scholarly journals Bi-Ellipse Microstripline Antenna Array Varians

2021 ◽  
Author(s):  
Putu Artawan
Keyword(s):  
Reflection Coefficient ◽  
Antenna Array ◽  
Standing Wave ◽  
Microstrip Antenna ◽  
Communication Systems ◽  
Return Loss ◽  
Voltage Standing Wave Ratio ◽  
Frequency Range ◽  
X Band ◽  
Working Frequency

The objectives of this research include obtaining and verifying the impedance formula of the designed bi-ellipse microstrip antenna and correlating the results obtained through simulation and experimentation. The research also aims to obtain the structure and dimensions that provide optimal characteristics of the designed bi-ellipse microstrip antenna and produce a prototype at S, C and X-Band frequencies. This research produced the structure and dimensions of a bi-ellipse microstrip antenna that provide optimal characteristics of antenna. The characteristics results of the antenna parameters in this research include a 8x2 array, with a bandwidth value of around 100.0 MHz obtained at a working frequency of 7.09GHz (7.04 GHz - 7.14 GHz), with a reflection coefficient value of 0.02, Voltage Standing Wave Ratio (VSWR) of 1.06, return loss of −30.00 dB and a gain of 7.30 dB. For the 8x4 array, a bandwidth value of approximately 210.0 MHz is obtained at a working frequency range of 2.85GHz, which ranges from 2.74GHz - 2.95GHz, with a reflection coefficient value of 0.04, Voltage Standing Wave Ratio (VSWR) of 1.09, return loss of −27.06 dB and a gain of 8.19 dB. The results presented above fulfill the indicators of good antenna characteristics parameters applicable to radar communication systems.

scholarly journals Antena Mikrostrip Array 8x2 Elemen untuk Aplikasi Radio Gelombang Mikro

2021 ◽  
Vol 9 (2) ◽  
pp. 293
Author(s):  
SYAH ALAM ◽  
INDRA SURJATI ◽  
LYDIA SARI ◽  
JUSTIN TANUWIJAYA
Keyword(s):  
Microstrip Antenna ◽  
Communication Systems ◽  
Return Loss ◽  
Frequency Range ◽  
Radio Communication ◽  
Measurement Results ◽  
Microwave Radio ◽  
Working Frequency ◽  
Element Array ◽  
Return Value

ABSTRAKPeningkatan gain pada antena mikrostrip polarisasi melingkar menggunakan metode array 8x2 element diusulkan dalam penelitian ini. Antena yang diusulkan dirancang untuk bekerja pada rentang frekuensi 10700 – 11700 MHz untuk sistem komunikasi radio gelombang mikro. Untuk meningkatkan gain, antena yang diusulkan di optimasi menggunakan array dengan 8x2 elemen. Dari hasil pengukuran diperoleh nilai return loss -22.77 dB dan VSWR sebesar 1.156. Bandwidth yang dihasilkan dari antena array 8x2 elemen adalah 900 MHz dengan rentang frekuensi kerja 10700 MHz -11600 MHz serta impedansi sebesar 55.87 + j 4.97 Ω pada frekuensi kerja 10925 GHz. Gain dari antena array 8x2 elemen adalah 15.6 dB pada frekuensi kerja 10925 MHz. Optimasi dengan metode array 8x2 elemen berhasil meningkatkan Gain sampai dengan 47.76 % dibandingkan dengan desain array 4x2 element. Antena yang diusulkan cocok dijadikan kandidat untuk digunakan pada sistem komunikasi radio gelombang mikro.Kata kunci: antena, mikrostrip, gain, array, radio gelombang mikro ABSTRACTGain optimization on a circular polarization microstrip antenna using the 8x2 element array method is proposed in this study. The proposed antenna is designed to work in the frequency range 10700 - 11700 MHz for microwave radio communication systems. To increase the gain, the proposed antenna is optimized using an array with 8x2 elements. From the measurement results obtained return value of -22.77 dB and VSWR of 1,156. The Bandwidth produced from the 8x2 element antenna array is 900 MHz with a working frequency range of 10700 MHz - 11600 MHz and an impedance of 55.87 + j 4.97 Ω at a working frequency of 10925 MHz. The gain of the 8x2 element array antenna is 15.6 dB at a working frequency of 10925 MHz. Optimization with the 8x2 element array method succeeded in increasing Gain by up to 47.76% compared to the 4x2 element array design. The proposed antenna is suitable as a candidate for use in microwave radio communication systems.Keywords: microstrip, antenna, gain, array, microwave radio

scholarly journals Perancangan dan Realisasi Antena Mikrostrip Log Periodik dengan Elemen Parasitik Air Gap untuk Aplikasi TV Digital DVB-T2

2019 ◽  
Vol 7 (2) ◽  
pp. 324
Author(s):  
INDRA SURJATI ◽  
SYAH ALAM ◽  
YULI KURNIA NINGSIH
Keyword(s):  
Microstrip Antenna ◽  
Return Loss ◽  
Digital Tv ◽  
Air Gap ◽  
Frequency Range ◽  
Parasitic Element ◽  
Measurement Results ◽  
Working Frequency

ABSTRAKPenelitian ini mengusulkan desain dan prototipe antena mikrostrip log periodik yang dikembangkan dengan metode parasitik air gap (celah udara) untuk aplikasi TV digital pada rentang frekuensi 478-694 MHz. Penggunaan elemen parasitik dengan celah udara bertujuan untuk meningkatkan nilai gain pada antena. Dari hasil pengukuran diperoleh nilai return loss sebesar -20.27 dB dan VSWR sebesar 1.31 pada frekuensi kerja 600 MHz. Bandwidth yang dihasilkan dari antena yang telah dipabrikasi adalah 273 MHz dengan rentang frekuensi kerja 461 MHz – 734 MHz. Gain yang dihasilkan dari antena mikrostrip log periodik dengan elemen parasitik adalah 16.67 dB pada frekuensi kerja 600 MHz atau meningkat 40.02 % dibandingkan dengan log periodik konvensional yang telah didesain sebelumnya. Dari keseluruhan hasil yang diperoleh maka dapat disimpulkan bahwa antena yang diusulkan dapat digunanakan sebagai antena penerima untuk aplikasi TV Digital di Indonesia.Kata kunci: antena, mikrostrip, log periodik, parasitik, celah udara ABSTRACTThis study proposes the design and prototype of log periodic microstrip antenna which was developed using the parasitic air gap for digital TV applications with a frequency range of 478-694 MHz. The use of parasitic elements with air gap aims to increase the gain of the antenna. From the measurement results, proposed antenna obtained return loss of -20.27 dB and VSWR of 1.31 at the working frequency of 600 MHz. The bandwidth produced from proposed antenna is 273 MHz with a working frequency range of 461 MHz - 734 MHz. The gain generated from log periodic microstrip antenna with parasitic element is 16.67 dB at the working frequency of 600 MHz or increased 40.02 % compared with conventional log periodic that have been designed before. From the overall results obtained, it can be concluded that the proposed antenna can be used as receiver antenna for Digital TV applications in Indonesia.Keywords: antenna, microstrip, log periodic, parasitic, air gap

scholarly journals Characteristic Mode Analysis Based X-Band Defected Dodecagonal Patch Antenna

2019 ◽  
Vol 9 (1) ◽  
pp. 3216-3220
Keyword(s):  
Microstrip Antenna ◽  
Return Loss ◽  
Mode Analysis ◽  
Center Frequency ◽  
Frequency Range ◽  
Characteristic Mode ◽  
Resonant Frequencies ◽  
Band Frequency ◽  
X Band ◽  
The Impact

A defected dodecagonal microstrip antenna fed through co-planar waveguide and operating in X-band frequency range(8-12 GHz) is proposed. Characteristic mode analysis is employed in examining the impact of defects on the resonant frequencies and return loss. Contrast in return loss for the suggested antenna with and without defects is dealt through Characteristic mode Analysis. Geometrical aspects of the proposed antenna are 40 mm × 35.5 mm × 0.1 mm. Subtrate material used in design is FR4 with a dielectric constant (εr ) = 4.4 and height (h) = 0.1m. CST Microwave Studio is used to simulate antenna parameters and Characteristic mode analysis. A return loss of -49.5dB at center frequency of 10.12GHz is observed with a fractional bandwidth of 47.6%. Gain of the antenna peaks at 4 dBi in the band of operation.

scholarly journals Design and Implementation of Planar Fourtear Microstrip Antenna for WLAN and WiMAX Applications

2016 ◽  
Vol 16 (1) ◽  
pp. 20
Author(s):  
Ken Paramayudha ◽  
Yuyu Wahyu ◽  
Aprilia Pustpita Sari ◽  
Heroe Wijanto
Keyword(s):  
Finite Element ◽  
Radiation Pattern ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Radiation Patterns ◽  
Frequency Range ◽  
Design And Implementation ◽  
Working Frequency

In this paper, the microstrip planar fourtear antenna that operate at frequency range 2300 – 2500 MHz was investigated, Some applications suitable to operate in this frequency are WiMAX at 2.3 and 2.5 GHz and WLAN at 2.4 GHz. Simulations performed with the aid of Finite Element Emthod (FEM) based software which can calculte and comply the appropriate design to be able to operate at the desired working frequency. The analyzed parameters include : SWR, impedance, return loss, radiation patterns, gain, and polarization. From the measurement, bandwidth obtained is equal to 7.69% in the frequency range of 2318,250-2500 MHz in VSWR < 2. Radiation pattern measurement was unidirectional and the polarization was elliptical.

scholarly journals Wide Band Parasitic Microstrip Antenna using Multiple Feedline for Mobile Communication

2019 ◽  
Vol 9 (1) ◽  
pp. 1887-1891
Keyword(s):  
Mobile Communication ◽  
Communication System ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Wide Band ◽  
Frequency Range ◽  
Optimal Bandwidth ◽  
Feed Line ◽  
Measurement Results ◽  
Working Frequency

his paper proposes design of parasitic microstrip antenna with multiple feed line for mobile communication applications at range frequency of 1800 – 2100 MHz. The purpose of adding multiple feed line is to enhanced the bandwidth of the proposed antenna. The multiple feed line used has an impedance of 100 Ohm and is placed on the edge of the patch parasitic microstrip antenna. The optimal bandwidth of the microstrip antenna is obtained by adjusting the dimensions and position of the multiple feed line. From the measurement results obtained return loss of -14.91 dB, VSWR of 1.44 at working frequency of 1800 MHz and bandwidth of 427 MHz with a frequency range 1715 MHz - 2142 MHz. . From these results it can be concluded that the banwidth of proposed antenna has met the criteria to be used in a mobile communication system.

scholarly journals Array Factor in Curved Microstripline Array Antenna for Radar Communication Systems

2021 ◽  
Vol 7 (1) ◽  
pp. 1-14
Author(s):  
Putu Artawan ◽  
Yono Hadi Pramono ◽  
Mashuri Mashuri ◽  
Josaphat T. Sri Sumantyo
Keyword(s):  
Reflection Coefficient ◽  
Communication Systems ◽  
Return Loss ◽  
Array Antenna ◽  
X Band ◽  
Feeding Technique

This paper presents the designed of varians array in curved microstripline antenna for radar communication. The antenna geometry comprises of three varians in matrics 2x2, 2x4 and 4x4 dimensions. The several array operates in C-Band frequencies (4GHz – 8GHz) and X-Band frequencies (8GHz-12GHz) with a 1.82 VSWR, -18.72dB Return loss, 0.29 reflection coefficient, and 5.8dB gain for 2x2 array, 1.64 VSWR, -16.17dB Return loss, 0.24 reflection coefficient, and 5.4dB gain for 2x4 array, 1.04 VSWR, - 37.70dB Return loss, 0.19 reflection coefficient, and 7.6dB gain for 4x4 array. All of the varians in array elements are feed using a direct feeding technique. This array antenna is suitable developed for use in radar communication systems.

scholarly journals Impedance Matching Simulation for Microstrip Antenna on Frequency 3.4-3.7 GHz Using Double Stub

2020 ◽  
Vol 6 (2) ◽  
pp. 113-123
Author(s):  
Helfy Susilawati ◽  
Ahmad Fauzi ◽  
Akhmad Hasyim
Keyword(s):  
Transmission Line ◽  
Standing Wave ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Impedance Matching ◽  
Characteristic Impedance ◽  
Voltage Standing Wave Ratio ◽  
Antenna Impedance ◽  
Rectangular Microstrip Antenna ◽  
Reflected Power

Impedance matching is an attempt to adjust the antenna impedance with the characteristic impedance of the transmission line. Impedance matching has functions to avoid reflected power from the antenna so that power cannot be received by the receiver. In this study, impedance matching was used double stub. The voltage standing wave ratio (VSWR) indicates how well the impedance matching is made. Simulation of this impedance matching will use to microstrip antenna on frequency 3.4 – 3.7 GHz. CST Studio Suite is used to simulating the antenna microstrip with double stub. Based on the result, this research shows that VSWR and return loss in single and double rectangular microstrip antenna have a better value if use impedance matching than without using impedance matching.

Microstrip antenna array for multiband dedicated short range communication systems

2011 ◽  
Vol 53 (12) ◽  
pp. 2794-2796 ◽  
Author(s):  
Tiago Varum ◽  
João Matos ◽  
Pedro Pinho ◽  
Ricardo Abreu ◽  
Arnaldo Oliveira ◽  
...  
Keyword(s):  
Antenna Array ◽  
Microstrip Antenna ◽  
Communication Systems ◽  
Short Range ◽  
Dedicated Short Range Communication ◽  
Microstrip Antenna Array

scholarly journals Circle Microstrip Antenna Simulation for Frequency 3.5 GHz

2021 ◽  
Vol 1 (1) ◽  
pp. 1-4
Author(s):  
Wildan Wildan ◽  
Dwi Astuti Cahyasiwi ◽  
Syah Alam ◽  
Mohd Azman Zakariya ◽  
Harry Ramza
Keyword(s):  
Dielectric Constant ◽  
Patch Antenna ◽  
Microstrip Antenna ◽  
Microstrip Line ◽  
Return Loss ◽  
Tangent Loss ◽  
Substrate Thickness ◽  
Total Radiation ◽  
Circular Patch Antenna ◽  
Working Frequency

This research proposed microstrip circular patch antenna simulation at a working frequency 3500 MHz. The antenna has been designed using a Duroid RT5880 substrate with dielectric constant (εr) = 2.2, substrate thickness (h) = 1.575 mm, and tangent loss = 0.0009 with microstrip line feeding. The simulation result, return loss value obtained -26.385, VSWR value 1.09, gain value 7.64 dBi, total radiation efficiency value -0.6489 dB, and bandwidth value 72 MHz (3468.8 MHz – 3541.9 MHz).

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