2017 International Conference on Broadband Communication, Wireless Sensors and Powering BCWSP 2017

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2017 International Conference on

Broadband Communication, Wireless Sensors and Powering BCWSP 2017

Table of Content

Cover i

Title Page ii

Copyright Notice iii

Table of Contents iv

Patch Modification and Slot Arrangement Of Microstrip Antenna For Improving

The Axial Ratio 1

Syah Alam, Indra Surjati, Yuli Kurnia Ningsih

Simulation of Scattered Field in X-band Synthetic Aperture Radar 6 A. A. Voronin A. N. Leukhin

Application of a TSMFM Planar-3D Fast Integral Equation Solver for Surface Wave 11 Characterization of Antenna Arrays

Thomas Vaupel, Volkert Hansen

Design and Analysis QoS VoIP using Routing Border Gateway Protocol (BGP) 17 Eko Ramadhan, Ahmad Firdausi,Setiyo Budiyanto

Enhancing Security on E-Health Private Data Using SHA-512 21

Sirep Purwanti, Beny Nugraha, Mudrik Alaydrus

Dual Voltage Differentially-Driven Rectifier for Rectenna Application 25 Fitri Yuli Zulkifli, Febrika Wenas Rahmawan

Observation of Multiband Characteristics of Microstrip Antenna Using Defected 28 Ground Structure

Ike Yuni Wulandari, Mudrik Alaydrus

The Linkage Analysis of Telecommunication Sector in the Indonesian Economy in 32 Mobile Broadband Era

Kasmad Ariansyah, Sri Ariyanti

Effects of Pressure and Nozzle Angle on RPM: New Turbine Pico Hydro Nest-Lie Model 37 Lie Jasa, I Putu Ardana, Antonius Ibi Weking, Ratna Ika Putri, Mauridhi Hery Purnomo

Rectangular Microstrip Antenna with Annular Slot for WLAN 41 Jimi Prasojo, Dian WidiAstuti

Human Voice Filtering with Band-Stop Filter Design in MATLAB 46 Wulan Meiniar, Filda Ayu Afrida, Ai Irmasari, Ali Mukti, Dwi Astharini

Digital Beamforming of Smart Antenna in Millimeterwave Communication 51 Rahmad Hidayat, Rushendra, Ellisa Agustina

A Comparison of Human Skin Color Detection for Biometric Identification 56

Regina Lionnie, Mudrik Alaydrus

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Feasibility Analysis With Capital Budgeting Backbone Network Fiber Optic Cable 61 West Palapa Ring

Denny Setiawan, Nurwan Reza Fahrurrozi

The Barriers of Long Term Evolution (LTE) Adoption: Indonesian Consumers Perspective 65 Awangga Febian Surya Admaja, Kasmad Ariansyah

Minimizing the Temporal Fluctuation in the Signal Spectral of FSO Communications 71 to Improve BER Performance Under the Influence of Atmospheric Turbulence

Ucuk Darusalam, Purnomo S. Priambodo and Eko T. Rahardjo

Network Security Analysis SCADA System Automation on Industrial Process 76 Hamzah Hilal, Anas Nangim

Multiband Microstrip Antenna Array with Slot and Array Method for GSM, 82 WCDMA, and LTE

Teguh Firmansyah, Herudin, Fery Kurniawan, Yus Rama Denny

A New Gridded Parasitic Patch Stacked Microstrip Antenna for Enhanced Wide 87 Bandwidth in 60 GHz Band

Iskandar Fitri, Al Amin Akbar

The Effect of Moving Load on Remote Weight Monitoring System for Simple 91 Infant Incubator

Arif Widianto, M. Raditya Gumelar, Pradipta Mahatidana, Rizky Ramadian Wijaya, Intan Nurfitri, Kresna Devara, Retno Wigajatri Purnamaningsih

Empirical Approach Investigation Li-Fi Pathloss Propagation Model And 95 Filter Coloring Effect

Galang P. N. Hakim, Try W. Fahmi, Mudrik Alaydrus

The QoE Assessment Model for 5G Mobile Technology 100

Fery Andriyanto, Muhammad Suryanegara

Microwave Absorbing Studies of Magnetic Materials for X-Band Frequencies 105 Erfan Handoko, Iwan Sugihartono, Mangasi A. Marpaung, Zulkarnain Jalil,

Maulana Randa, C. Kurniawan, Mudrik Alaydrus

Preliminary Design of Internet of Things (IoT) Application for Supporting Mother 109 and Child Health Program in Indonesia

Trie Maya Kadarina, Rinto Priambodo

Impact of Mobile Sink on Grid Topology of Wireless Sensor Network 115 Misfa Susanto, Yona Annisa, Agus Trisanto, Syaiful Alam

Techno Economic Analysis of Smart Meter Reading Implementation in PLN Bali 121 using LoRa Technology

Gunawan Wibisono, Gilang Permata Saktiaji, and Ihsan Ibrahim

Recognizing the Sarcastic Statement on WhatsApp Group with Indonesian Language Text 127 Afiyati, Edi Winarko and Anis Cherid

Author Index 133

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Patch Modification and Slot Arrangement Of Microstrip Antenna For Improving The Axial Ratio

Syah Alam

¹⁾

1

Electrical Engineering Department

Faculty of Engineering, 17

^th

August 1945 University Jakarta, Indonesia

syah.alam@uta45jakarta

.ac.id

Indra Surjati

²⁾

, Yuli Kurnia Ningsih

³⁾

2,3

Graduate Program of Electrical Engineering Trisakti University

Jakarta, Indonesia [email protected]

Abstract — In this research, we produced a new design of microstrip antenna with truncated corner technique modified with slot in the middle patch of microstrip antenna to produce circular polarization for Long Term Evolution application. The value of return loss, VSWR and axial ratio of the antenna can enhanced by adjusting the length of the slot provided in the middle patch of microstrip antenna. Antenna designed using FR4 substrate with value (İr) = 4.3, substrate thickness (h) of 1.6 mm and loss tangent (tan į) of 0.0265. From the simulation results obtained return loss -45.45 dB, VSWR 1.014 and axial ratio 2.014 dB at a working frequency of 2300 MHz. The gain of the designed antenna is 6.93 dB. Slot method increased the axial ratio of the antenna until 26.17 % and array method increased gain until 26 %.

Keywords — Long Term Evolution, truncated corner, microstrip antenna, axial ratio, gain

I. INTRODUCTION

The development of information technology is now growing rapidly, especially in wireless telecommunications.

Data transfer speeds become an important requirement to make the telecom provider optimize the network in order to meet customer needs. The user side need a receiver that can work for some diversed telecommunications systems, such as DCS at frequency band (1710 MHz -1885 MHz), PCS (1907 MHz -1912.5MHz), UMTS (1920 MHz – 2170 MHz),WLAN 2.4 GHz and LTE 2.3 GHz [1]. According to the Regulation of the Minister of Communication and Information of the Republic of Indonesia Number 28 / PER / M.KOMINFO / 09/2014 stated that the band frequency of 2300 MHz - 2400 MHz is used for broadband communication system such as Long Term Evolution [2].

Telecommunications devices are now becoming smaller and more compact, so it can be embedded to telecommunications equipment and one of these telecommunications devices is antenna. Microstrip antenna is one of many type of antenna that can be used for wireless communications, because this antenna has an advantages such as small size, compact and easy to be fabricated [3]. However, this antenna has several disadvantages too including its narrow bandwidth, low gain and low directivity [4]. The circular polarization (CP) is a special case of elliptical polarization and

it is realized when antenna configuration excites two equal amplitude, time and space orthogonal resonant modes [5].

Polarization loss may result due to the misalignment in the signal and the receiving antenna. This problem can be catered by the use of circular polarization. To obtain circular polarization can be done by using the truncated corner method by cutting the edge of the rectangular microstrip patch antenna on the opposite side and the slot method can enhanced the value of return loss and VSWR parameter beside that to increase the gain of the antenna can be done by using array method . In a previous study [6-10] obtained a circular polarization using the truncated corner method by cutting the edges of a rectangular microstrip patch antenna. While in research conducted by [11] the addition of T and U shaped slot on patch antenna can enhanced the value of return loss parameter and VSWR with efficiency about 92%.

Furthermore, in a study conducted by [12] using a circular slot, the bandwith axial ratio 3 dB of 230 MHz (23%) at a working frequency of 10 GHz. The array method can increase the gain value of microstrip antenna as the previous study conducted by [13-15].

From the results obtained by previous studied can be concluded that truncated corner method can produce circular polarization with axial ratio 3 dB and slot method can enhanced value of return loss -10 dB and VSWR 2, while array method can be used to increase gain of microstrip antenna Therefore this paper proposed a new design a rectangular microstrip antenna with truncated corner method with additional slots and developed by array method for Long Term Evolution application purposes.

II. D^{ESIGN OF}A^NTENNA

The proposed antenna is realized on one layer substrate with relative permittivity (

İ

r) of 4.3, substrate thickness (h) of 1.6 mm and loss tangent (tan į) of 0.0265. The first stage is to design rectangular antenna design with working frequency of 2300 MHz for Long Term Evolution (LTE) application. The dimension of the rectangular patch antenna is given by [16].

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W = ^ܥ

ʹ݂ට^ߝݎ൅ͳ_ʹ (1)

L = Leff - 2¨L (2)

Leff = ^ܥ

ʹ݂ඥ^ߝݎ݂݂݁ (3) ߝreff = ^ߝݎ൅ͳ

ʹ ൅^ߝݎെͳ

ʹ ሾͳ ൅ ͳʹ^݄

ܹሿ^െ^ͳ^ʹ (4) The second stage is cutting at the edge of patch antenna to obtain circular polarization with axial ratio 3 dB.

Rectangular patch microstrip antenna with truncated corners is one of the most commonly used single-sided microstrip antenna with cutting the edge of patch usually 2 mm - 10 mm with cutting angle of 45⁰. To calculate width of cutting on the edge the patch is given by (5) [17].

οܮ ൌ ͳ Ͷ ൗ ൈ ܮ

(5) The third stage is to add a slot in the middle of the patch antenna to enhanced the value of return loss and VSWR parameter. The dimensions of the slot were obtained by iterating with dimension of width between 1 - 2 mm and the length of 3 - 4 mm [17]. The fourth stage is to design the antenna by the array method to increase the gain by using two patch antenna truncated corner microstrip with feed line of 50 Ohm, 70 Ohm and 100 Ohm. To determine width of feed line of 50 Ohm, 70 Ohm and 100 Ohm is given by (6) and (7) while to determine the distance between patches in the array method is given by (8) [18].

B = _௓^଺଴గ^మ

బඥఌ೐೑೑ (6)

ܹ ൌ^ଶ௛

గ ቄܤ െ ͳ ൅^ఌ_ଶఌ^ೝ^ିଵ

ೝ ሾሺܤ െ ͳሻ ൅ ͲǤ͵ͻ െ^଴Ǥ଺ଵ

ఌ_ೝሿቅ (7)

d =

^ఒ_ଶ

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The design of proposed antenna can be seen in Figure 1 while the slot design on the middle of the antenna patch can be seen in Figure 2.

Fig 1. Truncated corner microstrip antenna with array

Fig 2. Dimension of slot of truncated microstrip antenna

From Figure 1 above can be seen the dimension of A = 24 mm , B = 24 mm, C = 24 mm , D = 24 mm, E = 7 mm, F = 7 mm, Lz1 = 10.4 mm, Lz2 = 15.5 mm Lz3 =13 mm and Lz = 21 mm. The dimension of the enclosure is 82 mm x 69 mm while the width of feeder channel Z1, Z2 and Z3 are 3.1 mm, 1.6 mm and 1 mm. From Figure 2 above can be seen the dimension slot of the microstrip antenna with X = 2 mm, Y = 1 mm, X1 = 3 mm.

III. RESULT AND DISCUSSION

After having several iterations, the best simulation results can be achieved by adjusting the dimension of X and X1 of slot in the middle patch antenna. The simulation results of return loss, VSWR and axial ratio from iteration process are shown in Figure 3, Figure 4 and Figure 5.

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Fig 3. Simulation of return loss from iteration X and X1

Fig 4. Simulation of VSWR from iteration X and X1

Fig 5. Simulation of axial ratio from iteration X and X1

The overall iterations can be summarized into Table 1 and Table 2 as follows. After having several iterations by adjusting X and X1, from Table 1 and Table 2 it can be seen return loss of -45.45 dB and VSWR of 1.011 at frequency of 2300 MHz can be obtained when the dimension of X = 2 mm, X1 = 3 mm and Y = 1 mm. With this condition the axial ratio of truncated patch antenna with slot is 2.016. The comparison axial ratio of the truncated patch antenna without slot and the proposed antenna after the iteration process can be seen in Figure 6 and Table 3.

TABLE 1. ITERATIONS OF THE FRACTAL ANTENNA

Iteration Parameter

X X1 Y

First 2 mm 3 mm 1 mm

Second 3 mm 4 mm 1 mm

Third 4 mm 5 mm 1 mm

TABLE 2. SIMULATION RESULTS AT FREQUENCY OF 2300MHZ

Iteration Parameter

Return Loss VSWR Axial Ratio

First -45.45 dB 1.011 2.015 dB

Second -22.54 dB 1.151 1.569 dB

Third -17.50 dB 1.308 1.121

Fig 6. Comparison simulation of axial ratio

TABLE 3. COMPARISON OF AXIAL RATIO

Condition of Antenna Axial Ratio

With Slot 2.016

Without Slot 2.751

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From figure 6 and table 2 can be seen that using slot the axial ratio can be increased until 26,71% at frequency 2300 MHz compared with truncated antenna without slot. The comparison return loss and VSWR of the truncated patch antenna without slot and the proposed antenna after the iteration process can be seen in Figure 7 , Figure 8 and table 4.

From figure 7, Figure 8 and table 4 can be seen that using slot the return loss can be increased from -17,30 dB until - 17,30 dB and VSWR increased from 1.315 until 1.011 at frequency 2300 MHz compared with truncated antenna without slot. The comparison gain of proposed antenna after the iteration process can be seen in Figure 8 and table 5.

From figure 9 and table 5 can be seen that using array method the gain of the antenna can be increased until 26 % at frequency 2300 MHz compared with single patch truncated antenna with slot. Therefore it can be concluded that slot method succeeds to increased return loss and VSWR beside that the array method increased the gain of the antenna.

Fig 7. Comparison simulation of return loss

Fig 8. Comparison simulation of VSWR

Fig 9. Comparison simulation of gain

TABLE 4.COMPARISON OF RETURN LOSS AND VSWR Condition of Antenna Return Loss VSWR

With Slot -45.45 dB 1.011

Without Slot -17.30 dB 1.315

TABLE 5.COMPARISON OF RETURN LOSS AND VSWR Condition of Antenna Gain

Array Patch 6.93 dB

Single Patch 5.50 dB

IV. CONCLUSION

A new design of truncated corner patch microstrip antenna with slot is eventually well proposed. The best value of return loss, VSWR and axial ratio can be obtained by adjusting the dimension of height of slot at the middle of patch antenna. The axial ratio of the proposed microstrip antenna is 2.016 increased until 26.17 % with return loss is -45.45 dB and VSWR is 1.011 compare with truncated antenna without slot.

Beside that array method can increased gain of the antenna until 26 % compare with single patch truncated antenna with slot.

R^EFERENCES

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Jakarta, 2014.

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Jakarta: Universitas Trisakti

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