scholarly journals DESAIN ANTENA MIKROSTRIP E-SHAPED PATCH PADA FREKUENSI 5500 MHz UNTUK WIFI

Author(s):  
Fitri Elvira Ananda ◽  
Shita Fitria Nurjihan ◽  
Muhammad Arif Rahman

Modifying the shape of the patch microstrip antenna is one way to solve the narrow bandwidth. E-Shaped patch microstrip antenna is obtained by modifying a rectangular patch mikrostrip antenna. The results on this research have succesfully compared the design and simulation antenna parameters between rectangular patch and E-shaped patch. It uses FR-4 as a substrate and works on 5500 MHz frequency for WiFi. The feeding method using a feedline method. The E-shaped patch microstrip antenna has a VSWR value of 1.04 and the antenna return loss is -33.73 dB, better than the rectangular patch. The gain of E-shaped patch is increased by almost 2.5 times and the bandwidth is increased by 10.18% compared to the rectangular patch. The radiation pattern of the two patches has the same directional radiation pattern.

2018 ◽  
Vol 10 (2) ◽  
pp. 15-21
Author(s):  
Aprinal Adila Asril ◽  
Lifwarda Lifwarda ◽  
Yul Antonisfia

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 °.


Author(s):  
FAJAR WAHYU ARDIANTO ◽  
SETYAWAN RENALDY ◽  
FARHAN FATHIR LANANG ◽  
TRASMA YUNITA

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


2013 ◽  
Vol 684 ◽  
pp. 303-306
Author(s):  
Eugene Rhee ◽  
Ji Hoon Lee

There are various feeding methods of antenna like as coaxial probe, coupling, parasitic elements, and impedance matching. This paper adopted the microstrip line method as the feeding method of the antenna. The high frequency structure simulator is used to analyze the characteristics of the T-shaped microstrip antenna with various patch dimensions. In comparison with the basic microstrip antenna, this proposed T-shaped microstrip antenna with 40.38 % of patch dimensions has the optimum characteristics of resonant frequency, return loss, and radiation pattern at 2.0 GHz band.


This paper presents the fabrication of an octagonal fractal hybrid micro strip radiator patch antenna that operates over a frequency range of 1.5 GHz to 2GHz suitable for low frequency wireless and mobile applications. The radiator has a dimension of 85x85mm2 on the radiating side and 100x86mm2 ground plane. The model is fabricated on Fire Redundant4 substrate with thickness of 1.6mm over a 10x10mm2 dimension and uses coaxial feeding technique. The model is tested for its performance in the range of 1.5 to 2 GHz on the radiator test bench consists of MIC10 antenna trainer kit with an allowable frequency of up to 2GHz. The radiation characteristics shown are having good return loss and average gain of 39dB with omni directional radiation pattern. The size is to be optimized as the dimensions are very large compared to the usual requirements.


This paper propose the design of microstrip antenna which is used in cellular communication application especially at LTE network. The antenna was printed using FR-4 substrate material with dielectric constant of εr =4.4 and thickness of h = 1.6 mm. The overall dimension of the antenna is 135mm x 32 mm x 1.6 mm with 50 Ω impedance. This antenna operates between 400 MHz to 900 MHz for return loss of less than -10 dB. The simulation results suggest that the antenna gain is 4.725 dB with omni-directional radiation pattern. The antenna is designed to operate in the 2800 MHz, 4100-6200 MHz, and 8.85 GHz 10.00GHz, frequency bands. The characterization of the antenna in free-space as well as in the proximity of the user hand is presented. The results confirm the excellent performance of the proposed diversity antenna.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Xihong Ye ◽  
Mang He ◽  
Pingyuan Zhou ◽  
Houjun Sun

A compact single-feed circularly polarized microstrip antenna is proposed to achieve symmetric radiation pattern over a wide range of observation angles. In order to reduce the radiation aperture and consequently broaden the circular polarization (CP) and the half power beamwidth (HPBW) of the antenna, a partially etched superstrate and a conducting cavity are employed in the design. Further, reasonable axial ratio (AR) and impedance bandwidths are realized within the compact structure by using a simple series crossed-slot aperture coupled feeding. As a consequence, the overall dimension of the fabricated prototype is 0.32λ0× 0.32λ0× 0.12λ0at the center operating frequency of 1.56 GHz, and a 3.0% overlapped bandwidth of 10 dB return loss (RL) and 3 dB AR is obtained. Within the bandwidth, symmetric CP radiation pattern over almost the entire upper hemisphere is observed and the HPBW is also increased from 60° to 106°.


2018 ◽  
Vol 7 (4) ◽  
pp. 85-92 ◽  
Author(s):  
S. Shandal ◽  
Y. S. Mezaal ◽  
M. Kadim ◽  
M. Mosleh

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.


Author(s):  
Rizka Kurnia Indrianti

<p><span>Wifi technology is a means of obtaining information in a fast way, to strengthen the signal, for that it is required that the functioning antenna emit and receive electromagnetic waves in which contained the information signal. A wide range of antennas have been developed for a wide range of applications, one of which is a microstrip antenna. Microstrip antennas have small characteristics, are lightweight, thin, easy to fabricate, and can be used at very long distances. The results of single rectangular patch microstrip antenna measurements indicate that the antenna can work optimally with a frequency of 2,440 GHz, has a return loss-22,182 dB value, VSWR 1,169 value, 0.3452 dB bandwidth value, LOS-45.6 dBm power value with Percentage upload is 97% higher than the reference antenna and the download percentage is 88% higher than the reference antenna, NLOS-79 dBm value with a percentage upload of 33% compared to the reference antenna and the download percentage 12% higher than the Reference antenna, for the range of distances capable of receiving signals up to 120 meters with a percentage of percentage of is 16% higher than the reference antenna.</span></p>


Author(s):  
Priyanka Jain ◽  
Raghavendra Sharma ◽  
Vandana Vikas Thakre

In this proposed design a Rectangular E shaped micro-strip patch antenna is present with rectangular and circular slot within the Rectangular patch which operate at frequency 2.4 GHz. By proposed antenna design and coaxial feeding at suitable place  the resultant return loss, VSWR and bandwidth will be find out. For the propose microstrip antenna we have use FR-4 substrate which contain permittivity of 4.4 and thickness 1.5, loss tangent is 0.02. HFSS simulation software is used for designing and analysis.


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