Band-Pass Filter Microstrip at 3 GHz Frequency Using Square Open-Loop Resonator for S-Band Radar Applications

  Rima Anisa Maulidini (1*), M. Reza Hidayat (2), Teguh Praludi (3)

(1) Faculty of Engineering Universitas Jenderal Achmad Yani - Indonesia
(2) Faculty of Engineering Universitas Jenderal Achmad Yani - Indonesia
(3) Research Center for Electronics and Telecomunnications, Indonesian Institutes of Sciences - Indonesia
(*) Corresponding Author

Received: August 10, 2020; Revised: October 02, 2020
Accepted: November 02, 2020; Published: December 31, 2020

How to cite (IEEE): R. A. Maulidini, M. Hidayat,  and T. Praludi, "Band-Pass Filter Microstrip at 3 GHz Frequency Using Square Open-Loop Resonator for S-Band Radar Applications," Jurnal Elektronika dan Telekomunikasi, vol. 20, no. 2, pp. 53-59, Dec. 2020. doi: 10.14203/jet.v20.53-59


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.



bandpass filter; filter; microstrip; square open-loop resonator

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J. S. Hong, Microstrip Filters for RF/Microwave Applications, 2nd ed. NY: John Wiley & Sons, Inc., 2011.

B. U. Suryaningsih, A. A. Muayyadi, and E. Sulaeman "Perancangan dan realisasi bandpass filter yang bekerja pada frekuensi 3 GHz menggunakan metode hairpin," in e-Proc. Eng., vol. 4, no. 1, 2017, pp. 492-499.

T. Praludi, Y. Sulaeman, Y. Taryana, and B. E. Sukoco, "Bandpass filter microstrip using octagonal shape for S-band radar," in 2017 Int. Conf. Radar Antenna Microw. Electron. Telecommun., 2017. Crossref

D. Adithama, H. Wijanto, Y. Wahyu, "Filter bandpass hairpin dengan defected ground structure untuk synthetic aperture radar 1.27 GHz," in e-Proc. Eng., vol. 4, no. 3, 2017, p. 3422.

D. A. Letavin, "Bandpass filters on U-shaped resonator," in 19th Int. Conf. Micro/nanotechnol. Electron Devices EDM 2018, 2018.

M. Khajavi, and M. Shakiba, "Compact microstrip dual-band bandpass filter using step impedance resonators," in 27th Iranian Conf. Elect. Eng., 2019. Crossref

R. Y. Aditya, and M. Alaydrus, “Perancangan mikrostrip band-pass filter pada frekuensi 3.3 GHz dengan menggunakan defected ground structure”, Universitas Mercu Buana, 2016.

A. B. Santiko, Y. S. Amrullah, Y. Wahyu, M. I. Maulana and B. Setia, “Design and realization of coupled line bandpass filter using compact structure at frequencies of 3300 MHz – 3400 MHz for WiMAX application,” Jurnal Elektronika Telekomunikasi vol. 16, no. 1, pp. 11-14, 2016. Crossref

N. A. D. Ayuni, A. Atmaja, and K. Wardani, "Rancang bangun antena mikrostrip circular patch metode array 4 elemen sebagai penerima TV UHF," Jurnal Ilmu Pengetahuan Teknologi, vol. 2, no. 1, pp. 22-31, 2018.

Pattimura University Ambon, Proceedings the 4th International Conference on Basic Sciences 2018: The Development of Sciences and Technology in Improving Natural and Cultural Resources. Ambon: Universitas Pattimura Ambon, 2019.

E. Hammerstad and O. Jensen, “Accurate models for microstrip computer-aided design,” in 1980 IEEE MTT-S Int. Microw. Symp. Dig., 1980, pp. 407-409. Crossref

H. A. Wheeler, “Transmission-line properties of parallel strips separated by a dielectric sheet”, IEEE Trans. Microw. Theory Techniques, vol. 13, no. 2, 1965. Crossref

E. O. Hammerstad, "Equations for microstrip circuit design," in 1975 5th European Microw. Conf., Germany, 1975.

Mini-Circuits, Appl. Note DG03-111, p. 111

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