scholarly journals DESAIN ANTENA MIKROSTRIP UNTUK ALTERNATIF ANTENA SIDEBAND DVOR (DOPPLER VHF OMNIDIRECTIONAL RANGE)

2020 ◽  
Vol 5 (1) ◽  
pp. 50-58
Author(s):  
Totok Warsito ◽  
Yuyun Suprapto ◽  
Margono Margono ◽  
Romma Diana
Keyword(s):  
Return Loss ◽  
Cst Microwave Studio

Antena merupakan salah satu perangkat penting yang ada pada sistem navigasi Doppler VOR (DVOR). Saat ini pengembangan antena dengan biaya produksi rendah menjadi salah satu alternatif tujuan para peneliti. Salah satu teknologi yang banyak digunakan sebagai solusinya adalah antena berbasis mikrostrip. Sebab antena berbasis mikrostrip menawarkan biaya produksi yang sangat rendah dibandingkan dengan jenis antena lain. Antena yang dipakai pada sistem DVOR saat ini adalah antena Alford Loop. Pada penelitian ini dilakukan perancangan antena mikrostrip rectangular dengan pencatuan coaxial sebagai alternatif antena DVOR yang bekerja pada frekuensi VHF (frekuensi 108-118 MHz), sehingga hal ini memungkinkan biaya produksi yang lebih murah dibandingkan antenna Alford Loop pada umumnya. Perancangan dan simulasi antena dilakukan menggunakan software CST Microwave Studio menggunakan material FR-4 dengan konstanta dielektrik (). Hasil perancangan dan simulasi antena menunjukkan return loss (S11) sebesar -16.1 dB dan gain sebesar 4 dB pada frekuensi 113 MHz. Dari hasil simulasi juga dapat diketahui bahwa memiliki polarisasi linier horizontal dan polaradiasi yang bersifat omni-directional.

scholarly journals Design and Simulation of Spoon Shaped Antenna using DGS

2019 ◽  
Vol 9 (2) ◽  
pp. 2257-2259
Keyword(s):  
Return Loss ◽  
Antenna Design ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Antenna Structure ◽  
Comparison Results ◽  
Wireless Application ◽  
Cst Microwave Studio

A planer spoon shaped antenna with defected ground structure (DGS) is designed and fabricated for wireless application. The proposed antenna design exhibits 1.6GHz bandwidth, 2.20dBi Avg. Gain and maximum return loss of -24.5dB, which offers better results in wideband application. The Proposed antenna structure is simulated by software CST MWS (CST Microwave Studio) version 2018 and later comparison results are also presented

scholarly journals PENGEMBANGAN ANTENA ARRAY DENGAN STRUKTUR MEBG UNTUK MENGURANGI EFEK MUTUAL COUPLING

2019 ◽  
Vol 2 (1) ◽  
pp. 1-7
Author(s):  
Raka Kurnia ◽  
Efri Sandi ◽  
Wisnu Djatmiko
Keyword(s):  
Mutual Coupling ◽  
Return Loss ◽  
Band 3 ◽  
Network Analyzer ◽  
Cst Microwave Studio

Abstrak. Penelitian ini bertujuan untuk mengurangi efek mutual coupling dari antena array dengan tiga elemen. Peneliti menggunakan tambahan struktur MEBG dengan sampel frekuensi S-band 3 GHz. Penelitian dilakukan di Laboraturium Telekomunikasi Fakultas Teknik Universitas Negeri Jakarta pada bulan September 2017 – September 2018. Pengujian terhadap antena mikrostrip dengan tambahan struktur MEBG dilakukan dalam dua tahap, yaitu saat simulasi dan setelah fabrikasi. Terdapat dua antena pada setiap tahapannya yaitu array tanpa penambahan MEBG dan antena array dengan MEBG. Kedua antena dibandingkan sebagai usaha untuk mengukur efektifitas antena. Simulasi menggunakan bantuan software CST Microwave Studio Suite 2014 &2016 dan antena yang telah difabrikasi diukur dengan bantuan Network Analyzer merk Anritsu S223E. Penambahan struktur MEBG ini berhasil mengurangi nilai mutual coupling sebesar 0,51 dB, dan juga mempengaruhi efek mutual coupling yang berimbas pada naiknya impedansi input sebesar 1,09 Ω. Selain itu dengan struktur MEBG dapat menaikan performansi antena diantaranya berhasil menurunkan nilai return loss, dan membuat antena semakin matching.

scholarly journals Microstrip-Fed Circular Disc Monopole Antenna with Defected Waveguide Structure

2018 ◽  
Vol 8 (1) ◽  
pp. 189 ◽  
Author(s):  
S. J. Chin ◽  
M. Z. A. Abd. Aziz ◽  
M. R. Ahmad
Keyword(s):  
Return Loss ◽  
Waveguide Structure ◽  
Monopole Antenna ◽  
Circular Disc ◽  
Inner Surface ◽  
Parametric Studies ◽  
Low Efficiency ◽  
Cst Microwave Studio

This paper presented the microstrip-fed circular disc monopole antenna with defected waveguide structure. First, the microstrip-fed circular disc monopole antenna was designed. Next, the monopole antenna was designed with waveguide and lastly followed by the defected waveguide structure where the uniplanar compact (UC) structure was used. CST Microwave studio software was used for simulation and parametric studies process. Initially, the microstrip-fed circular disc monopole antenna was designed to achieve return loss less than -10dB for wideband frequencies. Then, the gain and directivity was improved with the integration of waveguide. The highest directivity of 11.38dBi found at 13.5GHz. However, low efficiency and narrower bandwidth were obtained. Next, uniplanar compact defected waveguide structure (UC DWS) was designed at inner surface of waveguide. The bandwidth achieved 3.09GHz where it covered from 10.91GHz to 14GHz. Meanwhile, the directivity maintained higher than the monopole antenna with highest directivity of 8.84dBi at 10GHz. The gain was also improved from 11GHz to 14GHz with highest gain of 6.38dB occurred at 13.5GHz.

scholarly journals Desain dan Manufaktur Antena Heliks Oktafilar Pada Frekuensi 436,5 MHz Untuk Sistem Komunikasi Satelit

2018 ◽  
Vol 6 (2) ◽  
pp. 27
Author(s):  
Heri Agus Susanto
Keyword(s):  
Return Loss ◽  
Uhf Band ◽  
Cst Microwave Studio

Antena heliks oktafilar merupakan antena modifikasi dari antena heliks. Proyek akhir ini berfokus pada perancangan dan pembuatan antena heliks bifilar pada frekuensi 436,5 MHz. Frekuensi 436,5 MHz merupakan frekuensi UHF-Band yang sering diaplikasikan dalam sistem komunikasi satelit saat ini. Hasil simulasi antena menunjukkan bahwa antena ini dapat bekerja pada frekuensi 436,5 MHz.Antena heliks oktafilar didesain menggunakan perancangan optimum berdasarkan spesifikasi yang telah ditetapkan dan dilakukan simulasi antena dengan menggunakan software CST Microwave Studio 2011 dengan hasil return loss sebesar -32,656 dB pada diameter kawat 1,5 mm dan bandwidth sebesar 7,33 MHz. sedangkan pada diameter kawat 1,5 mm, hasil return loss sebesar -23,545 dB pada diameter kawat 1,7 mm dan bandwidth sebesar 8,35 MHz. Nilai VSWR pada diameter 1,5 mm adalah 1,0477. Untuk diameter 1,7 mm VSWR sebesar 1,1425 dan gain yang diperoleh dari hasil simulasi pada diameter 1,5 mm adalah sebesar 1,99 dBi, sedangkan untuk gain pada diameter 1,7 mm sebesar 2,07 dBi.Hasil realisasi antena pada antena heliks oktafilar menghasilkan return loss sebesar -11,21 dB pada diameter kawat 1,5 mm dan bandwidth sebesar 60,954 MHz. sedangkan hasil return loss sebesar -11,07 dB pada diameter kawat 1,7 mm dan bandwidth sebesar 90,007 MHz. Nilai VSWR pada diameter 1,5 mm adalah 1,76. Untuk diameter 1,7 mm VSWR sebesar 1,79 dan gain yang diperoleh dari hasil simulasi pada diameter 1,5 mm adalah sebesar 3,63 dBi .sedangkan untuk gain pada diameter 1,7 mm sebesar 4,15 dBi.

scholarly journals Design of Horse Shoe Patch antenna for wireless Applications

2018 ◽  
Vol 3 (1) ◽  
pp. 14-16
Author(s):  
N. Jayanti ◽  
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Substrate Material ◽  
Antenna Design ◽  
Substrate Thickness ◽  
Far Field ◽  
Wireless Applications ◽  
Substrate Layer ◽  
Cst Microwave Studio

This paper illustrates the design and analysis of a horseshoe patch antenna and compares the results of antenna for Duroid (ɛr = 2.2), Rogers RO4350 (ɛr = 3.66) and FR-4 (ɛr = 4.3) as substrate material and another comparison is between proposed antenna with and without an upper layer of substrate (duroid). The substrate thickness taken for this antenna is 1.57mm and for the substrate layer above the patch, thickness is 0.2mm. Comparison of these different structures has been done on the basis of return loss, VSWR, efficiency, and far-field. In these structures, a horse shoe-shaped patch is placed above the substrate. The proposed antenna has been designed and simulated using CST microwave studio 2014. The proposed antenna design can be used for WLAN, WiMAX, and IMT applications.

scholarly journals Pengembangan Antena Mikrostrip Susun untuk Radar Pengawas Pantai

2016 ◽  
Vol 13 (2) ◽  
pp. 55
Author(s):  
Fitri Yuli Zulkiflia ◽  
Yuyu Wahyu ◽  
Basari ◽  
Eko Tjipto Raharjo
Keyword(s):  
Return Loss ◽  
Impedance Bandwidth ◽  
Sidelobe Level ◽  
Half Power ◽  
Cst Microwave Studio

Makalah ini membahas pengembangan antena mikrostrip yang disusun secara linier sebanyak empat elemen untuk aplikasi radar pengawas pantai. Teknik pencatuan yang digunakan untuk mencatu antena susun ini adalah proximity coupled. Desain antena menggunakan software CST microwave studio dan dirancang untuk bekerja di frekuensi 9,4 GHz. Hasil simulasi memperlihatkan impedance bandwidth antena pada return loss ≤ -9,54 dB adalah 760 MHz dari  9,34-10,1 GHz dan dari  hasil ukur  adalah 860 MHz dari frekuensi  9,35-10,21 GHz. Di samping itu, hasil simulasi menunjukkan half power beamwidth (HPBW) pada phi=0 sebesar 23,7o dengan sidelobe level (SLL) sebesar -12,03 dB, sementara pada phi=90 diperoleh  HPBW sebesar 77,2o dengan SLL tertekan sampai -19,78 dB. Sebagai tambahan, gain dari antena diperoleh sebesar 11,33 dB.  Adapun  hasil pengukuran menunjukkan hasil HPBW pada phi=0 sebesar 20o dengan SLL  sebesar -18,9 dB dan pada phi=90 diperoleh HPBW sebesar 65o dengan SLL -15,51 dB.

scholarly journals Microstrip Patch Antenna Loaded with Squares Shapes Metamaterial Structure For Bandwidth Improvement and Return loss

2015 ◽  
pp. 315-319
Author(s):  
Rahul Rajoria
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Ground Plane ◽  
Microstrip Patch Antenna ◽  
Impedance Bandwidth ◽  
Metamaterial Structure ◽  
Microstrip Patch ◽  
Rectangular Microstrip Patch Antenna ◽  
Cst Microwave Studio

In this work, The drawback of Patch Antenna was impedance bandwidth. For this purpose, Rectangular microstrip patch antenna loaded with metamaterial structure has been proposed for improving the bandwidth by using CST MICROWAVE STUDIO in this paper. The proposed antenna is designed at a height 3.2 from the ground plane by using CST MICROWAVE STUDIO. The bandwidth of Microstrip patch antenna is 12 .1MHz and return loss is -10.36 dB at a band.The bandwidth of desired antenna is increased up 61.7 MHz at 2.925 GHz and 27 MHz at 1.965 GHz. The return loss of proposed antenna is reduced up to -35.55db at 2.925 GHz and -29 db at 1.965 GHz. This proposed design has small size, easy to fabricate and better directivity.

ANALYSIS OF TAPERED FINLINE IN POWER COMBINER FOR WIDEBAND APPLICATION

2016 ◽  
Vol 78 (6-7) ◽  
Author(s):  
Nur Shaheera Alia Sadick ◽  
Ali Mohamad Zoinol Abidin Abd Aziz ◽  
Badrul Hisham Ahmad ◽  
Mohd Azlishah Othman ◽  
Hamzah Asyrani Sulaiman
Keyword(s):  
Insertion Loss ◽  
Rectangular Waveguide ◽  
Return Loss ◽  
Ultra Wideband ◽  
Antenna Design ◽  
Power Combiner ◽  
Simulation Process ◽  
Design Structure ◽  
Vivaldi Antenna ◽  
Cst Microwave Studio

Tapered finline or slotline array has used in Vivaldi antenna design to produce Ultra-wideband (UWB). This paper focuses to design and analysis the structural of tapered finline in order to achieved wideband in rectangular waveguide power combiner at frequency 0.5 GHz to 6 GHz. There are three main parameters are studying in this paper which are of length of radiation region exponential coefficient at curves of radiation and exponential coefficient at curves of directivity. The design of tapered finline in power combiner is simulated using CST Microwave Studio Software. The simulation process is based on the input return loss at port 1 (S11), input return loss at port 2 (S22), isolation (S21) and insertion loss (S12). By studying the effect of the parameter on the design structure, it can be ensure that the tapered finline structures are suitable in wideband design.

scholarly journals A Wideband Printed Antenna for Covering Major Cellular Bands with a C- Shaped Patch

2012 ◽  
Vol 1 (4) ◽  
pp. 362
Author(s):  
P. Misra ◽  
A. Tripathy
Keyword(s):  
Radiation Pattern ◽  
Return Loss ◽  
Cellular Communication ◽  
Printed Antenna ◽  
Feed Line ◽  
Frequency Coverage ◽  
Simulation Results ◽  
Microstrip Feed Line ◽  
Microstrip Feed ◽  
Cst Microwave Studio

In this paper the design of a new multistandard antenna is proposed suitable for major cellular bands. A C-shaped radiator with a microstrip feed line is proposed which supports major cellular communication band like AWS, DCS, DECT, PCS, PHS, 3G, UMTS, DSR, Wi-Bro, ISM, and DMB in the range of 1.7- 2.9 GHz. The designed antenna is simulated using CST Microwave Studio to achieve such wide frequency coverage. The simulation results of the designed structure in terms of return loss, VSWR and radiation pattern are presented.

scholarly journals A New Compact and Miniaturized GCPW-fed Slotted Rectangular antenna for Wideband UHF FIRD Applications

2017 ◽  
Vol 7 (2) ◽  
pp. 767
Author(s):  
Rachid Dakir ◽  
Jamal Zbitou ◽  
Ahmed Mouhsen ◽  
A. Tribak ◽  
M. Latrach ◽  
...  
Keyword(s):  
Return Loss ◽  
Uhf Rfid ◽  
Radiation Characteristics ◽  
Antenna Structure ◽  
Coplanar Line ◽  
Ground Plan ◽  
Rectangular Patch ◽  
Large Frequency ◽  
Rfid Applications ◽  
Cst Microwave Studio

This paper presents the development of a new miniaturized and compact GCPW-fed slotted rectangular antenna structure reader for wideband UHF RFID applications. The optimized proposed antenna is suitable to operate a large frequency-band range from 0.8GHz to 1.3GHz with a bandwidth of 500MHz with a return loss less than -10dB. The antenna is based on a 1.6mm thickness FR4 epoxy substrate with a reduce dimensions compared to the simple rectangular antenna and size of proposed antenna is 47*40mm2. The new design consists of a compact rectangular patch with symmetric U-shaped slots and I-shaped include a partial ground plan and fed by 50 Grounded coplanar line. The antenna parameters have been investigated and optimized by   using   CST Microwave Studio. To validate the CST Microwave Studio results before the   antenna achievement,   we   have   conducted another study by using ADS. The   final circuit   achieved, measured and validated. Experimental results show that the proposed antenna has good radiation characteristics and operating in UHF-RFID applications.

Sign in / Sign up

Export Citation Format

Share Document