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Ka‐band multilayered substrate integrated waveguide narrowband filter for system‐in‐package applications
Author(s) -
Shen Mengkui,
Shao Zhenhai,
Du Xuekun,
He Zhaosheng,
Li Xiang
Publication year - 2016
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29833
Subject(s) - narrowband , band pass filter , bandwidth (computing) , microwave , filter (signal processing) , electronic engineering , insertion loss , waveguide filter , materials science , center frequency , optoelectronics , system in package , prototype filter , engineering , electrical engineering , filter design , telecommunications , chip
ABSTRACT In this article, a Ka‐band narrowband multilayer bandpass filter (BPF) centered at 34.5 GHz is presented, where a hybrid structure of two substrate integrated waveguide (SIW) cavities with slots and CPW is used to meet the good filtering capability and compact size. Benefiting from the 3‐D circuit layout, the proposed filter can effectively overcome a vital drawback of large circuit size of traditional filter, and be used in system‐in‐package application. The circuit size of the filter excluding feed lines is about 0.5λg by 0.5λg, where λg is the guided wavelength at the central frequency of 34.5GHz. Simulated results show that the filter has the 3dB bandwidth of 0.86 GHz (FBW = 2.5%) and insertion loss of 1.7 dB at central frequency. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1395–1398, 2016