scholarly journals Design and Realization of Band Pass Filter in K-Band Frequency for Short Range Radar Application

2021 ◽  
Vol 21 (1) ◽  
pp. 1
Author(s):  
Arie Setiawan ◽  
Taufiqqurrachman Taufiqqurrachman ◽  
Adam Kusumah Firdaus ◽  
Fajri Darwis ◽  
Aminuddin Rizal ◽  
...  

Short range radar (SRR) uses the K-band frequency range in its application. The radar requires high-resolution, so the applied frequency is 1 GHz wide. The filter is one of the devices used to ensure only a predetermined frequency is received by the radar system. This device must have a wide operating bandwidth to meet the specification of the radar. In this paper, a band pass filter (BPF) is proposed. It is designed and fabricated on RO4003C substrate using the substrate integrated waveguide (SIW) technique, results in a wide bandwidth at the K-band frequency that centered at 24 GHz. Besides the bandwidth analysis, the analysis of the insertion loss, the return loss, and the dimension are also reported. The simulated results of the bandpass filter are: VSWR of 1.0308, a return loss of -36.9344 dB, and an insertion loss of -0.6695 dB. The measurement results show that the design obtains a VSWR of 2.067, a return loss of -8.136 dB, and an insertion loss of -4.316  dB. While, it is obtained that the bandwidth is reduced by about 50% compared with the simulation. The result differences between simulation and measurement are mainly due to the imperfect fabrication process.

2020 ◽  
Vol 20 (2) ◽  
pp. 53
Author(s):  
Rima Anisa Maulidini ◽  
M. Reza Hidayat ◽  
Teguh Praludi

In telecommunication, filters are often used to pass the desired frequency. One of them is the Band-Pass Filter (BPF) which is passing signals between the upper cut-off frequency and the lower cut-off frequency. This research aims to make a band-pass filter that can pass 3 GHz frequency with a bandwidth of 200 MHz. This filter is designed with a square open-loop resonator simulated using Advanced Design System (ADS) software. The filter is made using FR 4-epoxy substrates with a dielectric constant (ε ) of 4.6 and substrate thickness (h) of 1.6 mm. Based on the simulation results obtained in the form of a comparison graph between the response of magnitude to frequency, it shows that the value of the return loss (S 11 ) parameter of -23.549 dB, insertion loss (S 21 ) parameter value of -1.397 dB, and a slightly shifted middle frequency of 2.890 GHz. Then for the measurement results obtained a parameter value return loss (S 11 ) of -16.364 dB, parameter value insertion loss (S 21 ) of -3.561 dB with a center frequency of 3.185 GHz.


Author(s):  
RIFAN FITRIANTO ◽  
YUYUN SITI ROHMAH ◽  
EFA MAYDHONA SAPUTRA

ABSTRAKSynthetic Apertur Radar (SAR) adalah teknologi radar yang digunakan untuk pengambilan gambar suatu objek dalam bentuk 2 atau 3 dimensi (penginderaan jarak jauh). Sistem tersebut  bekerja pada rentang frekuensi 1.265 sampai dengan 1.275 GHZ dengan frekuensi tengahnya 1.27 GHz. Agar sistem SAR ini dapat bekerja dengan optimal, dibutuhkan suatu perangkat filter yang dapat meloloskan frekuensi yang diinginkan. Sebelumnya sudah ada penelitian yang membuat perangkat ini di band frekuensi yang sama namun menggunakan bahan duroid 5880 dan resonator berbentuk kotak. Bandpass filter Pada penelitian ini dirancang dengan menggunakan metode Hairpin line dan bahan epoxy FR4. Hasil pengukuran menunjukkan nilai Return Loss masih cukup besar yaitu -9.33 dB dan nilai Insertion Loss minimal sebesar -13.51 dB.Kata kunci: Syntethic Aperture Radar, Band Pass Filter, Hairpin-lineABSTRACTSynthetic Aperture Radar (SAR) is a radar technology that used for taking an object in the form of 2 or 3 dimensions (remote sensing). It works in the frequency range 1.265 to 1.275 GHZ with a middle frequency of 1.27 GHz. SAR system can work optimally if it support a filter device that can pass the desired frequency. Previously there has been research that makes this device in the same frequency band but using 5885 duroid material and square resonator. Bandpass filter In this study designed using Hairpin line method and FR4 epoxy material. The measurement results of Return Loss values are still quite large  arround -9.33 dB and Insertion Loss minimum at -13.51 dB.Keywords: Syntethic Aperture Radar, Band Pass Filter, Hairpin line


2018 ◽  
Vol 7 (2.29) ◽  
pp. 711 ◽  
Author(s):  
Adam Faroqi ◽  
Muhammad Ali Ramdhani ◽  
Dzikron Dwi Andika ◽  
Suryadi Soedarsono

Radar is an important component for people. A number of functions could be taken into account on a various aspect in term of quantifying the distance of a specific object, developing a map, and/ or forecasting climate. Generally, one of the main instruments within a radar is a filter. The aim of this study is to design a simple Band Pass Filter which able to be effectively worked on frequency 2.75–2.85 GHz. The filter is designed at the mid frequency of 2.8 GHz with ≤ -20 dB of Return Loss Range, ≥ -3 dB for Insertion Loss, and 100 MHz for Bandwidth, then it is manufactured into a Square Open-Loop Resonator microstrip. The filter uses Rogers R04035B for its substrate with 3.48 of Dielectric Constant Values  and 1.524 mm of Substrate Thickness (h). The radar’s filter is simulated by a software of Computer System Technology (CST) suite 2015. The simulation results -31.608995 dB for Return Loss Range, -2.0529871 dB, and 100 MHz for Insertion Loss and Bandwidth respectively. By the end of this process, this instrument is applied and a Network Analyzer is then utilized to get a comparable output. It produces a quite different ranges of -23.519 dB for Return Loss, -2,183 dB for Insertion Loss and 90 MHz for Bandwidth.  The study results a design of radar’s simple band pass filter which work effectively on frequency 2.75–2.85 GHz.  


Electronics ◽  
2018 ◽  
Vol 7 (9) ◽  
pp. 195 ◽  
Author(s):  
Ki-Hun Lee ◽  
Eun-Seong Kim ◽  
Jun-Ge Liang ◽  
Nam-Young Kim

In this study, the proposed bandpass filter (BPF) connects an interdigital and a spiral capacitor in series between the two symmetrical halves of a circular intertwined spiral inductor. For the mass production of devices and to achieve a higher accuracy and a better performance compared with other passive technologies, we used integrated passive device (IPD) technology. IPD has been widely used to realize compact BPFs and achieve the abovementioned. The center frequency of the proposed BPF is 1.96 GHz, and the return loss, insertion loss and transmission zero are 26.77 dB, 0.27 dB and 38.12 dB, respectively. The overall dimensions of BPFs manufactured using IPD technology are 984 × 800 μ m 2 , which is advantageous for miniaturization and integration.


Author(s):  
Arfan Ridwan Hartawan ◽  
Trasma Yunita ◽  
Levy Olivia Nur

Filter adalah suatu perangkat dalam susunan elektronika telekomunikasi yang berfungsi untuk menyeleksi sinyal tertentu. Hairpin filter adalah salah satu jenis filter yang sering digunakan pada frekuensi microwave. Filter ini dibentuk dari resonator filter edge-couple dengan membalik ujung resonator ke bentuk �U�, ini tentunya akan mengurangi panjang dan meningkatkan aspek rasio secara berarti dalam susunan mikrostipnya. Dalam metode hairpin terdapat saluran terkopel dan saluran tidak terkopel. Perancangan filter BPF dengan metode hairpin ini bekerja pada frekuensi X-Band (9770 MHz) berbasis mikrostrip untuk radar cuaca. Pada realisasi filter ini mempunyai nilai bandwidth 230 MHz dengan insertion loss dibawah -3 dB, return loss -13 dB, dan VSWR = 1,56.


TRANSIENT ◽  
2019 ◽  
Vol 7 (3) ◽  
pp. 715
Author(s):  
Ifki Arifatul Utami ◽  
Teguh Prakoso ◽  
Imam Santoso

Pita frekuensi 5,8 GHz (5725 – 5825 MHz) telah ditetapkan oleh Kementerian Komunikasi dan Informasika Republik Indonesia untuk layanan pita lebar nirkabel. Layanan Wireless Local Area Network (WLAN) juga menggunakan pita frekuensi ini. Sebagaimana layaknya sistem komunikasi nirkabel, perangkat keras pada pita frekuensi ini juga memerlukan tapis lolos rentang (band-pass filter, BPF) untuk memilih frekuensi serta menekan derau dan interferensi. Tugas Akhir ini merancang tapis mikrostrip parallel coupled line dengan tanggapan lolos rentang. Bahan yang digunakan adalah Rogers RO4350B (permitivitas relatif 3,66 pada frekuensi  8-40 GHz dan rugi-rugi dielektrik 0,0037 diukur pada frekuensi 10 GHz). Spesifikasi tapis diturunkan dari analisis terhadap datasheet tapis komersial yaitu lebar pita 100 MHz, nilai insertion loss <1 dB dan return loss ≥11 dB, orde tiga polynomial Chebyshev. Perangkat lunak yang digunakan adalah AWR Design Environment 10 untuk menentukan skematika rangkaian dan nilai komponen, serta simulator elektromagnetik CST Microwave Studio 2014 untuk verifikasi desain. Proses optimasi desain untuk mencapai spesifikasi dibantu dengan Design of Experiment (DOE). Hasil simulasi DOE diperoleh nilai komponen baru yaitu, W dan  masing-masing sebesar 1,61 mm dan 7,23 mm. Dengan nilai komponen baru tersebut diperoleh nilai insertion loss dan return loss masing-masing sebesar 1,51 dB dan 29,32 dB, dan lebar pita sebesar 67 MHz. 


2019 ◽  
Vol 4 (7) ◽  
pp. 28-30
Author(s):  
William Johnson ◽  
Cavin Roger Nunes ◽  
Savio Sebastian Dias ◽  
Siddhi Suresh Parab ◽  
Varsha Shantaram Hatkar

In this paper, a dual band microstrip bandpass filter has been proposed utilizing three edge coupled resonators, interdigital stubs and DGS technique. To enhance the coupling degree, two interdigital coupled feed lines are employed in this filter. The suppressing cell consists of stepped impedance ladder type resonators, which provides a wide stopband. The proposed suppressing cell has clear advantages like low insertion loss in the passband and suitable roll off. The frequency response of the filter looks like a standard dual band band-pass filter. The filter exhibits a dual passband with resonant frequencies at 2.2GHz and 3.45GHz covers LTE1 and LTE22 bands.


2021 ◽  
Author(s):  
Anciline V ◽  
Maheswari S

The main component widely used in wireless communication system is dual-band band pass filter. This band pass filter is intended in many ways and some are microstrip, waveguide, etc. The dual-band will works in two different frequency ranges which will provide a huge application. This paper compares different microstrip dual-band band pass filter based on the techniques, insertion loss, frequency, etc.


2014 ◽  
Vol 7 (6) ◽  
pp. 655-660 ◽  
Author(s):  
Photos Vryonides ◽  
Symeon Nikolaou ◽  
Sangkil Kim ◽  
Manos M. Tentzeris

A reconfigurable band-pass filter with switchable bandwidth, for wireless applications is demonstrated using a dual-mode microstrip square-loop resonator. The proposed filter has been designed on Rogers RO4003C and achieves switchable bandwidth by changing the length of two tuning stubs with the implementation of two strategically placed p-i-n diodes as switching elements. The filter was designed with a center frequency of 2.4 GHz and the two distinct operation states have bandwidths, 113 MHz (4.8%) with an insertion loss of 1.2 dB and 35 MHz (1.5%) with an insertion loss of 1.5 dB. The physical size of the fabricated reconfigurable filter including the implementation of the DC bias lines is comparable to the size of a conventional filter.


Author(s):  
Ramesh K. Pokharel ◽  
Xin Liu ◽  
R. Dong ◽  
A.B.A. Dayang ◽  
Haruichi Kanaya ◽  
...  

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