论文信息 - A novel narrowband filter with cross-coupling used for system-in-package applications

A novel narrowband filter with cross-coupling used for system-in-package applications

A novel narrowband filter with cross-coupling is presented. By taking advantage of the structure of multilayered substrates, two substrate integrated circular cavities (SICCs) are stacked, and cross-coupling is realized between the two resonators by different slots in the middle layer. Because of the cross-coupling structure, two transmission zeros (TZs) are introduced in the out-of-band region, allowing the frequency selectivity to be improved. The simulated insertion loss at the central frequency of 33 GHz is approximately 3 dB and the 3-dB bandwidth is 0.4 GHz. The structure is simple to fabricate and practical for use in system-in-packaging applications.

Xianqi Lin | Jing Ai | Mengkui Shen | Tianye Ma | William T. Joines

[1] W. Che,et al. LTCC Multilayered Substrate-Integrated Waveguide Filter With Enhanced Frequency Selectivity for System-in-Package Applications , 2014, IEEE Transactions on Components, Packaging and Manufacturing Technology.

[2] Zhenhai Shao,et al. Ka‐band multilayered substrate integrated waveguide narrowband filter for system‐in‐package applications , 2016 .

[3] Wolfgang Bosch,et al. Design and Multiphysics Analysis of Direct and Cross-Coupled SIW Combline Filters Using Electric and Magnetic Couplings , 2015, IEEE Transactions on Microwave Theory and Techniques.

[4] Jr. R. Wyndrum. Microwave filters, impedance-matching networks, and coupling structures , 1965 .

[5] Lei Zhu,et al. Substrate Integrated Waveguide Quasi-Elliptic Filter Using Slot-Coupled and Microstrip-Line Cross-Coupled Structures , 2016, IEEE Transactions on Components, Packaging and Manufacturing Technology.

[6] Ke Wu,et al. Self-Packaged Millimeter-Wave Substrate Integrated Waveguide Filter With Asymmetric Frequency Response , 2012, IEEE Transactions on Components, Packaging and Manufacturing Technology.