Available:*
Library | Item Barcode | Call Number | Material Type | Item Category 1 | Status |
---|---|---|---|---|---|
Searching... | 30000010235668 | TK7867.5 O87 2009 | Open Access Book | Book | Searching... |
On Order
Summary
Summary
Praise for Noise Reduction Techniques IN electronic systems
"Henry Ott has literally 'written the book' on the subject of EMC. . . . He not only knows the subject, but has the rare ability to communicate that knowledge to others."
-- EE Times
Electromagnetic Compatibility Engineering is a completely revised, expanded, and updated version of Henry Ott's popular book Noise Reduction Techniques in Electronic Systems. It reflects the most recent developments in the field of electromagnetic compatibility (EMC) and noise reduction¿and their practical applications to the design of analog and digital circuits in computer, home entertainment, medical, telecom, industrial process control, and automotive equipment, as well as military and aerospace systems.
While maintaining and updating the core information--such as cabling, grounding, filtering, shielding, digital circuit grounding and layout, and ESD--that made the previous book such a wide success, this new book includes additional coverage of:
Equipment/systems grounding
Switching power supplies and variable-speed motor drives
Digital circuit power distribution and decoupling
PCB layout and stack-up
Mixed-signal PCB layout
RF and transient immunity
Power line disturbances
Precompliance EMC measurements
New appendices on dipole antennae, the theory of partial inductance, and the ten most common EMC problems
The concepts presented are applicable to analog and digital circuits operating from below audio frequencies to those in the GHz range. Throughout the book, an emphasis is placed on cost-effective EMC designs, with the amount and complexity of mathematics kept to the strictest minimum.
Complemented with over 250 problems with answers, Electromagnetic Compatibility Engineering equips readers with the knowledge needed to design electronic equipment that is compatible with the electromagnetic environment and compliant with national and international EMC regulations. It is an essential resource for practicing engineers who face EMC and regulatory compliance issues and an ideal textbook for EE courses at the advanced undergraduate and graduate levels.
Author Notes
Henry W. Ott is President and Principal Consultant of Henry Ott Consultants, an EMC/ESD training and consulting organization located in Livingston, New Jersey. Mr. Ott is considered by many to be the nation's leading EMC educator.
Table of Contents
Preface | p. xxiii |
Part 1 EMC Theory | p. 1 |
1 Electromagnetic Compatibility | p. 3 |
1.1 Introduction | p. 3 |
1.2 Noise and Interference | p. 3 |
1.3 Designing for Electromagnetic Compatibility | p. 4 |
1.4 Engineering Documentation and EMC | p. 6 |
1.5 United States' EMC Regulations | p. 6 |
1.5.1 FCC Regulations | p. 6 |
1.5.2 FCC Part 15, Subpart B | p. 8 |
1.5.3 Emissions | p. 11 |
1.5.4 Administrative Procedures | p. 14 |
1.5.5 Susceptibility | p. 17 |
1.5.6 Medical Equipment | p. 17 |
1.5.7 Telecom | p. 18 |
1.5.8 Automotive | p. 19 |
1.6 Canadian EMC Requirements | p. 19 |
1.7 European Union's EMC Requirements | p. 20 |
1.7.1 Emission Requirements | p. 20 |
1.7.2 Harmonics and Flicker | p. 22 |
1.7.3 Immunity Requirements | p. 23 |
1.7.4 Directives and Standards | p. 23 |
1.8 International Harmonization | p. 26 |
1.9 Military Standards p. 27 | |
1.10 Avionics p. 28 | |
1.11 The Regulatory Process | p. 30 |
1.12 Typical Noise Path | p. 30 |
1.13 Methods of Noise Coupling | p. 31 |
1.13.1 Conductively Coupled Noise | p. 31 |
1.13.2 Common Impedance Coupling | p. 32 |
1.13.3 Electric and Magnetic Field Coupling | p. 33 |
1.14 Miscellaneous Noise Sources | p. 33 |
1.14.1 Galvanic Action | p. 33 |
1.14.2 Electrolytic Action | p. 35 |
1.14.3 Triboelectric Effect | p. 35 |
1.14.4 Conductor Motion | p. 36 |
1.15 Use of Network Theory | p. 36 |
Summary | p. 38 |
Problems | p. 39 |
References | p. 41 |
Further Reading | p. 42 |
2 Cabling | p. 44 |
2.1 Capacitive Coupling | p. 45 |
2.2 Effect of Shield on Capacitive Coupling | p. 48 |
2.3 Inductive Coupling | p. 52 |
2.4 Mutual Inductance Calculations | p. 54 |
2.5 Effect of Shield on Magnetic Coupling | p. 56 |
2.5.1 Magnetic Coupling Between Shield and Inner Conductor | p. 58 |
2.5.2 Magnetic Coupling-Open Wire to Shielded Conductor | p. 61 |
2.6 Shielding to Prevent Magnetic Radiation | p. 64 |
2.7 Shielding a Receptor Against Magnetic Fields | p. 67 |
2.8 Common Impedance Shield Coupling | p. 69 |
2.9 Experimental Data p. 70 | |
2.10 Example of Selective Shielding p. 74 | |
2.11 Shield Transfer Impedance | p. 75 |
2.12 Coaxial Cable Versus Twisted Pair | p. 75 |
2.13 Braided Shields | p. 79 |
2.14 Spiral Shields | p. 81 |
2.15 Shield Terminations | p. 84 |
2.15.1 Pigtails | p. 84 |
2.15.2 Grounding of Cable Shields | p. 88 |
2.16 Ribbon Cables | p. 94 |
2.17 Electrically Long Cables | p. 96 |
Summary | p. 96 |
Problems | p. 98 |
References | p. 103 |
Further Reading | p. 104 |
3 Grounding | p. 106 |
3.1 AC Power Distribution and Safety Grounds | p. 107 |
3.1.1 Service Entrance | p. 108 |
3.1.2 Branch Circuits | p. 109 |
3.1.3 Noise Control | p. 111 |
3.1.4 Earth Grounds | p. 114 |
3.1.5 Isolated Grounds | p. 116 |
3.1.6 Separately Derived Systems | p. 118 |
3.1.7 Grounding Myths | p. 119 |
3.2 Signal Grounds | p. 120 |
3.2.1 Single-Point Ground Systems | p. 124 |
3.2.2 Multipoint Ground Systems | p. 126 |
3.2.3 Common Impedance Coupling | p. 128 |
3.2.4 Hybrid Grounds | p. 130 |
3.2.5 Chassis Grounds | p. 131 |
3.3 Equipment/System Grounding | p. 132 |
3.3.1 Isolated Systems | p. 133 |
3.3.2 Clustered Systems | p. 133 |
3.3.3 Distributed Systems | p. 140 |
3.4 Ground Loops | p. 142 |
3.5 Low-Frequency Analysis of Common-Mode Choke | p. 147 |
3.6 High-Frequency Analysis of Common-Mode Choke | p. 152 |
3.7 Single Ground Reference for a Circuit | p. 154 |
Summary | p. 155 |
Problems | p. 156 |
References | p. 157 |
Further Reading | p. 157 |
4 Balancing and Filtering | p. 158 |
4.1 Balancing | p. 158 |
4.1.1 Common-Mode Rejection Ratio | p. 161 |
4.1.2 Cable Balance | p. 165 |
4.1.3 System Balance | p. 166 |
4.1.4 Balanced Loads | p. 166 |
4.2 Filtering | p. 174 |
4.2.1 Common-Mode Filters | p. 174 |
4.2.2 Parasitic Effects in Filters | p. 177 |
4.3 Power Supply Decoupling | p. 178 |
4.3.1 Low-Frequency Analog Circuit Decoupling | p. 183 |
4.3.2 Amplifier Decoupling | p. 185 |
4.4 Driving Capacitive Loads | p. 186 |
4.5 System Bandwidth | p. 188 |
4.6 Modulation and Coding | p. 190 |
Summary | p. 190 |
Problems | p. 191 |
References | p. 192 |
Further Reading | p. 193 |
5 Passive Components | p. 194 |
5.1 Capacitors | p. 194 |
5.1.1 Electrolytic Capacitors | p. 195 |
5.1.2 Film Capacitors | p. 197 |
5.1.3 Mica and Ceramic Capacitors | p. 198 |
5.1.4 Feed-Through Capacitors | p. 200 |
5.1.5 Paralleling Capacitors | p. 202 |
5.2 Inductors | p. 203 |
5.3 Transformers | p. 204 |
5.4 Resistors | p. 206 |
5.4.1 Noise in Resistors | p. 207 |
5.5 Conductors | p. 208 |
5.5.1 Inductance of Round Conductors | p. 209 |
5.5.2 Inductance of Rectangular Conductors | p. 210 |
5.5.3 Resistance of Round Conductors | p. 211 |
5.5.4 Resistance of Rectangular Conductors | p. 213 |
5.6 Transmission Lines | p. 215 |
5.6.1 Characteristic Impedance | p. 217 |
5.6.2 Propagation Constant | p. 220 |
5.6.3 High-Frequency Loss | p. 221 |
5.6.4 Relationship Among C, L and ¿r. | p. 224 |
5.6.5 Final Thoughts | p. 225 |
5.7 Ferrites | p. 225 |
Summary | p. 233 |
Problems | p. 234 |
References | p. 237 |
Further Reading | p. 237 |
6 Shielding | p. 238 |
6.1 Near Fields and Far Fields | p. 238 |
6.2 Characteristic and Wave Impedances | p. 241 |
6.3 Shielding Effectiveness | p. 243 |
6.4 Absorption Loss | p. 245 |
6.5 Reflection Loss | p. 249 |
6.5.1 Reflection Loss to Plane Waves | p. 252 |
6.5.2 Reflection Loss in the Near Field | p. 253 |
6.5.3 Electric Field Reflection Loss | p. 254 |
6.5.4 Magnetic Field Reflection Loss | p. 255 |
6.5.5 General Equations for Reflection Loss | p. 256 |
6.5.6 Multiple Reflections in Thin Shields | p. 256 |
6.6 Composite Absorption and Reflection Loss | p. 257 |
6.6.1 Plane Waves | p. 257 |
6.6.2 Electric Fields | p. 258 |
6.6.3 Magnetic Fields | p. 259 |
6.7 Summary of Shielding Equations | p. 260 |
6.8 Shielding with Magnetic Materials | p. 260 |
6.9 Experimental Data p. 265 | |
6.10 Apertures p. 267 | |
6.10.1 Multiple Apertures | p. 270 |
6.10.2 Seams | p. 273 |
6.10.3 Transfer Impedance | p. 277 |
6.11 Waveguide Below Cutoff | p. 280 |
6.12 Conductive Gaskets | p. 282 |
6.12.1 Joints of Dissimilar Metals | p. 283 |
6.12.2 Mounting of Conductive Gaskets | p. 284 |
6.13 The "Ideal" Shield | p. 287 |
6.14 Conductive Windows | p. 288 |
6.14.1 Transparent Conductive Coatings | p. 288 |
6.14.2 Wire Mesh Screens | p. 289 |
6.14.3 Mounting of Windows | p. 289 |
6.15 Conductive Coatings | p. 289 |
6.15.1 Conductive Paints | p. 291 |
6.15.2 Flame/Arc Spray | p. 291 |
6.15.3 Vacuum Metalizing | p. 291 |
6.15.4 Electroless Plating | p. 292 |
6.15.5 Metal Foil Linings | p. 292 |
6.15.6 Filled Plastic | p. 293 |
6.16 Internal Shields | p. 293 |
6.17 Cavity Resonance | p. 295 |
6.18 Grounding of Shields | p. 296 |
Summary | p. 296 |
Problems | p. 297 |
References | p. 299 |
Further Reading | p. 300 |
7 Contact Protection | p. 302 |
7.1 Glow Discharges | p. 302 |
7.2 Metal-Vapor or Arc Discharges | p. 303 |
7.3 AC Versus DC Circuits | p. 305 |
7.4 Contact Material | p. 306 |
7.5 Contact Rating | p. 306 |
7.6 Loads with High Inrush Currents | p. 307 |
7.7 Inductive Loads | p. 308 |
7.8 Contact Protection Fundamentals | p. 310 |
7.9 Transient Suppression for Inductive Loads p. 314 | |
7.10 Contact Protection Networks for Inductive Loads p. 318 | |
7.10.1 C Network | p. 318 |
7.10.2 R-C Network | p. 318 |
7.10.3 R-C-D Network | p. 321 |
7.11 Inductive Loads Controlled by a Transistor Switch | p. 322 |
7.12 Resistive Load Contact Protection | p. 323 |
7.13 Contact Protection Selection Guide | p. 323 |
7.14 Examples | p. 324 |
Summary | p. 325 |
Problems | p. 326 |
References | p. 327 |
Further Reading | p. 327 |
8 Intrinsic Noise Sources | p. 328 |
8.1 Thermal Noise | p. 328 |
8.2 Characteristics of Thermal Noise | p. 332 |
8.3 Equivalent Noise Bandwidth | p. 334 |
8.4 Shot Noise | p. 337 |
8.5 Contact Noise | p. 338 |
8.6 Popcorn Noise | p. 339 |
8.7 Addition of Noise Voltages | p. 340 |
8.8 Measuring Random Noise | p. 341 |
Summary | p. 342 |
Problems | p. 343 |
References | p. 345 |
Further Reading | p. 345 |
9 Active Device Noise | p. 346 |
9.1 Noise Factor | p. 346 |
9.2 Measurement of Noise Factor | p. 349 |
9.2.1 Single-Frequency Method | p. 349 |
9.2.2 Noise Diode Method | p. 350 |
9.3 Calculating S/N Ratio and Input Noise Voltage from Noise Factor | p. 351 |
9.4 Noise Voltage and Current Model | p. 353 |
9.5 Measurment of Vn and In | p. 355 |
9.6 Calculating Noise Factor and S/N Radio from Vn-In | p. 356 |
9.7 Optimum Source Resistance | p. 357 |
9.8 Noise Factor of Cascaded Stages | p. 360 |
9.9 Noise Temperature p. 362 | |
9.10 Bipolar Transistor Noise p. 364 | |
9.10.1 Transistor Noise Factor | p. 365 |
9.10.2 Vn-In for Transistors | p. 367 |
9.11 Field-Effect Transistor Noise | p. 368 |
9.11.1 FET Noise Factor | p. 368 |
9.11.2 Vn-In Representation of FET Noise | p. 370 |
9.12 Noise in Operational Amplifiers | p. 370 |
9.12.1 Methods of Specifying Op-Amp Noise | p. 373 |
9.12.2 Op-Amp Noise Factor | p. 375 |
Summary | p. 375 |
Problems | p. 376 |
References | p. 377 |
Further Reading | p. 378 |
10 Digital Circuit Grounding p. 379 | |
10.1 Frequency Versus Time Domain | p. 380 |
10.2 Analog Versus Digital Circuits | p. 380 |
10.3 Digital Logic Noise | p. 380 |
10.4 Internal Noise Sources | p. 381 |
10.5 Digital Circuit Ground Noise | p. 384 |
10.5.1 Minimizing Inductance | p. 385 |
10.5.2 Mutual Inductance | p. 386 |
10.5.3 Practical Digital Circuit Ground Systems | p. 388 |
10.5.4 Loop Area | p. 390 |
10.6 Ground Plane Current Distribution and Impedance | p. 391 |
10.6.1 Reference Plane Current Distribution | p. 392 |
10.6.2 Ground Plane Impedance | p. 400 |
10.6.3 Ground Plane Voltage | p. 408 |
10.6.4 End Effects | p. 409 |
10.7 Digital Logic Current Flow | p. 412 |
10.7.1 Microstrip Line | p. 414 |
10.7.2 Stripline | p. 415 |
10.7.3 Digital Circuit Current Flow Summary | p. 418 |
Summary | p. 419 |
Problems | p. 420 |
References | p. 421 |
Further Reading | p. 422 |
Part 2 EMC Applications | p. 423 |
11 Digital Circuit Power Distribution | p. 425 |
11.1 Power Supply Decoupling | p. 425 |
11.2 Transient Power Supply Currents | p. 426 |
11.2.1 Transient Load Current | p. 428 |
11.2.2 Dynamic Internal Current | p. 428 |
11.2.3 Fourier Spectrum of the Transient Current | p. 429 |
11.2.4 Total Transient Current | p. 431 |
11.3 Decoupling Capacitors | p. 431 |
11.4 Effective Decoupling Strategies | p. 436 |
11.4.1 Multiple Decoupling Capacitors | p. 437 |
11.4.2 Multiple Capacitors of the Same Value | p. 437 |
11.4.3 Multiple Capacitors of Two Different Values | p. 440 |
11.4.4 Multiple Capacitors of Many Different Values | p. 444 |
11.4.5 Target Impedance | p. 445 |
11.4.6 Embedded PCB Capacitance | p. 447 |
11.4.7 Power Supply Isolation | p. 452 |
11.5 The Effect of Decoupling on Radiated Emissions | p. 454 |
11.6 Decoupling Capacitor Type and Value | p. 456 |
11.7 Decoupling Capacitor Placement and Mounting | p. 457 |
11.8 Bulk Decoupling Capacitors | p. 459 |
11.9 Power Entry Filters | p. 460 |
Summary | p. 461 |
Problems | p. 461 |
References | p. 463 |
Further Reading | p. 463 |
12 Digital Circuit Radiation | p. 464 |
12.1 Differential-Mode Radiation | p. 465 |
12.1.1 Loop Area | p. 468 |
12.1.2 Loop Current | p. 468 |
12.1.3 Fourier Series | p. 468 |
12.1.4 Radiated Emission Envelope | p. 470 |
12.2 Controlling Differential-Mode Radiation | p. 471 |
12.2.1 Board Layout | p. 471 |
12.2.2 Canceling Loops | p. 474 |
12.2.3 Dithered Clocks | p. 475 |
12.3 Common-Mode Radiation | p. 477 |
12.4 Controlling Common-Mode Radiation | p. 480 |
12.4.1 Common-Mode Voltage | p. 481 |
12.4.2 Cable Filtering and Shielding | p. 482 |
12.4.3 Separate I/O Grounds | p. 485 |
12.4.4 Dealing With Common-Mode Radiation Issues | p. 488 |
Summary | p. 488 |
Problems | p. 489 |
References | p. 490 |
Further Reading | p. 491 |
13 Conducted Emissions | p. 492 |
13.1 Power Line Impedance | p. 492 |
13.1.1 Line Impedance Stabilization Network | p. 494 |
13.2 Switched-Mode Power Supplies | p. 495 |
13.2.1 Common-Mode Emissions | p. 498 |
13.2.2 Differential-Mode Emissions | p. 501 |
13.2.3 DC-to-DC Converters | p. 509 |
13.2.4 Rectifier Diode Noise | p. 509 |
13.3 Power-Line Filters | p. 511 |
13.3.1 Common-Mode Filtering | p. 512 |
13.3.2 Differential-Mode Filtering | p. 512 |
13.3.3 Leakage Inductance | p. 513 |
13.3.4 Filter Mounting | p. 516 |
13.3.5 Power Supplies with Integral Power-Line Filters | p. 519 |
13.3.6 High-Frequency Noise | p. 520 |
13.4 Primary-to-Secondary Common-Mode Coupling | p. 523 |
13.5 Frequency Dithering | p. 524 |
13.6 Power Supply Instability | p. 524 |
13.7 Magnetic Field Emissions | p. 525 |
13.8 Variable Speed Motor Drives | p. 528 |
13.9 Harmonic Suppression | p. 536 |
13.9.1 Inductive Input Filters | p. 538 |
13.9.2 Active Power Factor Correction | p. 538 |
13.9.3 AC Line Reactors | p. 539 |
Summary | p. 541 |
Problems | p. 542 |
References | p. 544 |
Further Reading | p. 544 |
14 RF and Transient Immunity | p. 545 |
14.1 Performance Criteria | p. 545 |
14.2 RF Immunity | p. 546 |
14.2.1 The RF Environment | p. 547 |
14.2.2 Audio Rectification | p. 548 |
14.2.3 RFI Mitigation Techniques | p. 549 |
14.3 Transient Immunity | p. 557 |
14.3.1 Electrostatic Discharge | p. 558 |
14.3.2 Electrical Fast Transient | p. 558 |
14.3.3 Lightning Surge | p. 559 |
14.3.4 Transient Suppression Networks | p. 560 |
14.3.5 Signal Line Suppression | p. 561 |
14.3.6 Protection of High-Speed Signal Lines | p. 564 |
14.3.7 Power Line Transient Suppression | p. 566 |
14.3.8 Hybrid Protection Network | p. 570 |
14.4 Power Line Disturbances | p. 572 |
14.4.1 Power Line Immunity Curve | p. 573 |
Summary | p. 575 |
Problems | p. 576 |
References | p. 578 |
Further Reading | p. 579 |
15 Electrostatic Discharge | p. 580 |
15.1 Static Generation | p. 580 |
15.1.1 Inductive Charging | p. 583 |
15.1.2 Energy Storage | p. 585 |
15.2 Human Body Model | p. 587 |
15.3 Static Discharge | p. 589 |
15.3.1 Decay Time | p. 590 |
15.4 ESD Protection in Equipment Design | p. 592 |
15.5 Preventing ESD Entry | p. 594 |
15.5.1 Metallic Enclosures | p. 595 |
15.5.2 Input/Output Cable Treatment | p. 599 |
15.5.3 Insulated Enclosures | p. 604 |
15.5.4 Keyboards and Control Panels | p. 607 |
15.6 Hardening Sensitive Circuits | p. 608 |
15.7 ESD Grounding | p. 608 |
15.8 Nongrounded Products | p. 609 |
15.9 Field-Induced Upset | p. 610 |
15.9.1 Inductive Coupling | p. 611 |
15.9.2 Capacitive Coupling | p. 611 |
15.10 Transient Hardened Software Design | p. 612 |
15.10.1 Detecting Errors in Program Flow | p. 613 |
15.10.2 Detecting Errors in Input/Output | p. 614 |
15.10.3 Detecting Errors in Memory | p. 616 |
15.11 Time Windows | p. 617 |
Summary | p. 617 |
Problems | p. 619 |
References | p. 620 |
Further Reading | p. 621 |
16 PCB Layout and Stackup | p. 622 |
16.1 General PCB Layout Considerations | p. 622 |
16.1.1 Partitioning | p. 622 |
16.1.2 Keep Out Zones | p. 622 |
16.1.3 Critical Signals | p. 623 |
16.1.4 System Clocks | p. 624 |
16.2 PCB-to-Chassis Ground Connection | p. 625 |
16.3 Return Path Discontinuities | p. 626 |
16.3.1 Slots in Ground/Power Planes | p. 627 |
16.3.2 Split Ground/Power Planes | p. 628 |
16.3.3 Changing Reference Planes | p. 630 |
16.3.4 Referencing the Top and Bottom of the Same Plane | p. 633 |
16.3.5 Connectors | p. 634 |
16.3.6 Ground Fill | p. 634 |
16.4 PCB Layer Stackup | p. 635 |
16.4.1 One- and Two-Layer Boards | p. 636 |
16.4.2 Multilayer Boards | p. 637 |
16.4.3 General PCB Design Procedure | p. 653 |
Summary | p. 655 |
Problems | p. 657 |
References | p. 658 |
Further Reading | p. 658 |
17 Mixed-Signal PCB Layout | p. 660 |
17.1 Split Ground Planes | p. 660 |
17.2 Microstrip Ground Plane Current Distribution | p. 662 |
17.3 Analog and Digital Ground Pins | p. 665 |
17.4 When Should Split Ground Planes Be Used? | p. 668 |
17.5 Mixed Signal ICs | p. 669 |
17.5.1 Multi-Board Systems | p. 671 |
17.6 High-Resolution A/D and D/A Converters | p. 671 |
17.6.1 Stripline | p. 673 |
17.6.2 Asymmetric Stripline | p. 674 |
17.6.3 Isolated Analog and Digital Ground Planes | p. 675 |
17.7 A/D and D/A Converter Support Circuitry | p. 676 |
17.7.1 Sampling Clocks | p. 676 |
17.7.2 Mixed-Signal Support Circuitry | p. 678 |
17.8 Vertical Isolation | p. 679 |
17.9 Mixed-Signal Power Distribution | p. 681 |
17.9.1 Power Distribution | p. 681 |
17.9.2 Decoupling | p. 682 |
17.10 The IPC Problem | p. 684 |
Summary | p. 685 |
Problems | p. 686 |
References | p. 687 |
Further Reading | p. 687 |
18 Precompliance EMC Measurements | p. 688 |
18.1 Test Environment | p. 689 |
18.2 Antennas Versus Probes | p. 689 |
18.3 Common-Mode Currents on Cables | p. 690 |
18.3.1 Test Procedure | p. 693 |
18.3.2 Cautions | p. 693 |
18.4 Near Field Measurements | p. 694 |
18.4.1 Test Procedure | p. 695 |
18.4.2 Cautions | p. 696 |
18.4.3 Seams and Apertures in Enclosures | p. 697 |
18.5 Noise Voltage Measurements | p. 697 |
18.5.1 Balanced Differential Probe | p. 698 |
18.5.2 DC to 1-GHz Probe | p. 700 |
18.5.3 Cautions | p. 700 |
18.6 Conducted Emission Testing | p. 700 |
18.6.1 Test Procedure | p. 702 |
18.6.2 Cautions | p. 703 |
18.6.3 Separating C-M from D-M Noise | p. 704 |
18.7 Spectrum Analyzers | p. 707 |
18.7.1 Detector Functions | p. 709 |
18.7.2 General Test Procedure | p. 710 |
18.8 EMC Crash Cart | p. 711 |
18.8.1 Mitigation Parts List | p. 712 |
18.9 One-Meter Radiated Emission Measurements | p. 713 |
18.9.1 Test Environment | p. 713 |
18.9.2 Limits for 1-m Testing | p. 713 |
18.9.3 Antennas for 1-m Testing | p. 714 |
18.10 Precompliance Immunity Testing | p. 717 |
18.10.1 Radiated Immunity | p. 717 |
18.10.2 Conducted Immunity | p. 720 |
18.10.3 Transient Immunity | p. 721 |
18.11 Precompliance Power Quality Tests | p. 723 |
18.11.1 Harmonics | p. 724 |
18.11.2 Flicker | p. 725 |
18.12 Margin | p. 726 |
18.12.1 Radiated Emission Margin | p. 726 |
18.12.2 Electrostatic Discharge Margin | p. 727 |
Summary | p. 728 |
Problems | p. 729 |
References | p. 730 |
Further Reading | p. 731 |
Appendix | p. 733 |
A The Decibel | p. 733 |
A.1 Properties of Logarithms | p. 733 |
A.2 Using the Decibel for Other than Power Measurements | p. 734 |
A.3 Power Loss or Negative Power Gain | p. 736 |
A.4 Absolute Power Level | p. 736 |
A.5 Summing Powers Expressed in Decibels | p. 738 |
B The Ten Best Ways to Maximize the Emission from Your Product | p. 740 |
C Multiple Reflections of Magnetic Fields in Thin Shields | p. 743 |
D Dipoles for Dummies | p. 746 |
D.1 Basic Dipoles for Dummies | p. 746 |
D.2 Intermediate Dipoles for Dummies | p. 751 |
D.3 Advanced Dipoles for Dummies | p. 756 |
D.3.1 Impedance of a Dipole | p. 756 |
D.3.2 Dipole Resonance | p. 756 |
D.3.3 Receiving Dipole | p. 759 |
D.3.4 Theory of Images | p. 759 |
D.3.5 Dipole Arrays | p. 761 |
D.3.6 Very High-Frequency Dipoles | p. 763 |
Summary | p. 763 |
Further Reading | p. 764 |
E Partial Inductance | p. 765 |
E.1 Inductance | p. 765 |
E.2 Loop Inductance | p. 767 |
E.2.1 Inductance of a Rectangular Loop | p. 768 |
E.3 Partial Inductance | p. 770 |
E.3.1 Partial Self-Inductance | p. 771 |
E.3.2 Partial Mutual Inductance | p. 773 |
E.3.3 Net Partial-Inductance | p. 776 |
E.3.4 Partial Inductance Applications | p. 776 |
E.3.5 Transmission Line Example | p. 778 |
E.4 Ground Plane Inductance Measurement Test Setup | p. 780 |
E.5 Inductance Notation | p. 785 |
Summary | p. 788 |
References | p. 788 |
Further Reading | p. 789 |
F Answers to Problems | p. 790 |
Index | p. 825 |