scholarly journals Enhanced Dipole Antenna for RFID by Using Metamaterials

2021 ◽  
Vol 8 (2) ◽  
pp. 47-50
Author(s):  
Nail Alaoui ◽  
Aicha Djalab ◽  
Lakhdar Bouhamla ◽  
Abdellah Azouze ◽  
Rania Ibtissam Benmelouka ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Resonant Frequency ◽  
Radiation Pattern ◽  
Return Loss ◽  
Dipole Antenna ◽  
Frequency Characteristics ◽  
Antenna Design ◽  
Antenna Size ◽  
Novel Method ◽  
Simulation Results

The paper at hand discusses a novel method of miniaturization of antenna design using metamaterials. We suggest a novel method to improve frequency characteristics while reducing antenna size. This method is based on the connection of this element resonant two split rings resonator. The resonant frequency, return loss, bandwidth, radiation pattern, gain, directivity, electromagnetic field, and current supplied by the proposed antenna are the parameters addressed in this study. CST software generates all simulation results.

scholarly journals Rancang Bangun Antena Mikrostrip Bowtie Pada Frekuensi 5,2 Ghz

2018 ◽  
Vol 10 (2) ◽  
pp. 15-21
Author(s):  
Aprinal Adila Asril ◽  
Lifwarda Lifwarda ◽  
Yul Antonisfia
Keyword(s):  
Dielectric Constant ◽  
Resonant Frequency ◽  
Resonance Frequency ◽  
Radiation Pattern ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Microstrip Antennas ◽  
Antenna Design ◽  
Narrow Bandwidth ◽  
Simple Materials

Microstrip antennas are very concerned shapes and sizes. Can be viewed in terms of simple materials, shapes, sizes and dimensions smaller antennae, the price of production is cheaper and able to provide a reasonably good performance, in addition to having many advantages, the microstrip antenna also has its drawbacks one of which is a narrow bandwidth. In this research will be designed a microstrip antenna bowtie which works at a frequency of 5.2 GHz which has a size of 68mm x 33mm groundplane. For the length and width of 33mm x 13mm patch. This antenna is designed on a printed cicuit board (PCB) FR4 epoxy with a dielectric constant of 4.7 and has a thickness of 1,6mm. This bowtie microstrip antenna design using IE3D software. This antenna has been simulated using IE3D software showed its resonance frequency is 5.270 GHz with a return loss -23 595 dB bandwidth of 230 MHz, VSWR 1,142, unidirectional radiation pattern and impedance 43,919Ω. The results of which have been successfully fabricated antenna with a resonant frequency of 5.21 GHz with a return loss -16.813 dB bandwidth of 79 MHz, VSWR 1.368, unidirectional radiation pattern, impedance 43,546Ω and HPBW 105 °.

scholarly journals Asymmetric-Slit Method on WiFi Antenna with 2.4 GHz and 5 GHz Frequency

2020 ◽  
Vol 4 (2) ◽  
pp. 53
Author(s):  
Petrus Kerowe Goran ◽  
Eka Setia Nugraha
Keyword(s):  
Microstrip Antenna ◽  
Return Loss ◽  
Antenna Design ◽  
The Internet ◽  
Information Searching ◽  
Simple Method ◽  
A Value ◽  
Simulation Results ◽  
5 Ghz ◽  
Antenna Model

Wireless Fidelity (WiFi) devices are often used to access the internet network, both for working and in information searching. Accessing the internet can be administered anywhere provided that the area is within the WiFi devices range. A WiFi device uses 2.4 GHz and 5 GHz operating frequencies. There were several methods employed in the previous studies so that an antenna design could work in two different frequencies, i.e., winding bowtie method, Sierpinski method, and double-circular method. This paper employed a simple method, the slit method. The objective of this paper is to discover a simple antenna model that works on 2.4 GHz and 5 GHz frequencies. This paper employed a square patch microstrip antenna with a slit method. The dimensions of the designed square patch microstrip antenna were 42.03 mm × 27.13 mm × 0.035 mm. The antenna worked at 2.4 GHz and 5 GHz frequencies. The obtained simulation results after the optimization showed that the square patch microstrip antenna using the slit method acquired a value of S11 (return loss) of -10.15 dB at a frequency of 2.4 GHz and -37.315 dB at a frequency of 5 GHz.

Embroidery Leaf Shape Dipole Antenna Performances and Characterisation

2017 ◽  
Vol 7 (3) ◽  
pp. 1467
Author(s):  
N. J. Ramly ◽  
M. K. A. Rahim ◽  
N. A. Samsuri ◽  
H. A. Majid
Keyword(s):  
Return Loss ◽  
Leaf Shape ◽  
Dipole Antenna ◽  
Antenna Design ◽  
Operating Frequency ◽  
Ism Band ◽  
Textile Antenna ◽  
Different Types

In this paper, leaf shape textile antenna in ISM band has been chosen to study. The operating frequency of the dipole antenna is 2.45GHz. The effect of conductive threads with three different types of sewing has been analysed. The first type of sewing leaf shape dipole antenna is to stitch around itself and embroidered into a fleece fabric with circular follow by vertical and horizontal stitch respectively. From measured return loss, the antenna with circular stitch shows better performances with optimum resonances compared with the two types of stitching. The measured results confirm that the circular stitch is more suitable for leaf shape dipole antenna design. Thus it can be concluded that different stitch gives different results for leaf shape dipole antenna.

An Improved Design of PIFA Antenna on Mobile Phone

2013 ◽  
Vol 718-720 ◽  
pp. 1634-1638 ◽  
Author(s):  
Li Yun Zhang ◽  
Zheng Ron Xiao ◽  
Jun Liao
Keyword(s):  
Mobile Phone ◽  
High Frequency ◽  
Return Loss ◽  
Antenna Design ◽  
Frequency Bandwidth ◽  
High Frequency Band ◽  
Simulation Results ◽  
Improved Design ◽  
High Band ◽  
Pifa Antenna

Firstly, the development and principle of PIFA antenna in mobile phone are introduced, and the typical PIFA antenna design is analyzed. The PIFA antenna simulation is based on HFSS software. It is found that the high frequency bandwidth of this kind of antenna is very narrow. Then related parameters are optimized, by increasing the parasitic branch in high frequency band. Simulation results show that the return loss of PIFA antenna in high band is improved and the antenna can be expanded in high band, and matched in low band simultaneously.

scholarly journals Microstrip antenna with DGS based on CSRR array for WiMAX applications

2019 ◽  
Vol 9 (1) ◽  
pp. 157
Author(s):  
Ajay V. G. ◽  
Parvathy A. R. ◽  
Thomaskutty Mathew
Keyword(s):  
Resonant Frequency ◽  
Microstrip Antenna ◽  
Patch Size ◽  
Return Loss ◽  
Ground Plane ◽  
Simulation Software ◽  
Ring Resonators ◽  
Split Ring ◽  
Split Ring Resonators ◽  
Novel Method

<span lang="EN-US">This paper reports a novel method for designing a miniaturized microstrip antenna with DGS based on CSRR array which operates in the frequency of 2.6GHz for low band WiMAX application. The proposed antenna is designed using ANSYS HFSS simulation software. The antenna with optimized parameters is fabricated using FR-4 substrate of thickness 1.6 mm. The simulated and measured performances of the antenna in terms of return loss, directivity and radiation patterns are presented in this work. When Complimentary Split Ring Resonators (CSRRs) array are placed on the ground plane, the resonant frequency is shifted  to a lower value and patch size is reduced .The measurements were taken and compared with the simulated results. The performance characteristics obtained from the measurements show that the proposed antenna is suited for WiMAX application at 2.6GHz.</span>

scholarly journals Desain Antena Mikrostrip Rectangular Patch Array 1x2 dengan U-Slot Frekuensi 28 GHz

2019 ◽  
Vol 7 (1) ◽  
pp. 43
Author(s):  
FAJAR WAHYU ARDIANTO ◽  
SETYAWAN RENALDY ◽  
FARHAN FATHIR LANANG ◽  
TRASMA YUNITA
Keyword(s):  
Radiation Pattern ◽  
Return Loss ◽  
Network Capacity ◽  
Antenna Design ◽  
User Needs ◽  
Antenna Gain ◽  
Rectangular Patch ◽  
Narrow Bandwidth ◽  
Small Gain

ABSTRAKKebutuhan pengguna yang semakin meningkat harus diimbangi dengan peningkatan kecepatan data dan kapasitas suatu jaringan, sehingga diperlukan bandwidth yang lebar. 5G merupakan salah satu teknologi yang akan diresmikan tahun 2020 yang menjadi solusi terhadap peningkatan kecepatan data dan kapasitas layanan. Salah satu kandidat yang menjadi frekuensi kerja 5G yaitu 28 GHz. Antena mikrostrip merupakan salah satu jenis antena yang dapat digunakan untuk teknologi 5G. Namun, antena mikrostrip memiliki beberapa kekurangan, diantaranya bandwidth dan gain yang kecil. Untuk itu, dibutuhkan teknik yang dapat meningkatkan bandwidth dan gain antena. Pada penelitian ini dirancang antena mikrostrip bentuk rectangular patch yang ditambahkan slot berbentuk U dengan tujuan meningkatkan bandwidth dan disusun secara array 1×2 untuk meningkatkan gain antena. Hasil dari simulasi didapatkan antena mampu bekerja pada rentang frekuensi 27,5 GHz – 29,12 GHz pada batas return loss kurang dari -15 dB dengan bandwidth sebesar 1,62 GHz. Nilai gain yang dihasilkan sebesar 7,52 dB. Pola radiasi yang dihasilkan, yaitu unidireksional dan berpolarisasi secara linear.Kata kunci: 5G, 28 GHz, mikrostrip, rectangular patch, array, U-Slot ABSTRACTData rate and network capacity improvements offset the increase of user needs, hence it requires a wider bandwidth. The most current high-end technology, which can solve the problem is 5G. One of the frequency that becomes the candidate of 5G is 28 GHz. For 5G, it could apply one of the antenna types, micro strip antenna. However, micro strip antenna has a shortage of narrow bandwidth and small gain. Therefore, it requires a technique to increase the bandwidth and gain of the antenna. In this study, the form of micro strip of antenna design is a rectangular patch with the addition of U-Slot and arranged 1x2 to increase the bandwidth and antenna gain. The results of the simulation show that the antenna is working well at the range frequency of 27.5 GHz - 29.12 GHz, with a return loss limit of -15 dB with bandwidth of 1.62 GHz, the resulting gain value is 7.52 dB, the resulting radiation pattern is unidirectional and linearly polarized.Keywords: 5G, 28 GHz, microstrip, rectangular patch, array, U-Slot

A Novel RFID Tag Dipole Antenna

2014 ◽  
Vol 513-517 ◽  
pp. 2808-2811
Author(s):  
Ming Lu He ◽  
Yan Bing Xue ◽  
Jing Zhang
Keyword(s):  
Return Loss ◽  
High Efficiency ◽  
Dipole Antenna ◽  
Antenna Design ◽  
Rfid Tag ◽  
Maximum Gain ◽  
Meander Line ◽  
Read Range

There is a problem in normal meander line antenna (MLA) that it is difficult to get performances of miniaturization, high efficiency and high inductance at the same time. A simple novel antenna design for this challenge is described. Two capacitive loads are added at the end of MLA to adjust the impendence. For saving material, holes are digged on the loads. Simulation by HFSS shows that, comparing with the regular MLA, the proposed antennas impedance enhances from 10-12j to 23+150j, and the maximum gain enhances from 1.31dB to 1.67dB, with a read range of 10.1m. Meanwhile the return loss at 915MHz is-34dB, with a wide-10dB bandwidth of 860 ~ 985 MHz.

scholarly journals SIMULASI ANTENA DIPOLE ½ λ DENGAN FREKUENSI KERJA 128,4 MHz UNTUK RADIO PEMANCAR ATIS MENGGUNAKAN SOFTWARE SIMULASI DI BANDAR UDARA INTERNASIONAL HUSEIN SASTRANEGARA BANDUNG

2020 ◽  
Vol 4 (4) ◽  
pp. 27-35
Author(s):  
Ade Irfansyah ◽  
Sudrajat Sudrajat ◽  
Lailatul Fitriyah
Keyword(s):  
Return Loss ◽  
Dipole Antenna ◽  
Software Application ◽  
Antenna Beam ◽  
Radio Transmitter ◽  
Antenna Length ◽  
Radio Equipment ◽  
Simulation Results ◽  
Gap Width ◽  
Beam Range

VHF telecommunications radio equipment, especially ATIS equipment is equipment used to inform information around the airport, such as weather, taxiways, runaway, etc. ATIS equipment works on frequencies between 118-137 MHz. The problem that arises is in the ATIS equipment that is the lack of antenna beam coverage on the ATIS radio transmitter, which is <100 NM, while the normal ATIS beam range is in the range of 150-200 NM. The author simulates dipole antenna ½ λ using the CST studio SUITE software application and compares the results of the simulation with the antenna specifications on the current ATIS equipment. Antenna simulation is done by making antenna dimensions and calculating the wavelength parameters, antenna length, antenna gap width, then the simulation results with the antenna length of 1040 mm and a gap of 5.545 mm, and a diameter of 3 mm, the results obtained are VSWR of 1.51 and return loss of -13,804, with a bandwidth of 12.13 MHz. These parameters were compared with the ATIS equipment antenna specifications at Bandung Husein Sastranegara International Airport and there was an increase in parameters after simulating.

scholarly journals Circular Patch Antenna Design for Data Centric Cognitive Radio based Networks

2021 ◽  
Vol 2 (3) ◽  
pp. 123-127
Author(s):  
Vivekanadam B
Keyword(s):  
Cognitive Radio ◽  
Wireless Communication ◽  
Radiation Pattern ◽  
Patch Antenna ◽  
Return Loss ◽  
Antenna Design ◽  
Design Parameters ◽  
Mobile Service ◽  
Circular Patch ◽  
Circular Patch Antenna

Inefficient utilization of licensed spectrum bands and overcrowding of unlicensed bands are caused due to the spectrum shortage and growing demand for wireless communication. The wireless spectrum is burdened due to the host centric traditional approaches for data detection and recovery in the IP-based networks that. The service or data is retrieved from the service provider through a new routing path every time the mobile service requester initiates a request. The vacant licensed channels are utilized appropriately enabling opportunistic and efficient band usage of the spectrum using Cognitive Radio (CR) technology. Wireless communication with low cost, compact antenna element, high gain, wideband and low profile can be performed using patch antenna. Patch is a significant aspect of antenna design. The antenna design parameters are understood by varying the patch. A good return loss can be achieved by enhancing the radiation pattern on changing the patch dimensions. High Frequency Structure Simulator (HFSS) is used for simulation and analysis of the circular patch antenna. The return loss, radiation efficiency, Voltage Standing Wave Ratio (VSWR) and radiation pattern of the antenna are analyzed.

Analysis and Design of Meander Line Dipole Antennas

2012 ◽  
pp. 10-28
Author(s):  
Zhonghao Hu ◽  
Peter H. Cole ◽  
Christophe Fumeaux ◽  
Yuexian Wang
Keyword(s):  
Resonant Frequency ◽  
Free Space ◽  
Dielectric Material ◽  
Effective Permittivity ◽  
Matching Condition ◽  
Dipole Antenna ◽  
Antenna Design ◽  
Rfid Tag ◽  
Two Factors ◽  
Meander Line

A simple analytic formula, found in the literature for calculating the resonant frequency of a meander line dipole antenna (MDA) in free space from its physical parameters is described. The formula is modified to calculate the resonant frequency of an MDA on a dielectric substrate and for use as an RFID tag antenna by taking two factors into account: (i) the effects of dielectric material underneath the MDA, (ii) the special needs of an impedance matching condition in RFID tag antenna design. The parameter of relative effective permittivity for an MDA on a dielectric board, and the method for deriving this parameter, are introduced. Experiments to verify the modified formula are reported. Test results such as input impedance and reading range of an RFID tag antenna design based on an MDA on a dielectric board are provided. Following that, the radiation pattern and efficiency of an MDA either in free space or on a board are investigated.

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