Rancang Bangun Tuneable Bandpass Filter Combline untuk VHF Air Ground Radio Communication
Abstract
Aviation radio communication services between Air Traffic Control and pilots must be maintained in good condition without interruption because flight safety is the main priority. The goal of the research is to reduce unwanted frequency harmonics generated from the transmitter so that the effect of frequency interference on adjacent channels can be reduced. This tool will only miss the expected frequency. This bandpass filter is set up carefully to be able used in the VHF Air Ground Communication frequency range, namely 118 – 137 MHz with a tunable combline model which has high selectivity in the frequency channel used. This research method is the design and analysis of a tool consisting of several cylindrical rod transmission lines (slabline) connected to ground at one end and a variable capacitor attached along with ground at the other end. The simulation results and measurements of insertion loss (S21) and return loss (S11) parameters still meet design standards in all VHF A/G frequency ranges. Equipment performance was tested with a working frequency of 120.0 MHz on VHF AG radio transmitter equipment Brand Icom A-120 with a power of 9 Watts, Brand Rohde & Swarch SU4200 with a power of 5 Watts, and Dittel FSG-2T with an output power of 3 Watts. Test results using the equipment can still be used with VSWR results still less than 2 and a decrease in power output of less than 20% of the nominal power.
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References
Arfiyan, S., Wildan, M., & Arnas, Y. (2022). Rancangan Narrow Width Bandpass Filter dengan Chebyshev Orde III untuk Receiver VHF Air Ground Radio Communication di Bandara Internasional Hang Nadim Batam. 01(01), 2–9.
Ayu, I., & Oka, M. (2014). Rancangan Band Pass Filter Pada Komunikasi VHF Air To Ground di Bandara Budiarto dengan menggunakan Komponen Lumped Orde Tiga. National Conference on Industrial Electrical and Electronics (NCIEE) Proceedings, 3, 116–120.
Firmansyah, T., Harsojo, D., Fatonah, F., Aziz, A., & Banten, T. (2015). Rancangan Dual Band Cascode Band Pass Filter untuk Perangkat Tower Set Bandara Budiarto. 4(1), 12–17.
G. Matthaei, E.M.T. Jones, L. Y. (1980). Microwave filters, impedance-matching networks, and coupling structures. Artech House.
Hong, J., & Lancaster, M. J. (2001). Microstrip Filters for RF / Microwave (Vol. 7). John Wiley & Sons. Inc.
Icao. (2002). Aeronautical Telecommunications. Volume II, October 2001, 3–14.
Jarry, P., & Beneat, J. (2008). Advanced Design Techniques and Realizations of Microwave and RF Filters. Wiley-IEEE Press. https://ieeexplore.ieee.org/servlet/opac?bknumber=5236479
Kholistianingsih, Sudaryanto, E., & Maulana, M. I. (2022). Analisis Efektivitas Penggunaan Peralatan VHF- A/G yang dilengkapi dengan Cavity Filter di Perum LPPNPI KCP Cilacap. TEODOLITA : Media Komunikasi Ilmiah Dibidang Teknik, 23(2), 96–113. https://doi.org/10.53810/jt.v23i2.462
Peraturan Direktur Jenderal Perhubungan Udara Nomor : KP 103 Tahun 2015 Tentang Standar Teknis dan Operasi (Manual Of Standard CASR 171-02) Spesifikasi Teknis Fasilitas Telekomunikasi Penerbangan. (n.d.).
Pozar, D. M. (2011). Microvawe Enginering (4th ed.). Wiley.
Rezaee, S., & Memarian, M. (2021). A Compact Microstrip Combline Filter for Microwave S-band. 2021 29th Iranian Conference on Electrical Engineering (ICEE), 891–894. https://doi.org/10.1109/ICEE52715.2021.9544407
Sitopu, M. widasari, & Cahyadi, C. I. (2022). Perbaikan Interferensi Gelombang RF antara VHF APP dan VHF ER Menggunakan Cavity Filter (Studi Kasus Bandara Sultan Syarif Kasim II Pekan Baru). Jurnal Penelitian Politeknik Penerbangan Surabaya, 7(3). https://doi.org/https://doi.org/10.46491/jp.v7i3.1150
Sugiyono. (2018). Metode Penelitian Kuantitatif, Kualitatif dan R&D. Alfabeta.
Triprijooetomo, T., & Supriyanto, T. (2016). Perancangan Wideband Band Pass Filter (BPF) dengan Metamaterial Mikrostrip Frekuensi 1,78 GHz – 3,38 GHz. Setrum : Sistem Kendali-Tenaga-Elektronika-Telekomunikasi-Komputer, 4(1), 18. https://doi.org/10.36055/setrum.v4i1.461
Wibisono, G., Wildan, M., Wahyudi, J., Widoro, E., & Firmansyah, T. (2021). Co-design Structure of Dual-Band LNA and Dual-Band BPF for Radio Navigation Aid Application. Wireless Personal Communications, 116. https://doi.org/10.1007/s11277-020-07754-9
Zakharov, A., & Ilchenko, M. (2020). Coupling Coefficients Between Resonators in Stripline Combline and Pseudocombline Bandpass Filters. IEEE Transactions on Microwave Theory and Techniques, 68(7), 2679–2690. https://doi.org/10.1109/TMTT.2020.2988866
Zeng, K., Psychogiou, D., & Peroulis, D. (2015). A VHF tunable lumped-element filter with mixed electric-magnetic couplings. 2015 IEEE 16th Annual Wireless and Microwave Technology Conference (WAMICON), 1–4. https://doi.org/10.1109/WAMICON.2015.7120421
Copyright (c) 2024 Muhammad Arif Sulaiman, Toni, Muh Wildan, Quwarazmi Golddin Al Farraz
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