| 000 | 00000nam c2200205 c 4500 | |
| 001 | 000045978564 | |
| 005 | 20230712110209 | |
| 007 | ta | |
| 008 | 181227s2019 ulkad bmAC 000c eng | |
| 040 | ▼a 211009 ▼c 211009 ▼d 211009 | |
| 085 | 0 | ▼a 0510 ▼2 KDCP |
| 090 | ▼a 0510 ▼b 6YD36 ▼c 351 | |
| 100 | 1 | ▼a 오상열 ▼g 吳尙烈 |
| 245 | 1 0 | ▼a Design and analysis of common-mode noise suppression structures in differential microstrip lines / ▼d Sang-yeol Oh |
| 260 | ▼a Seoul : ▼b Graduate School, Korea Unversity, ▼c 2019 | |
| 300 | ▼a xiii, 76장 : ▼b 삽화(일부천연색), 도표 ; ▼c 26 cm | |
| 500 | ▼a 지도교수: 이재훈 | |
| 502 | 1 | ▼a 학위논문(박사)-- ▼b 고려대학교 대학원, ▼c 컴퓨터·전파통신공학과, ▼d 2019. 2 |
| 504 | ▼a 참고문헌: 73-76 | |
| 530 | ▼a PDF 파일로도 이용가능; ▼c Requires PDF file reader(application/pdf) | |
| 653 | ▼a common-mode noise ▼a suppression | |
| 776 | 0 | ▼t Design and Analysis of Common-Mode Noise Suppression Structures in Differential Microstrip Lines ▼w (DCOLL211009)000000083182 |
| 900 | 1 0 | ▼a Oh, Sang-yeol, ▼e 저 |
| 900 | 1 0 | ▼a 이재훈, ▼g 李在勳, ▼d 1975-, ▼e 지도교수 ▼0 AUTH(211009)153277 |
| 945 | ▼a KLPA |
Electronic Information
| No. | Title | Service |
|---|---|---|
| 1 | Design and analysis of common-mode noise suppression structures in differential microstrip lines (92회 열람) |
View PDF Abstract Table of Contents |
Holdings Information
| No. | Location | Call Number | Accession No. | Availability | Due Date | Make a Reservation | Service |
|---|---|---|---|---|---|---|---|
| No. 1 | Location Science & Engineering Library/Stacks(Thesis)/ | Call Number 0510 6YD36 351 | Accession No. 123060833 | Availability Available | Due Date | Make a Reservation | Service |
| No. 2 | Location Science & Engineering Library/Stacks(Thesis)/ | Call Number 0510 6YD36 351 | Accession No. 123060834 | Availability Available | Due Date | Make a Reservation | Service |
Contents information
Abstract
Because differential signaling has a high immunity to noise, it is widely used in high-speed digital printed circuit boards (PCBs). However, asymmetric geometries lead to common-mode noise in high-speed interconnections based on differential signaling. These asymmetric geometries include rising/falling time mismatches in the I/O driver circuit, trace length mismatches, and imbalanced routing such as bending. Common-mode noise not only degrades signal quality in differential signaling but also generates unwanted radiation noise on a PCB where the cables, integrated circuit (IC) devices, and connectors are combined. The emitted radiation noise arising from the common-mode noise generated by the differential pairs can lead to electromagnetic interference (EMI) and radio-frequency interference (RFI), both of which adversely affect signal integrity in high-speed interconnections. Thus, common-mode noise should be suppressed by employing a rejection filter or a compensation structure for line-length mismatches.
In this dissertation, two wideband common-mode noise rejection filters and a compensation structure for bent differential lines are proposed. First, a wideband common-mode noise rejection filter based on coupled microstrip lines (CMLs) and edge-coupled coplanar waveguides (ECCPWs) was designed. The proposed filter provides wideband common-mode noise signal suppression based on an even mode impedance mismatching technique between the CMLs and ECCPWs and wideband differential-mode signal propagation for high-speed digital PCBs. Secondly, a wideband common-mode noise filter with defected ground structures (DGSs) and capacitive-coupled stepped-impedance open stubs (CCSIOSs) was designed. Based on an analysis of the Bloch-Floquet theorem, it was implemented using the DGSs and CCSIOSs to deliver wideband common-mode noise rejection and a compact size. Finally, to reduce differential-to-common mode conversion noise, an electromagnetic bandgap (EBG) unit cell structure was adopted in the inner line of the bent differential lines. Because this compensates for the length mismatch between the inner and outer lines, differential-to-common mode conversion noise was suppressed using a simple design characterized by a compact size.
Table of Contents
1. Introduction 1 1.1 Motivation for Research 1 1.2 Causes of Common-Mode Noise 2 1.2.1 Asymmetric routing 2 1.2.2 Rising/Falling Time Mismatches 3 1.2.3 Crosstalk 3 1.3 Influence of Common-Mode Noise in High-Speed Electrical Interconnections 4 1.3.1 Electromagnetic Interference 4 1.3.2 Ground Bounce Noise 4 1.4 Types of Common-Mode Filter 5 1.4.1 Common-Mode Chokes 5 1.4.2 Dumbbell-Shaped Defected Ground Structures 6 1.4.3 Electromagnetic Bandgap (EBG) Structures 7 1.5 Differential-to-Common Mode Conversion Noise Suppression Structures in Bent Differential Lines 9 1.6 Conditions for Common-Mode Noise Suppression Structures in High-Speed Electrical Interconnections Based on Differential Signaling 11 1.7 Organization of the Dissertation 12 2. Wideband Common-Mode Noise Suppression Filter Based on Coupled Microstrip Lines and Edge-Coupled Coplanar Waveguides 13 2.1 Introduction 13 2.2 Design of Common-Mode Suppression Filter 15 2.3 Fabricated and Measured Results 24 2.4 Conclusion 28 3. Design and Analysis of Common-Mode Noise Suppression Filter Based on Defected Ground Structures and Capacitive-Coupled Stepped-Impedance Open Stubs 29 3.1 Introduction 29 3.2 Design and Analysis of the Proposed Common-Mode Noise Suppression Filter 31 3.2.1 Analysis of the Unit Cell of the Proposed Filter 31 3.2.2 Dispersion Analysis for the Periodic Unit Cell Structure 47 3.3 Fabrication and Measured Results 52 3.4 Conclusion 59 4. Mitigation of Differential-to-Common Mode Conversion Noise in Bent Differential Lines 60 4.1 Introduction 60 4.2 Bent Differential Lines with EBG Unit Cell Structure 61 4.3 Fabrication and Measured Results 67 4.4 Conclusion 70 5. Conclusions 71 REFERENCES 73
