2021
DOI: 10.1002/mop.32914
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Compact quasi‐elliptic SIR‐SIW filter with multiple transmission zeros

Abstract: In this paper, a compact quasi‐elliptic stepped impedance resonator‐substrate integrated waveguide (SIR‐SIW) bandpass filter with multiple transmission zeros (TZs) has been proposed. The SIR‐SIW filter consists of SIW cavity and SIR. The employment of SIR makes it possible to realize multiple energy coupling paths within a compact area for introduction of multiple TZs. The SIW is used for its high Q, low loss characteristics. Besides, two TZs are introduced by the SIW. Including energy coupling path between so… Show more

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Cited by 8 publications
(8 citation statements)
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“…It is particularly important in the design of ultra-wideband filters. Therefore, SIR is widely used when designing filters with band-pass performance [ 21 ].…”
Section: Uwb Bpf Designmentioning
confidence: 99%
See 1 more Smart Citation
“…It is particularly important in the design of ultra-wideband filters. Therefore, SIR is widely used when designing filters with band-pass performance [ 21 ].…”
Section: Uwb Bpf Designmentioning
confidence: 99%
“…It is particularly important in the design of ultra-wideband filters. Therefore, SIR is widely used when designing filters with band-pass performance [21]. The input impedance expression at a distance l from the load on a uniform lossless transmission line is Eq (2):…”
Section: Plos Onementioning
confidence: 99%
“…The out-of-band suppression of lumped bandpass filters (BPFs) can also be improved by generating transmission zeros through interstage and cross-coupling. [10][11][12][13][14][15][16][17] To decrease the size of the chip, an integrated passive device (IPD) technology [18][19][20][21] was developed to fabricate on-chip filters. Band N77 is an important band for 5G-NR applications, and to improve the sensitivity and also avoid interference to other frequency bands such as Bluetooth, GPS, and WiFi band.…”
Section: Introductionmentioning
confidence: 99%
“…Multiple transmission zeros can be realized by using different open/short‐circuit stub lines 1–3 and the defective ground structure 4–9 is used to suppress the high‐order harmonics. The out‐of‐band suppression of lumped bandpass filters (BPFs) can also be improved by generating transmission zeros through interstage and cross‐coupling 10–17 . To decrease the size of the chip, an integrated passive device (IPD) technology 18–21 was developed to fabricate on‐chip filters.…”
Section: Introductionmentioning
confidence: 99%
“…Además, posee características de tamaño, peso y coste de fabricación reducidas con respecto a la tecnología clásica guía de onda. Entre los diferentes diseños de ltros SIW pasa banda propuestos, podemos citar las estructuras con postes inductivos [Bozzi et al, 2011], las estructuras de gap electromagnético (Electromagnetic Band Gap, EBGs) [Ruiz Moitra and Bhowmik, 2016] y las estructuras resonantes de diferentes tipos como DGSs (Defected Ground Structures ) [Shen et al, 2011], celdas resonantes microstrip compactas (Compact Microstrip Resonant Cells, CMRCs) , perforaciones periódicas (PPs) [Silvestri et al, 2017] [Martínez et al, 2019, resonadores basados en saltos de impedancia (Stepped-Impedance Resonators, SIRs) [Danaeian et al, 2018] [Song et al, 2021, resonadores en anillo (Complementary Split-Ring Resonators, CSRRs) [Martínez et al, 2019, cavidades dieléctricas resonantes [Liu et al, 2018] y resonadores multimodo (Multiple-Mode Resonators, MMRs) [Chen et al, 2015]. Estos últimos ltros disminuyen su tamaño al conseguir que una cavidad resuene a varias frecuencias simultáneamente, pero son matemáticamente más complicados.…”
Section: Antecedentes Y Estado Actual De Los Ltros En Tecnología Siwunclassified