Novel photonic bandgap microstrip structures using network topology

Lopetegi, T.; Laso, M.A.G.; Erro, M. J.; Benito, D.; Garde, M. J.; Falcone, Francisco; Sorolla, M.

doi:10.1002/(sici)1098-2760(20000405)25:1<33::aid-mop10>3.0.co;2-t

Cited by 67 publications

(67 citation statements)

References 7 publications

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“…As reported in [8], plain PBG structures formed by simple cascading of distributive elements suffer disadvantages of a narrower bandwidth in the stop-band, and a high rejection level on the side-lobe. To alleviate the effects, the chirping and tapering techniques are suggested as follows.…”

Section: The Chirping and Tapering Techniquesmentioning

confidence: 97%

“…In order to improve the disadvantages of narrow bandwidth and high rejection side-lobes on regular PBG structures, a chirping and tapering technique, as proposed in [8], is applied to the perforated PBG structure. Moreover, the FDTD solver is also validated against some PBG structures published in other literature, and good agreement is observed.…”

Section: Introductionmentioning

confidence: 99%

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Numerical studies of stripline-typed photonic band-gap (PBG) structures using finite difference time domain (FDTD) method

et al. 2006

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One of the major topics in the areas of microelectronics and communications today is the study of photonic band-gap (PBG) structures using planar transmission lines. In fact, structures using microstrip-line circuits have been comprehensively applied in recent years. However, studies involving transmission lines using striplines (STP) have not been commonly conducted. In this paper, a number of PBG structures constructed on the STP are studied by using a wellknown numerical method, the finite-difference time-domain (FDTD) method. Results show the band-stop filter behavior of these structures, and the computed results match generally well with the ones published in literature through solver validation. To improve the narrow bandwidth of regular PBG structures, a chirping and tapering technique is introduced. The proposed STP PBG structures may be considered as alternatives to the conventional microstrip-line typed PBG structures.

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Section: The Chirping and Tapering Techniquesmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Numerical studies of stripline-typed photonic band-gap (PBG) structures using finite difference time domain (FDTD) method

et al. 2006

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“…In order to get an optimum performance in the rejection band, the filling factor in the range of 0.24 to 0.3 is suggested [Fu et al, 2001;Lopetegi et al, 2000].…”

Section: Ebgs Designmentioning

confidence: 99%

“…Recently, this concept has been scaled down to microwave and millimeter-wave frequency bands resulting in a more appropriate term EBG. A periodic structure (EBGs) applied to microwave planar waveguides can produce passband or stopband characteristics Fu et al, 2001;Lopetegi et al, 2000]. By proper selection of dimensions and periods certain waves are allowed to propagate through, while the other waves, such as surface waves, can be suppressed.…”

Section: Introductionmentioning

confidence: 99%

A microstrip Yagi antenna using EBG structure

Padhi

Bialkowski

2003

Radio Science

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[1] In this paper a detailed design, development and performances of a 5 GHz microstrip Yagi antenna, which uses a two-dimensional (2-D) electromagnetic band gap (EBG) structure in the ground plane, are presented. The results indicate that the use of the EBG structure improves the radiation pattern of the antenna. The cross polarization is suppressed by properly choosing the period and dimensions of EBGs. Also, the broadside gain is improved in comparison with the analogous antenna without the EBGs.

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“…This produces Bragg reflection in some frequency bands, roughly given by the spectrum of the coupling coefficient [9,10], which is closely related to the wave impedance of the line and hence line geometry. The modulation of the wave impedance can be achieved by drilling holes in the substrate [11], by etching periodic patterns in the ground plane [12][13][14][15], or by varying the geometry of the signal strip [16] (or a combination of them). So far, most of the applications of EBG structures have been carried out in microstrip technology.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Reflection Properties in Electromagnetic Bandgap Coplanar Waveguides Loaded with Reactive Elements

Martín¹,

Falcone²,

Bonache³

et al. 2003

PIER

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Abstract-In this work, we study the reflection properties of coplanar waveguides (CPW) periodically loaded with shunt connected capacitances and periodically perturbed by varying the slot width. These structures are of interest because the low pass frequency response with spurious frequency bands, inherent to the presence of capacitors, can be improved. This is achieved through the attenuation of frequency parasitics that is obtained by the introduction of slot width modulation. Both sinusoidal and square wave patterns are considered and the effects of the relative position of reactive elements with regard to the perturbation geometry is analysed. According to coupled mode theory, the central frequencies of the rejected bands in periodic transmission media are given by the spectrum of the perturbation function. However, it is demonstrated that, due to the presence of capacitors, multiple spurious bands can be simultaneously suppressed even in the case of a singly tuned (sinusoidal) perturbation geometry. This result points out that the frequency selective behaviour associated to the presence of slot width modulation can not be interpreted in the framework of coupled mode theory, since the rejection of spurious bands in periodic loaded CPWs is not merely given by the spectrum of the perturbation geometry.

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Novel photonic bandgap microstrip structures using network topology

Cited by 67 publications

References 7 publications

Numerical studies of stripline-typed photonic band-gap (PBG) structures using finite difference time domain (FDTD) method

Numerical studies of stripline-typed photonic band-gap (PBG) structures using finite difference time domain (FDTD) method

A microstrip Yagi antenna using EBG structure

Analysis of the Reflection Properties in Electromagnetic Bandgap Coplanar Waveguides Loaded with Reactive Elements

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