@misc{10481/103746,
year = {2025},
month = {3},
url = {https://hdl.handle.net/10481/103746},
abstract = {This work presents the design of a cavity-stacked bandpass filter (BPF) using contactless air-filled substrate integrated waveguide (CLAF-SIW) technology for millimeter-wave frequencies. This technology is a variant of air-filled SIW technology, incorporating contactless techniques. It enables the reduction of dielectric losses in SIW filters while supporting multilayer structures with robust assembly. The cavity-stacked filter topology allows for very good frequency responses with a reduced footprint and no transitions needed. As an example, a 4th-order Chebyshev bandpass filter composed of four stacked cavities, coupled through irises, is shown. The iris layers are fabricated by metallizing the slot edges of a PCB, while the cavity layers are implemented using CLAF-SIW. The filter has been designed and manufactured to provide a passband response from 36 GHz to 37.5 GHz. A good agreement between measurement and simulation has been achieved. The losses in the proposed CLAF-SIW filter are primarily due to the metal roughness of the low-cost commercial laminates used.},
organization = {Funding for open access charge: Universidad de Granada/CBUA},
keywords = {Cavity-stacked filters},
keywords = {Chebyshev filter},
keywords = {CLAF-SIW technology},
keywords = {Electromagnetic bandgap},
keywords = {Millimeter waves},
keywords = {Planar technologies},
title = {Cavity-stacked filter in CLAF-SIW technology for millimeter waves},
doi = {https://doi.org/10.1016/j.aeue.2025.155725},
author = {Segura Gómez, Cleofás and Biedma Pérez, Andrés and Santiago, David and Palomares Caballero, Ángel and Arregui, Iván and Gómez Laso, Miguel Ángel and Padilla De La Torre, Pablo},
}