Compact bandstop half-mode substrate integrated waveguide filter based on a broadside-coupled open split-ring resonator
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Hinojosa Jiménez, Juan; Rossi, Marcello; Saura Ródenas, Adrián; Álvarez Melcón, Alejandro; Martínez Viviente, Félix LorenzoÁrea de conocimiento
ElectrónicaPatrocinadores
This work was supported by the Spanish Ministerio de Economía y Competitividad, Fundación Séneca of Murcia and European Regional development funds under grants TEC2016-75934-C04-4-R and 19494-PI-14Fecha de publicación
2018-06Editorial
IEEECita bibliográfica
HINOJOSA, Juan, et al. Compact bandstop half-mode substrate integrated waveguide filter based on a broadside-coupled open split-ring resonator. IEEE Transactions on Microwave Theory and Techniques, 2018, vol. 66, no 6, p. 3001-3010.Revisión por pares
siPalabras clave
Band-stop filterHalf-mode substrate integrated waveguide (HMSIW)
Split ring resonator (SRR).
Resumen
A shunt RLC resonant circuit obtained from a broadside coupled open split ring resonator (BC-OSRR) is proposed. This BC-OSRR cell allows a parallel connection with planar waveguides. Hence, it has been applied to a halfmode substrate integrated waveguide (HMSIW) section. The analysis of the frequency response and electromagnetic field distribution of the HMSIW structure loaded with an appropriate BC-OSRR cell have shown two main behaviors. The first characteristic is a high-pass frequency response inherent to the HMSIW and the second is a transmission zero in the pass-band of the HMSIW, which is due to the resonance of the BC-OSRR cell. First- and second-order prototypes have been designed and fabricated. The measured band-stop HMSIW filters using BC-OSRR achieve a 3 dB stop-band bandwidth around 10% with more than 21 dB insertion loss. This BC-OSRR cell with low undesired radiation loss can be a new alternative for the implementation of compact band-stop filters in planar technology
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