scholarly journals Design and Implementation of Chebyshev Band Pass Filter with M-Derived Section in Frequency Band 88 - 108 MHz

2019 ◽  
Vol 8 (1) ◽  
pp. 7-11
Author(s):  
Dini Novarianti
Keyword(s):  
Insertion Loss ◽  
Shape Factor ◽  
Bandpass Filter ◽  
Large Element ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Radio Broadcasting ◽  
Fm Radio ◽  
High Level ◽  
Chebyshev Filter

FM radio broadcasting is a wireless communication system. Transmission in the frequency 88-108 MHz requires a bandpass filter to avoid interference with frequencies adjacent to the radio transmitter. The type of filter that has a fairly good performance is the Chebyshev filter with a fairly high level of steepness. However, to get a high level of steepness, a fairly large element value is required. So, in this study adding the m-derived series to give a steeper filter response without adding more element values.The purpose of this thesis is to determine the effect of adding an m-derived section to the chebyshev bandpass filter. The parameters tested are passband bandwidth, stopband bandwidth, shape factor, insertion loss, roll off, and power attenuation when used on the transmitter.Based on the measurements that have been made, it can be seen that the bandpass filter without m-derived has a maximum insertion loss value of 7 dB and a minimum insertion loss of 9 dB, while the bandpass filter with m-derived is 11 dB and 13. In the bandpass filter without m-derived and m-derived have a passband bandwidth of 27 MHz and 29 MHz and a stopband bandwidth of 70 MHz and 50 MHz. So that the bandpass filter without derived and m-derived has a shape factor value of 2.59 and 1.72. In the implementation using the transmitter, the bandpass filter without m-derived has a power attenuation of 2.53 dB while the m-derived bandpass filter has an attenuation of 1.5 dB.

scholarly journals Dual band Stepped Impedance Interdigital Microstrip Filter for LTE Bands

2019 ◽  
Vol 4 (7) ◽  
pp. 28-30
Author(s):  
William Johnson ◽  
Cavin Roger Nunes ◽  
Savio Sebastian Dias ◽  
Siddhi Suresh Parab ◽  
Varsha Shantaram Hatkar
Keyword(s):  
Insertion Loss ◽  
Bandpass Filter ◽  
Dual Band ◽  
Band Pass Filter ◽  
Coupled Resonators ◽  
Microstrip Filter ◽  
Resonant Frequencies ◽  
Pass Filter ◽  
Band Pass ◽  
Low Insertion Loss

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.

scholarly journals Implementasi bandpass filter m-derived pada pemancar radio FM

JURNAL ELTEK ◽  
2021 ◽  
Vol 19 (2) ◽  
pp. 32
Author(s):  
Koesmarijanto Koesmarijanto ◽  
Azam Muzakhim Imammudin ◽  
Hadiwiyatno Hadiwiyatno
Keyword(s):  
Insertion Loss ◽  
Bandpass Filter ◽  
Frequency Range ◽  
Transmit Power ◽  
Transmitter Power ◽  
Fm Radio ◽  
Radio Transmitters ◽  
High Level ◽  
Radio Broadcast ◽  
Filter Response

Pemancar siaran radio FM adalah salah satu sistem komunikasi nirkabel, bekerja rentang frekuensi 88-108 MHz membutuhkan sebuah filter bandpass untuk menghindari adanya interferensi dengan frekuensi yang berdekatan dengan pemancara radio. Jenis filter yang memiliki performansi cukup baik adalah filter dengan tingkat kecuraman yang cukup tinggi. Namun, untuk mendapatkan tingkat faktor kecuraman yang tinggi dengan menambah beberapa elemen. Maka, pada penelitian ini menambahkan rangkaian m-derived utnuk memberikan respon filter yang lebih curam tanpa menambahkan nilai elemen yang banyak. Tujuan penelitian ini mengetahui perbandingan daya pemancar tanpa filter, dengan bandpass filter, dan menggunakan bandpass filter m-derived. Hasil pengujian daya pancar tanpa filter sebesar 2 Watt, dengan menggunakan bandpass filter daya pancar sebesar 1,05 Watt, sedangkan dengan menggunakan bandpass filter m-derived daya pancar sebesar 1,4 Watt. Kesimpulannya pelemahan (insertion loss) pada Bandpass Filter  sebesar 2,53 dB  sedangkan pelemahan (insertion loss) pada BPF m-derived section sebesar 1,54 dB dengan menambahkan BPF m-derived section memperbaiki daya keluaran pemancar lebih besar 0,35 W atau 1,01 dB dibandingkan dengan pemancar yang menggunakan BPF tanpa m-derived.   FM radio broadcast transmitter is a wireless communication system, with frequency range of 88-108 MHz requires a bandpass filter to avoid interference with frequencies adjacent to radio transmitters. The type of filter that has a fairly good performance is a filter with a fairly high level of steepness. However, to get a high level of steepness factor by adding some elements. So, in this study, we added an m-derived circuit to provide a steeper filter response without adding a lot of element values. The purpose of this study is to compare the transmitter power without a filter, with a bandpass filter, and using an m-derived bandpass filter. The result of testing the unfiltered transmit power is 2 Watt, using a bandpass filter the transmit power is 1.05 Watt, while using the m-derived bandpass filter the transmit power is 1.4 Watt. In conclusion, the insertion loss in the Bandpass Filter is 2.53 dB, while the insertion loss in the BPF m-derived section is 1.54 dB by adding the BPF m-derived section to improve the transmitter output power by 0.35 W or 1 .01 dB compared to transmitters using BPF without m-derived.

scholarly journals Design and Realization of a Compact High-Frequency Band-Pass Filter with Low Insertion Loss Based on a Combination of a Circular-Shaped Spiral Inductor, Spiral Capacitor and Interdigital Capacitor

Electronics ◽  
2018 ◽  
Vol 7 (9) ◽  
pp. 195 ◽  
Author(s):  
Ki-Hun Lee ◽  
Eun-Seong Kim ◽  
Jun-Ge Liang ◽  
Nam-Young Kim
Keyword(s):  
Insertion Loss ◽  
Return Loss ◽  
Bandpass Filter ◽  
Center Frequency ◽  
Spiral Inductor ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Interdigital Capacitor ◽  
In Series ◽  
Band Pass

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.

scholarly journals Riset Band Pass Filter Mikrostrip – State of the Art

2017 ◽  
Vol 6 (2) ◽  
pp. 123
Author(s):  
Mudrik Alaydrus
Keyword(s):  
Insertion Loss ◽  
Bandpass Filter ◽  
State Of The Art ◽  
Open Loop ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Transmission Zeros ◽  
Band Pass

Riset bandpass filter telah mengalami perjalanan panjang, seiring dengan perkembangan teknologi wireless dan aplikasi sensor serta radar. Sampai dengan pertengahan 2015 ditemukan sangat banyak riset tentang bandpass filter di pelbagai publikasi yang ada. Dasar perancangan bandpass filter didominasi dengan metoda insertion loss yang menggunakan aproksimasi Butterworth, Chebyshev dan Elliptis. Realisasi dari elemen yang muncul dari aproksimasi di atas diimplementasikan dalam bentuk penggandengan beberapa resonator. Resonator yang tergandeng ujung (end-coupled) dan tergandeng parallel (parallel-coupled) memberikan realisasi fisik dari penggandengan langsung, sedangkan untuk penggandengan silang digunakan open-loop resonator. Modifikasi filter dengan open-loop resonator digunakan untuk merancang dual bandpass filter dengan mengorbankan hilangnya transmission zeros.

scholarly journals Rancang Bangun Band Pass Filter Frekuensi 1.27 GHz untuk Teknologi Synthetic Aperture Radar

2018 ◽  
Vol 5 (2) ◽  
pp. 149
Author(s):  
RIFAN FITRIANTO ◽  
YUYUN SITI ROHMAH ◽  
EFA MAYDHONA SAPUTRA
Keyword(s):  
Insertion Loss ◽  
Return Loss ◽  
Bandpass Filter ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Measurement Results ◽  
Epoxy Material ◽  
It Support ◽  
Band Pass ◽  
Aperture Radar

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

scholarly journals CSRR-DGS Bandpass Filter Based on Half Mode Substrate Integrated Waveguide for X-Band Applications

2021 ◽  
Vol 10 (3) ◽  
pp. 39-42
Author(s):  
B. Fellah ◽  
N. Cherif ◽  
M. Abri ◽  
H. Badaoui
Keyword(s):  
Insertion Loss ◽  
Bandpass Filter ◽  
Band Pass Filter ◽  
Substrate Integrated Waveguide ◽  
Defected Ground Structure ◽  
Pass Filter ◽  
Compact Component ◽  
X Band ◽  
Compact Size ◽  
Simulation Results

In this paper, a half mode substrate integrated waveguide (HMSIW) bandpass filter using defected ground structure cells (DGS) is proposed. By using the periodic square CSRR resonant properties of DGS according to design requirement, an X-band band-pass filter is designed and analyzed to meet compact size, low insertion loss, and high rejection. The simulation results obtained by CST in X-band show that the proposed filter is characterized by a large transmitted bandwidth of about 1.38 GHz from 13.03 to 14.41 GHz. The higher simulated insertion loss is about −2.6 dB and the lower return loss is about −34 dB. The proposed filter size is 9.50 × 38.00 mm2 which make it a compact component. The structure is optimized using CST simulator. For the proposal validation, the simulation results is compared by HFSS. The simulation results are in good agreement for the   two simulator.

scholarly journals Study of Microstrip Dual-Band Band Pass Filter

2021 ◽  
Author(s):  
Anciline V ◽  
Maheswari S
Keyword(s):  
Wireless Communication ◽  
Insertion Loss ◽  
Communication System ◽  
Dual Band ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Wireless Communication System ◽  
Band Pass ◽  
Main Component

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.

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 ◽  
...  
Keyword(s):  
Insertion Loss ◽  
Short Range ◽  
Return Loss ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Band Frequency ◽  
Measurement Results ◽  
Band Pass ◽  
Bandwidth Analysis ◽  
K Band

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.

Reconfigurable dual-mode band-pass filter with switchable bandwidth using PIN diodes

2014 ◽  
Vol 7 (6) ◽  
pp. 655-660 ◽  
Author(s):  
Photos Vryonides ◽  
Symeon Nikolaou ◽  
Sangkil Kim ◽  
Manos M. Tentzeris
Keyword(s):  
Insertion Loss ◽  
Center Frequency ◽  
Band Pass Filter ◽  
Dual Mode ◽  
Pin Diodes ◽  
Pass Filter ◽  
Physical Size ◽  
Wireless Applications ◽  
Band Pass ◽  
Dc Bias

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.

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