Perancangan Bandpass Filter Pita Sempit pada Frekuensi L-Band untuk Aplikasi Synthetic Aperture Radar (SAR)
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Abstract
Pada sistem Synthetic Aperture Radar (SAR), lebar pita menentukan resolusi yang diinginkan. Jika lebar pita sempit, maka resolusi yang didapatkan akan tinggi sehingga objek yang diamati akan lebih presisi. Untuk mendapatkan performa tersebut, dibutuhkan filter yang dapat menjaga lebar pita dari keluaran generator sinyal Chirp. Penelitian ini merancang filter dengan selektivitas tinggi pada frekuensi 1,27 GHz dengan lebar pita sebesar 10 MHz. Dengan karakteristik tersebut, perancangan filter dapat menggunakan resonator berbentuk kotak karena dapat menghasilkan lebar pita yang sempit. Dari hasil perancangan menggunakan duroid 5880 dengan permitivitas relative sebesar 2,2 didapatkan respon frekuensi pada 1,27 GHz dengan nilai S11 sebesar -36,25 dB dan nilai S21 sebesar -0,92 dB. Untuk lebar pita pada rentang frekuensi 1,265 - 1,275 GHz didapatkan nilai S11 dan S21 secara berurutan sebesar -14,37 dB dan -1,09 dB serta -14,43 dB dan -1,08 dB
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References
[2] J. Tetuko Sri Sumantyo, "Development of Circularly Polarized Synthetic Aperture Radar ( CP-SAR ) Onboard Small Satellite," in IGARSS, 2011, pp. 929-932.
[3] M. Schultz, "Synthetic Aperture Radar Imaging Simulated in MATLAB," California Polytechnic State University, 2009.
[4] C. C. Yu and K. Chang, "Novel compact elliptic-function narrow-band bandpass filters using microstrip open-loop resonators with coupled and crossing lines," IEEE Trans. Microw. Theory Tech., vol. 46, no. 7, pp. 952-958, 1998.
[5] ORARI, "Keputusan Ketua Umum Organisasi Amatir Radio Indonesia Nomor KEP-065/OP/KU/2009 tentang Pembagian dan Penggunaan Segmen Band Frekuensi Amatir Radio (Bandplan)," pp. 1-9, 2009.
[6] D. W. Astuti, Juwanto, and M. Alaydrus, "A Bandpass Filter Based on Square Open Loop Resonator at 2.45 GHz," in 3rd International Conference on Instrumentation, Communicatins, Information Technology, and Biomedical Engineering (ICICI-BME), 2013, pp. 147-151.
[7] M. Dousti, P. Taheri, S. Sadi, and M. Zamani, "A Novel Miniaturized Narrow Band Bandpass Filter Utilizing Microstrip Open-loop Ring Resonators for Narrow-band Applications," in Progress in Electromagnetics Research Symposium Proceedings, 2012, pp. 1415-1419.
[8] S. Arain, M. A. B. Abassi, S. Nikolaou, and P. Vryonides, "A square ring resonator bandpass filter with asymmetrically loaded open circuited stubs," in 2016 5th International Conference on Modern Circuits and Systems Technologies, MOCAST 2016, 2016.
[9] M. P. Manggala, H. Wijanto, and B. Syihabuddin, "A study of square loop resonator filter at 2350 MHz for nanosatellite application," in Proceeding of 2015 1st International Conference on Wireless and Telematics, ICWT 2015, 2016.
[10] M. D. Pozar, Microwave Engineering 4th Edition, 4th ed. New York: John Wiley & Sons, Inc., 2012.
[11] C. Bowick, J. Blyler, and C. Ajluni, "RF Circuit Design," RF Circuit Des., 2008.
[12] K. Chang and L. H. Hsieh, Microwave Ring Circuits and Related Structures, 2nd Editio. John Wiley & Sons, Inc., Publication, 2004.
[13] R. Corporation, "RT/duroid ® 5870 /5880 Datasheet," pp. 100-101, 2016.