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In this paper, the bandwidth enhancement of planar type electromagnetic bandgap (EBG) structure using dissipative edge termination technique is investigated. Two termination schemes are presented; first with the termination elements along edges of every single EBG patches and second with termination along edges of the whole power plane. In the first case, simulations show that, both lower and upper...
A novel method of using complementary split-ring resonators (CSRRs) structure in power/ground plane pair for wideband simultaneous switching noise (SSN) isolation is presented. Compared with traditional mushroom-like electromagnetic band gap (EBG) and coplanar EBG, the proposed nested CSRRs structure only need to be partially etched on the power plane and is easy to be fabricated, while the performance...
In this paper, a comparative investigation on power noise suppression between two blocks in printed circuit boards (PCBs) is presented. Eight noise isolation methods are discussed, including the reference case and seven most frequently used cases. Optimization and improvement for each method are discussed to achieve better performance. Through comparison, useful guidelines are drawn for real designs.
This paper investigates and compares eight most frequently used edge radiation suppression methods. Optimization and improvement for each method are discussed to achieve better radiation suppression performance. In addition, many helpful design guidelines are obtained through a comprehensive comparison of these methods, to guide better EMC design for PCB. Base on this work, one can get a good guideline...
In this paper, an efficient noise isolation technique in mixed-signal systems using semi-lumped element resonators is presented. The resonators act as a filter which can be implemented between the power delivery networks of RF and digital circuits. The power filtering is accomplished due to a short circuit that can be induced between the ground and power planes of the RF domain at the designed resonant...
This paper demonstrates possible design approaches for the virtual ground fence, a novel design concept for shielding power plane noise. The basic idea of a virtual ground fence is replacing discrete capacitors with quarter-wave stubs. This allows decoupling of power plane noise in the GHz spectrum. Such noise filtering is critical in a mixed-signal system, where there is switching noise generated...
This paper investigates and compares eight most frequently used edge radiation suppression methods. Optimization and improvement for each method are discussed to achieve better radiation suppression performance. In addition, many helpful design guidelines are obtained through a comprehensive comparison of these methods, to guide better EMC design for PCB. Base on this work, one can get a good guideline...
In this paper, a comparative investigation on power noise suppression between two blocks in printed circuit boards (PCBs) is presented. Eight noise isolation methods are discussed, including the reference case and seven most frequently used cases. Optimization and improvement for each method are discussed to achieve better performance. Through comparison, useful guidelines are drawn for real designs.
A new design etching electromagnetic band-gap(EBG) structure on the power plane was proposed to mitigate simultaneous switching noise(SSN) in this paper. The characteristics of the stop-band are simulated by ansoft HFSS. Additionally, comparing with the design consists of a Sierpinski curve with one iteration and meander lines, it has shown better lower frequency characteristics. And, its −40dB noise...
This paper presents three related planar EBG (electromagnetic bandgap) structures based on embedded capacitors and inductors, which have small-footprints and can be used in package power or ground planes to provide wideband isolation among different parts of the power distribution network (PDN). Measurement shows −40dB isolation from 2–2.5GHz to over 10GHz. In order to improve performance at lower...
With the decrease of the digital circuit noise tolerance and the timing margins tolerance. The simultaneous switching noise (SSN) of Power ground plane become a major bottleneck for high speed design. The existing method of suppressing SSN exist their short comings. In this paper, the new method combined electromagnetic band gap(EBG)with decoupling capacitors is put forwarded to use design to suppress...
This report proposes low power supply noise interposers with two types of structures based on embedding technologies. These structures reduce (i) self-noise and (ii) transfer-noise. We designed and developed these two structures and evaluated them experimentally. Using small chip components (0402) permitted interposer heights of less than 0.6 mm. The measurement results indicate the following: (i)...
In this paper, the mechanism of power noise suppression is investigated. It is shown that periodic structure results in stopband characteristic. Then a simple and easy-design periodic slotted electromagnetic bandgap structure with wideband power noise suppression is proposed based on the basic mechanism. Both simulated and measured results are given which are consistent each other.
Power noise suppression on a mixed signal board is investigated in this paper with focus on Embedded Capacitance Material (ECM) and mushroom-type Electromagnetic Bandgap (EBG). ECM and mushroom-type EBG's working mechanisms and their advantages and disadvantages on high speed power noise suppression are compared though simulation and confirmed on an experimental board. The combined performance of...
This paper presents an effective power noise isolation and suppression method in high-speed package substrates, which is based on planar electromagnetic bandgap (EBG) in local area of power/ground plane and embedded capacitor material between the power and ground planes. Compared with the performance of continuous power and ground planes, the proposed structure provides greater than −40dB isolation...
A new uniplanar compact electromagnetic bandgap (UCEBG) structure embedded in power distribution network (PDN) for suppression of the simultaneous switching noise is proposed. The key idea relies on embedding UCEBG between power/ground planes instead of replacing UCEBG with one of them. Simulations showed that this new structure has these advantages: noise suppression in few megahertz range (below...
System on package (SOP) is an emerging technology, and provides an implementation options for system with small size, especially for mixed-signal systems. However, in such a compact package, noise generated by the digital chip can be easily coupled to the RF IC, and degrade the sensitivity of RF signal. In this paper, a simple and efficient multi-order lowpass filter for EMI and SSN suppression in...
Ground bounce noise (GBN) is becoming one of the major challenges for designing high speed system and packages. It causes serious signal integrity (SI) problems in the high speed system. Traditional techniques center on adding more decoupling capacitors to create a low impedance path. Electromagnetic band gap (EBG) structure is used to suppress GBN combined with decoupling capacitors in this study...
A single-ended class-D amplifier without DC blocking capacitor is presented herein, so as not only to reduce the required size but also to upgrade the low-frequency response. Above all, the corresponding output power of the proposed structure is four times of that of the traditional structure. In this paper, the basic operation principles are firstly described, and secondly some experimental results...
Electromagnetic bandgap (EBG) structures integrated into the parallel plane pairs are highly effective in mitigating the propagation of Electromagnetic noise. The intentional increase of the inductance in the EBG patterned plane pairs to create a bandgap affects the charge delivery to the switching devices from the nearby bypass capacitors. This paper analyses the charge delivery in Power/Ground planes...
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