Journal ArticleDOI
A Compact Half-Mode Substrate Integrated Waveguide Bandpass Filter With Wide Out-of-Band Rejection
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TLDR
In this paper, a combination of electromagnetic bandgap (EBG)-loaded half-mode substrate integrated waveguide (HMSIW) and composite right/left-handed (CRLH) HMSIW is used in this development.Abstract:
A compact bandpass filter exhibiting an ultra-wide out-of-band rejection is studied and developed. A combination of electromagnetic bandgap (EBG)-loaded half-mode substrate integrated waveguide (HMSIW) and composite right/left-handed (CRLH) HMSIW is used in this development. The proposed filter operates below the characteristic cutoff frequency of HMSIW. The CRLH HMSIW loaded with EBG structures is investigated first. The filter with a miniaturized size is then implemented with two slots etched on HMSIW to reduce coupling effects between EBG structures and interdigital capacitors. Defected microstrip structure (DMS) as feed lines are used to obtain an ultra-wide out-of-band rejection. Measured results show that this effective stopband can cover up to 10.3 times the design center frequency for a rejection level of 20 dB. The filter exhibits high selectivity, good stopband performance, and compact size.read more
Citations
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Journal ArticleDOI
Substrate Integrated Waveguide Filters Based on a Dielectric Layer With Periodic Perforations
Lorenzo Silvestri,Enrico Massoni,Cristiano Tomassoni,Angela Coves,Maurizio Bozzi,Luca Perregrini +5 more
TL;DR: In this article, a novel class of substrate integrated waveguide (SIW) filters, based on periodic perforations of the dielectric layer, is presented. But the perforation is only applied to the waveguide sections below cutoff.
Journal ArticleDOI
Miniaturized SIW Bandpass Filter Based on TSV Technology for THz Applications
TL;DR: In this article, a miniaturized substrate integrated waveguide bandpass filter with an area of 0.682 × 0.210 mm2 is proposed based on through-silicon via (TSV) technology for terahertz (THz) applications.
Journal ArticleDOI
A compact sixteenth‐mode substrate integrated waveguide bandpass filter with improved out‐of‐band performance
Amit Ranjan Azad,Akhilesh Mohan +1 more
TL;DR: In this article, the authors presented a compact sixteenth-mode substrate integrated waveguide (SMSIW) bandpass filter operating at fundamental mode TM01, which reduced the filter size by introducing two slots on the ground plane to improve out-of-band performance.
Journal ArticleDOI
The novel reconfigurable double-layer half-mode SIW filter with tunable DMS structure
Bin You,Linyun Chen,Guo Qing Luo +2 more
TL;DR: In this paper, a reconfigurable double-layer half-mode substrate integrated waveguide (HMSIW) bandpass filter with continuous center frequency and 3 dB bandwidth was presented.
References
More filters
Journal ArticleDOI
Single-substrate integration technique of planar circuits and waveguide filters
Dominic Deslandes,Ke Wu +1 more
TL;DR: In this article, the authors present new concepts that allow for the complete integration of planar circuits and waveguide filters synthesized on a single substrate by means of metallized post (or via-hole) arrays.
Journal ArticleDOI
Compact super-wide bandpass substrate integrated waveguide (SIW) filters
TL;DR: In this paper, three types of compact SIW-PS wide-band bandpass filters are proposed and investigated with simulation and experiment, with low insertion loss and sharp out-of-band characteristics observed from both simulated and measured results.
Proceedings ArticleDOI
Composite right/left-handed substrate integrated waveguide and half-mode substrate integrated waveguide
Yuandan Dong,Tatsuo Itoh +1 more
TL;DR: In this article, a series interdigital capacitors, which are realized by etching slots on the waveguide surface, both balanced and unbalanced CRLH waveguide transmission lines (TLs) are implemented.
Journal ArticleDOI
Half Mode Substrate Integrated Waveguide 180° 3-dB Directional Couplers
TL;DR: In this paper, two types of half mode substrate integrated waveguide 180deg couplers are proposed, the phase-shifting structures of which are composed of metallic via fins or etched air slots.
Journal ArticleDOI
A New Type of Periodically Loaded Half-Mode Substrate Integrated Waveguide and Its Applications
TL;DR: In this article, a new type of half-mode substrate integrated waveguide (SIW) periodically loaded with different lumped elements and structures is proposed, and the propagation constants, Bloch impedances, and voltage distributions of the Floquet TE-modes are all characterized by solving the eigenvalues of the generalized transmission matrix of a single period.