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Dual-band filtering power divider with capacitor-loaded centrally coupled-line resonators

Dual-band filtering power divider with capacitor-loaded centrally coupled-line resonators

Lu, Yun-Long, Dai, Gao-Le, Wang, Yi, Liu, Taijun and Huang, Jifu (2017) Dual-band filtering power divider with capacitor-loaded centrally coupled-line resonators. IET Microwaves, Antennas & Propagation, 11 (1). pp. 36-41. ISSN 1751-8725 (Print), 1751-8733 (Online) (doi:https://doi.org/10.1049/iet-map.2016.0217)

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Abstract

In this paper, a dual-band filtering power divider (DB-FPD) with capacitor-loaded centrally coupled-line resonators (CLCCLRs) is presented. The proposed design utilizes four CLCCLRs, two resistors and one inductor to achieve the dual functions of dual-band filtering and power division. By altering the values of the capacitors loaded at the ends of the coupled-lines, the center frequencies of the two passbands can be adjusted independently. It is noted that changing one passband will not affect the other. For demonstration, a microstrip filtering power divider is designed, fabricated and measured. Under different values of the loaded capacitors, experimental results show that the lower band center frequency varies from 0.7 GHz to 1.0 GHz with the upper band fixed at 1.75 GHz, whereas the upper band center frequency varies from 1.65 GHz to 1.95 GHz when the lower band is fixed at 1.0 GHz. The measured results show good agreement with the simulations.

Item Type: Article
Uncontrolled Keywords: Filter; Power divider; Dual band
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Department of Engineering Science
Last Modified: 11 Sep 2017 20:56
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/15617

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