Title:	A compact lowpass filter for satellite communication systems based on transfer function analysis
Authors:	Lalbakhsh, A. Jamshidi, Mohammad Siahkamari, Hesam Ghaderi, Amirhossien Golestanifar, Alireza Linhart, Richard Talla, Jakub Simorangkir, Roy B.V.B. Mandal, Kaushik
Citation:	LALBAKHSH, A., JAMSHIDI, M., SIAHKAMARI, H., GHADERI, A., GOLESTANIFAR, A., LINHART, R., TALLA, J., SIMORANGKIR, R. B., MANDAL, K. A compact lowpass filter for satellite communication systems based on transfer function analysis. AEU-International journal of electronics and communications, 2020, roč. 124, č. September 2020, s. 1-7. ISSN 1434-8411.
Issue Date:	2020
Publisher:	Elsevier
Document type:	článek article
URI:	2-s2.0-85087694419 http://hdl.handle.net/11025/39801
ISSN:	1434-8411
Keywords in different language:	low pass filters;microwave filters;resonators;satellite communication systems
Abstract in different language:	This paper presents a very efficient design procedure for a high-performance microstrip lowpass filter (LPF). Unlike many other sophisticated design methodologies of microstrip LPFs, which contain complicated configurations or even over-engineering in some cases, this paper presents a straightforward design procedure to achieve some of the best performance of this class of microstrip filters. The proposed filter is composed of three different polygonal-shaped resonators, two of which are responsible for stopband improvement, and the third resonator is designed to enhance the selectivity of the filter. A holistic performance assessment of the proposed filter is presented using a Figure of Merit (FOM) and compared with some of the best filters from the same class, highlighting the superiority of the proposed design. A prototype of the proposed filter was fabricated and tested, showing a 3-dB cut-off frequency (fc) at 1.27 GHz, having an ultrawide stopband with a suppression level of 25 dB, extending from 1.6 to 25 GHz. The return loss and the insertion loss of the passband are better than 20 dB and 0.25 dB, respectively. The fabricated filter has a high FOM of 76331, and its lateral size is 22.07 mm x 7.57 mm.
Rights:	Plný text je přístupný v rámci univerzity přihlášeným uživatelům. © Elsevier
Appears in Collections:	Články / Articles (KEI) Články / Articles (RICE) Články / Articles (KEV) OBD

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