In this paper, a four-parallel-coupled line is applied for the design of a novel filtering single-ended-to-balanced power divider. To facilitate the even- and odd-mode analysis of the symmetric structure, the proposed four-parallel-coupled line is split into two parallel coupled lines, and the closed-form design equations at f0 are given. Moreover, the coupled lines and open-circuited stubs between the four-parallel-coupled line and balanced output ports can realize performances of high-selectivity filtering and enhanced ultra-wideband common-/differential-mode suppression. By regulating two impedances of the OC stubs, three prototypes with different filtering bandwidths are designed and simulated. Among them, the circuit with the high-selectivity is fabricated and measured. Measurements agree well with simulations and ideal results, which verifies the validity of the theoretical derivations and circuit feasibility.
A Filtering Single-Ended-to-Balanced Power Divider with Enhanced Ultra-Wideband Suppression / Pan, Leidan; Wu, Yongle; Wang, Weimin; Piacibello, Anna; Camarchia, Vittorio. - ELETTRONICO. - 1263:(2025), pp. 121-131. (Intervento presentato al convegno SIE 2024 55th Annual Meeting of the Italian Electronics Society tenutosi a Genova (Ita) nel 26-28 June, 2024) [10.1007/978-3-031-71518-1_15].
A Filtering Single-Ended-to-Balanced Power Divider with Enhanced Ultra-Wideband Suppression
Pan, Leidan;Piacibello, Anna;Camarchia, Vittorio
2025
Abstract
In this paper, a four-parallel-coupled line is applied for the design of a novel filtering single-ended-to-balanced power divider. To facilitate the even- and odd-mode analysis of the symmetric structure, the proposed four-parallel-coupled line is split into two parallel coupled lines, and the closed-form design equations at f0 are given. Moreover, the coupled lines and open-circuited stubs between the four-parallel-coupled line and balanced output ports can realize performances of high-selectivity filtering and enhanced ultra-wideband common-/differential-mode suppression. By regulating two impedances of the OC stubs, three prototypes with different filtering bandwidths are designed and simulated. Among them, the circuit with the high-selectivity is fabricated and measured. Measurements agree well with simulations and ideal results, which verifies the validity of the theoretical derivations and circuit feasibility.File | Dimensione | Formato | |
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https://hdl.handle.net/11583/2996192