Multilayer SIW Dual-Band Filters with Independent Band Characteristics and High Selectivity
-
Dinghong Jia
,
Jianqin Deng
Abstract
This work presents an approach to developing dual-mode dual-band substrate integrated waveguide (SIW) bandpass filter based on multilayer process. TE102/TE201 and TE101/TE102 modes are used to feature the two passbands, respectively. To begin with, large range of band location ratios are decided by the effective dimension of the SIW resonator. With reference to the field distribution, independent coupling schemes of the dual-modes are then realized by slots or circular apertures etched on the middle metal layer. It allows to not only introduce a large design freedom of bandwidth but also keep compactness. Finally, source-load and mixed couplings are deployed to produce transmission zeros around the passband in providing a sharp selectivity in the two filters, respectively. The details to independently control the center frequencies and bandwidth of two passbands are also presented. A two-order double-layered and a triple-layered SIW dual-band bandpass filter are prototyped to evaluate the proposed design approach, respectively. Results show a good agreement between simulations and measurements. The proposed filter exhibits flexible design freedom, high selectivity as well as good out-of-band rejection.
Acknowledgements
This work was supported by the National Key R&D Program of China under Grant 2018YFF0109302 and 2018YFF0109702 and the Science and Technology on Electronic Test & Measurement Laboratory under Grant 9140C120102150C12055 and 6142001010101.
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© 2019 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Research Articles
- A Compact Third-Order Triplexer Using Common Lumped-Element Triple-Mode Resonator
- Multilayer SIW Dual-Band Filters with Independent Band Characteristics and High Selectivity
- A Filtering Power Divider with Tunable Center Frequency and Wide Stopband
- Review Article
- Computational Study of Photonic Crystal Resonator for Biosensor Application
- Research Articles
- Development and Miniaturized of Circularly Polarization Diversity at Cavity Backed SIW Antenna for X-Band Application
- Microstrip Hexagonal Fractal Antenna for Military Applications
- Broad-Band Substrate-Free Planar Metamaterial Lens Based on a Geometric Transformation of Polygon
- Polarization Reconfigurable Dual-Band Rectangular Slot Antenna
Articles in the same Issue
- Frontmatter
- Research Articles
- A Compact Third-Order Triplexer Using Common Lumped-Element Triple-Mode Resonator
- Multilayer SIW Dual-Band Filters with Independent Band Characteristics and High Selectivity
- A Filtering Power Divider with Tunable Center Frequency and Wide Stopband
- Review Article
- Computational Study of Photonic Crystal Resonator for Biosensor Application
- Research Articles
- Development and Miniaturized of Circularly Polarization Diversity at Cavity Backed SIW Antenna for X-Band Application
- Microstrip Hexagonal Fractal Antenna for Military Applications
- Broad-Band Substrate-Free Planar Metamaterial Lens Based on a Geometric Transformation of Polygon
- Polarization Reconfigurable Dual-Band Rectangular Slot Antenna
