| Autor: |
Yerzhan, Assel, Nakisbekova, Balausa, Manbetova, Zhanat, Boykachev, Pavel, Imankul, Manat, Dzhanuzakova, Raushan, Shedreyeva, Indira, Karnakova, Gaini |
| Předmět: |
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| Zdroj: |
International Journal of Electrical & Computer Engineering (2088-8708); Dec2024, Vol. 14 Issue 6, p6508-6518, 11p |
| Abstrakt: |
This research addresses the critical challenge of broadband matching in radio engineering, focusing on enhancing phase-frequency response (PFC) linearity across wide frequency bands. A novel approach, utilizing modified Chebyshev functions, demonstrates significant potential in reducing phase distortions within 5G technology applications. Unlike traditional Chebyshev functions, this method incorporates strategically placed transmission zeros--complex conjugate pairs on the s-variable complex plane--without increasing the filter circuit's order. This innovation results in a low-order filter circuit characterized by uniform phase response and group delay characteristics (GDT), offering an effective solution for matching circuit design with less phase-frequency distortion and improved group delay uniformity across diverse load conditions. The modified Chebyshev approximation outperforms its classical counterpart in both phase linearity and selectivity within the 1 to 1.2 cutoff frequency range. This enhancement is crucial for the development of low-frequency filters, with broader implications for creating high-frequency, band-pass, and band-stop filters via known frequency transformations. Empirical results validate the proposed method's reliability and effectiveness, marking a significant advancement in the field of radio engineering by addressing broadband matching challenges with increased efficiency and simplified design implementations. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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