A Novel Absorptive Power Delivery Network for Power Noise Mitigation
Journal
IEEE Transactions on Electromagnetic Compatibility
Journal Volume
64
Journal Issue
2
Pages
536-542
Date Issued
2022
Author(s)
Abstract
In this article, for the first time, a power delivery network (PDN) noise absorber is applied to the power system and verified based on a power trace system. Among all the existing absorptive circuits, a low-pass reflectionless circuit is chosen as our PDN noise absorber due to its broadband characteristic. Since the speed of the signal becomes higher and higher nowadays, a millimeter distance of a power trace with the traditional reflective PDN noise suppression devices, such as decoupling capacitors (de-caps), may provide serious standing wave on it and seriously affect the system. The proposed PDN noise absorber, on the other hand, can absorb the PDN noises so that the standing wave on the power trace can be prevented. This makes power trace systems more stable and avoids significant power noises at some locations. A prototype using a PDN noise absorber was fabricated. The power integrity performance of this prototype was compared with two other cases, power trace only and power trace with a de-cap. Compared with the de-cap case at the designed frequency 750 MHz, a PDN noise absorber can reduce 40% maximum voltage ripple. On the other hand, noise coupling between the digital and radio frequency circuits has also been demonstrated and compared for those three different PDNs. It shows a 3.7-dB decrease in gain fluctuation for the PDN with power noise absorber compared with the de-cap case. According to these results, no matter from power integrity or noise coupling suppression viewpoint, PDN noise absorber can be a good candidate to make the power system more stable. IEEE
Subjects
Absorptive
Harmonic analysis
Impedance
Inverters
power delivery network
power distribution network (PDN) noise
power integrity (PI)
Prototypes
Radio frequency
RLC circuits
simultaneous switching noise (SSN)
Voltage measurement
Elastic waves
Electric inverters
Electric network analysis
Electric power transmission
Resonant circuits
Timing circuits
Inverter
Network noise
Power delivery network
Power distribution network
Power distribution network noise
Power integrity
Prototype
Radiofrequencies
RLC circuit
Simultaneous switching noise
Radio waves
SDGs
Type
journal article