Miniaturization of Electromagnetic Bandgap (EBG) Structures with High-Permeability Magnetic Metal Sheet

Toyota, Yoshitaka; Iokibe, Kengo; Koga, Ryuji; Engin, A. Ege; Kim, Tae Hong; Swaminathan, Madhavan

doi:10.1109/isemc.2007.19

Cited by 14 publications

(13 citation statements)

References 6 publications

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“…Since Fig. 3 (a) shows that the lower edge frequency of the stopband of the large EBG structure occurs at about 500 MHz, as is designed, one can easily conclude that a large value of μ r can cause a shift of the stopband towards lower frequencies [3]. As a result, the NSS interposition between power/ground planes with an EBG pattern can provide a wider stopband due to both the stopband shift towards lower frequencies and the vanishing passband at frequencies higher than 1 GHz.…”

Section: Experiments and Resultsmentioning

confidence: 94%

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Suppressing power bus resonance and radiation using magnetic material and EBG structure

Toyota

Iokibe

Koga

et al. 2008

2008 Asia-Pacific Symposium on Electromagnetic Compatibility and 19th International Zurich Symposium on Electromagnetic Compati

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We investigated the effects of noise suppression by interposing magnetic materials between the power and ground planes of a printed circuit board and focused on RF transmission through and radiation from the power bus. To reduce power bus resonance and radiation, we used a commercial noise suppression sheet, which is commonly used to suppress RF noise generated from electronic devices. We also examined a thin Ni-Zn ferrite film for practical use in the future. We found that power bus resonance and radiation could be mitigated owing to the imaginary part of complex permeability of magnetic materials. The thin ferrite film with a planar electromagnetic bandgap (EBG) structure helped suppress transmission and radiation in the EBG passband.

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Section: Experiments and Resultsmentioning

confidence: 94%

“…In previous work, we used the magnetic material sheet with high permeability μ r on the EBG structure for miniaturization [3]. We found that the magnetic material sheet contributes not only to reducing the dimensions of the EBG structure, but also to expanding the EBG stopband.…”

Section: Introductionmentioning

confidence: 97%

Suppressing power bus resonance and radiation using magnetic material and EBG structure

Toyota

Iokibe

Koga

et al. 2008

2008 Asia-Pacific Symposium on Electromagnetic Compatibility and 19th International Zurich Symposium on Electromagnetic Compati

Self Cite

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show abstract

“…Consequently, considerable effort has been dedicated to the design of efficient and compact passive RF components [1][2][3][4][5][6][7][8][9][10]. A number of size reduction methods have been studied, including using fractal-shaped patterns [10], applying dielectric [2] or magnetic [11] materials around the element, utilizing lumped [2] or parasitic [1] elements, applying metamaterial based ideas [9], enhancing the slow-wave behavior through periodic loading [12], etc..…”

Section: Introductionmentioning

confidence: 99%

Thick Metal Ebg Cells With Narrow Gaps and Application to the Design of Miniaturized Antennas

Hosseini¹,

Klymyshyn²,

Wells³

et al. 2014

PIER

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Abstract-The paper presents a methodology to achieve efficient low-profile electromagnetic bandgap (EBG) antennas based on thick EBG unit cells. The EBG cells are composed of thick metal patches separated by narrow high aspect ratio (HAR) gaps, and positioned on a PEC-backed substrate. This approach yields new miniaturized EBG cells with considerably reduced electrical size. The miniaturized cells are employed to demonstrate new compact self-excited EBG resonator antennas with considerably reduced operating frequencies. Full-wave simulations and experimental results demonstrate the design approach.

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“…Several researchers have been investigated for the blocking of the SSN propagation in the power systems [3][4][5][6][7][8][9][10][11]. Conventional methods are to use decoupling capacitors or embedded capacitors, which is placed between power and ground planes [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, the electromagnetic bandgap (EBG) structures are proposed for the SSN suppression in the frequency range above 1 GHz [5][6][7][8][9][10][11]. The EBG structures have a forbidden bandgap in the form of distributed LC networks realized by capacitive metal cells connected by narrow inductive lines [5].…”

Section: Introductionmentioning

confidence: 99%

New Composite Power Plane Using Spiral Ebg and External Magnetic Material for SSN Suppression

Eom¹,

Byun²,

Lee³

2010

PIER Letters

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A new structure of composite power plane with a spiral electromagnetic bandgap (EBG) and an external magnetic material is proposed for the suppression of simultaneous switching noise (SSN) in the mixed-signal systems. The new structure proposed in the present research is designed with an external magnetic material and the spiral EBG structure. The new structure is relatively simple to fabricate and cost effective because the external magnetic material is partially placed on the top of perforated spiral-bridged EBG plane. The EBG bandgap is shifted to lower frequencies by the real part of the permeability (µ r), and the power plane Q-factor is also decreased by the imaginary part of the permeability (µ r) associated with the magnetic loss. It is expected the reduction of a circuit size and an improvement of the power integrity with the mixed-signal systems in the given new structure.

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Miniaturization of Electromagnetic Bandgap (EBG) Structures with High-Permeability Magnetic Metal Sheet

Cited by 14 publications

References 6 publications

Suppressing power bus resonance and radiation using magnetic material and EBG structure

Suppressing power bus resonance and radiation using magnetic material and EBG structure

Thick Metal Ebg Cells With Narrow Gaps and Application to the Design of Miniaturized Antennas

New Composite Power Plane Using Spiral Ebg and External Magnetic Material for SSN Suppression

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