Wide and narrow-band bandpass coplanar filters in the W-frequency band - Archive ouverte HAL
Article Dans Une Revue IEEE Transactions on Microwave Theory and Techniques Année : 2003

Wide and narrow-band bandpass coplanar filters in the W-frequency band

Résumé

This paper deals with the design of passive coplanar devices in the W-frequency band. As long as coplanar transmission lines are correctly dimensioned, analytical models based on quasi-TEM approximation can be used. Such models are associated with a correct definition of the reference planes at the junctions and employed for junction discontinuities, T- and cross-junctions. In order to validate these assertions, simulated and experimental data on classical quarter-wavelength shunt-stub filters are first presented. Then the design of traditional coupled-line filters is examined. The problems in terms of insertion loss associated with these kinds of narrow-band applications are discussed here. Minimization of insertion losses requires increasing the width of the strips. Consequently, the design becomes complex and modeling using transmission-line models less accurate. Nevertheless, as an optimization procedure is needed to tune the filter theoretically, such a very fast design method is necessary. Simulated and experimental results in the range 500 MHz to 110 GHz are compared throughout the paper.
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hal-00145985 , version 1 (19-08-2022)

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Eric Rius, Gaëtan Prigent, H. Happy, Gilles Dambrine, Samuel Boret, et al.. Wide and narrow-band bandpass coplanar filters in the W-frequency band. IEEE Transactions on Microwave Theory and Techniques, 2003, 51 (3), pp.784-791. ⟨10.1109/TMTT.2003.808586⟩. ⟨hal-00145985⟩
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