Article
Simple and compact balanced bandpass filters based on magnetically coupled resonators
Author/s | Fernández Prieto, Armando
Lujambio, Aintzane Martel Villagrán, Jesús Medina Mena, Francisco Mesa Ledesma, Francisco Luis Rodríguez Boix, Rafael |
Department | Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo Universidad de Sevilla. Departamento de Física Aplicada I Universidad de Sevilla. Departamento de Física Aplicada II |
Publication Date | 2015 |
Deposit Date | 2020-05-26 |
Published in |
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Abstract | A simple strategy is proposed to design differential-mode bandpass filters with good common-mode (CM) rejection using simple resonators. Specifically, the CM rejection is enhanced by using conventional open-loop resonators ... A simple strategy is proposed to design differential-mode bandpass filters with good common-mode (CM) rejection using simple resonators. Specifically, the CM rejection is enhanced by using conventional open-loop resonators as well as folded stepped-impedance resonators without the addition of printed or lumped elements along the symmetry plane of the filter or the use of defected ground solutions. The novelty of the present proposal is that a good CM rejection is achieved by the use of magnetic coupling instead of the more commonly employed electrical coupling. Magnetic coupling inherently yields poorer CM transmission as requested by good differential filters. The resonators, due to their geometrical simplicity, can easily be cascaded to implement high-order filters. The use of simple geometries also simplifies the design methodology and makes final tuning based on electromagnetic simulation simpler or unnecessary. |
Project ID. | TEC2010-16948
TEC2013-41913-P CSD2008-00066 P12-TIC-1435 |
Citation | Fernández Prieto, A., Lujambio, A., Martel Villagrán, J., Medina Mena, F., Mesa Ledesma, F.L. y Rodríguez Boix, R. (2015). Simple and compact balanced bandpass filters based on magnetically coupled resonators. IEEE Transactions on Microwave Theory and Techniques, 63 (6), 1843-1853. |
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Simple and Compact Balanced.pdf | 2.565Mb | [PDF] | View/ | |