Journal ArticleDOI
A novel periodic electromagnetic bandgap structure for finite-width conductor-backed coplanar waveguides
Shau-Gang Mao,Ming-Yi Chen +1 more
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TLDR
In this paper, a 1D periodic electromagnetic bandgap (EBG) structure for the finite-width conductor-backed coplanar waveguide (FW-CBCPW) was proposed.Abstract:
The one-dimensional (1-D) periodic electromagnetic bandgap (EBG) structure for the finite-width conductor-backed coplanar waveguide (FW-CBCPW) is proposed. Unlike the conventional EBG structures for the microstrip line and the coplanar waveguide (CPW), which are typically placed on one of the signal strips and the ground plane, this EBG cell is etched on both the signal strip and the upper ground plane of FW-CBCPW resulting in a novel circuit element. The equivalent circuit is also used to model the EBG cell. Measured and full-wave simulated results show that the cell exhibits remarkable stopband effect. The low-pass filter with lower cutoff frequency and wider rejection bandwidth is constructed from a serial connection of the EBG cells. The effect of back metallization on the guiding characteristic is also discussed. Compared to the published EBG cells, the proposed structure has the advantages of relative flexibility, higher compactness, lower radiation loss, and easier integration with the uniplanar circuits.read more
Citations
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Journal ArticleDOI
A spiral-shaped defected ground structure for coplanar waveguide
TL;DR: In this paper, a spiral-shaped defected ground structure for coplanar waveguides (DGSCPW) is proposed, which can be used as a kind of periodic structure for a planar transmission line.
Journal ArticleDOI
A full-wave numerical approach for modal analysis of 1-D periodic microstrip structures
TL;DR: In this article, a full-wave numerical approach for the analysis and design of one-dimensional (1-D) printed periodic structures is presented, which is based on a mixedpotential integral equation in a unit-cell environment solved by the method of moments in the spatial domain through a triangular Delaunay mesh.
Journal ArticleDOI
Uniplanar compact wideband bandstop filter
Ali Kursad Gorur,Ceyhun Karpuz +1 more
TL;DR: In this paper, a uniplanar wideband bandstop filter using two bent open-end stubs is proposed, which results in wideband design with a rejection bandwidth of 90% at 2.05 GHz.
Journal ArticleDOI
Propagation characteristics of finite-width conductor-backed coplanar waveguides with periodic electromagnetic bandgap cells
Shau-Gang Mao,Ming-Yi Chen +1 more
TL;DR: In this article, the authors investigated wave propagation along the finite-width conductor-backed coplanar waveguide (FW-CBCPW) with periodically loaded one-dimensional electromagnetic bandgap (EBG) cells.
Journal ArticleDOI
Reflection characteristics of 1-d ebg ground plane and its application to a planar dipole antenna
TL;DR: In this article, a 1-dimensional electromagnetic bandgap (1-D EBG) ground plane was designed and characterized, which is applied to the design of low-proflle directive dipole antennas.
References
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Journal ArticleDOI
High-impedance electromagnetic surfaces with a forbidden frequency band
TL;DR: In this paper, a new type of metallic structure has been developed that is characterized by having high surface impedance, which is analogous to a corrugated metal surface in which the corrugations have been folded up into lumped-circuit elements and distributed in a two-dimensional lattice.
Journal ArticleDOI
A design of the low-pass filter using the novel microstrip defected ground structure
TL;DR: In this article, a new defected ground unit structure (DGS) for the microstrip line is proposed, which can provide the bandgap characteristic in some frequency bands with only one or more unit lattices.
Enhanced Patch-Antenna Performance by Suppressing Surface Waves Using
Peter de Maagt,Mario Sorolla +1 more
TL;DR: In this paper, a photonic-bandgap (PBG) substrate for patch antennas is proposed, which minimizes the surface-wave effects and shows significantly reduced levels of surface modes compared to conventional patch antennas.
Journal ArticleDOI
Enhanced patch-antenna performance by suppressing surface waves using photonic-bandgap substrates
TL;DR: In this paper, a photonic-bandgap (PBG) substrate for patch antennas is proposed, which minimizes the surface-wave effects and shows significantly reduced levels of surface modes compared to conventional patch antennas, thus improving the gain and far field radiation pattern.
Journal ArticleDOI
Novel 1-D microstrip PBG cells
TL;DR: In this article, a 1D microstrip photonic bandgap (PBG) cell was proposed and simulations and experiments showed that the cell exhibits remarkable slow-wave and band-stop effects.
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