily deployed to monitor the pipe vibration due to the propagation of leak noise along the pipeline. In response to this, based on the low-frequency propagation characteristics of leak noise in our previous study, polyvinylidene fluoride (PVDF) wire sensors are proposed as a potential solution to detect the pipeline leak signals. Experimental investigations were carried out at a leak detection pipe rig built in the Chinese Academy of Sciences. Their performances for leak detection were shown in comparison with hydrophones. It is suggested that with special considerations given to aspects pertaining to non-intrusive deployment and low cost, the PVDF wire sensors are of particular interest and may lead to a promising replacement for commercial leak noise transducers.

scholarly journals A Simple Monopole Antenna with a Switchable Beam for 5G Millimeter-Wave Communication Systems

Electronics ◽  
2021 ◽  
Vol 10 (22) ◽  
pp. 2870
Author(s):  
Hijab Zahra ◽  
Musa Hussain ◽  
Syeda Iffat Naqvi ◽  
Syed Muzahir Abbas ◽  
Subhas Mukhopadhyay
Keyword(s):  
Millimeter Wave ◽  
Communication Systems ◽  
Return Loss ◽  
Low Cost ◽  
Ground Plane ◽  
Pin Diodes ◽  
Design Evolution ◽  
Compact Antenna ◽  
Beam Switching ◽  
Millimeter Wave Communication

A simple and compact antenna with a switchable beam for millimeter-wave communication is proposed in this paper. The antenna has a planar structure, and the design evolution is discussed. The beam switching functionality was achieved by incorporating two PIN diodes in the ground plane of the antenna. By switching ON either of the PIN diodes, the inverted L-shaped stub becomes connected to the ground plane and behaves as a cavity, which causes the dispersion of the radiation pattern. Therefore, a wide-angle (±18∘) beam-switching property can be achieved using a simple and low-cost technique, without the necessity to implement additional conventional circuits. The proposed antenna is characterized by a good performance in terms of return loss, bandwidth, measured gain up to 7.95 dB, and radiation efficiency up to 84%, making it a proper candidate for IoT technology and millimeter-wave 5G devices.

scholarly journals Topology Optimization of Dual Octagonal Array antenna for low frequency applications

2018 ◽  
Vol 7 (2.17) ◽  
pp. 13
Author(s):  
P Venu Madhav ◽  
Dr M SivaGanga Prasad
Keyword(s):  
Integrated Circuit ◽  
Communication Systems ◽  
Low Cost ◽  
Low Frequency ◽  
Patch Antennas ◽  
Modeling Tools ◽  
The Face ◽  
Increasing Demand ◽  
Industrial Needs ◽  
Matching Techniques

Objectives: Efficient antenna design for use in communication systems is altering the face of the antenna modeling. The ever-increasing demand for portable and efficient antennas is making researchers to develop innovative models [1] using advanced antenna modeling tools that comply with industrial needs and standards.  Methods/Statistical Analysis: Antennas with lower operating frequencies have the major constraints on its size, efficiency and gain. Study on matching techniques, feeding techniques was also to be considered.Findings: Micro strip patch antennas offers considerable amount of radiation, low cost when fabricated on FR4, light weight and are conformable to suite any application. This paper projects the design, simulation and testing of a dual octagonal patch, the topology algorithm [3] is used to optimize the size and shape of the patch where octagons are spaced in the form of an array to address optimization on size and fits into wireless applications. Application/Improvements: The proposed model is tested in the standard antenna test bench comprising of microwave integrated circuit analyzer receiver MIC10kit and found to operate at a resonant frequency of 1.8 GHz with good radiation characteristics.  

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