Evaluation Engineering - December 2008 - (Page 44) EMC TEST The Importance of Antenna Calibration by Ron Bethel, ETS-Lindgren n the United States and many parts of the world, antennas are calibrated per the American National Standards Institute C63.5: American National Standard for Electromagnetic Compatibility— Radiated Emission Measurements in Electromagnetic Interference (EMI) Control—Calibration of Antennas (9 kHz – 40 GHz). A standard sets uniform methods, processes, and practices for the industry. Some standards may be mandatory while others are voluntary. I forming radiated emissions measurements per FCC Part 15 for low-power devices such as those for information technology equipment. Antenna calibration standards are consensus standards that define methods and practices recommended by and agreed as best practices to be used to ensure consistent results. The user of the item or service has the responsibility of validating the suitability of available standards and specifying and using the correct one. Example of an OATS When standards are required in contractual or regulatory regimes, then they are mandatory. For example, in the widely used ANSI C63.4 standard on measuring emissions, antennas shall be calibrated using ANSI C63.5 in per- ANSI C63.5 was accepted by consensus in the United States while in Europe, Asia, and other countries, alternate antenna calibration standards are being implemented and developed. Yet many still are using ANSI C63.5 4 4 • E E • December 2008 www.e v al u a ti o n e n g i n e e r i n g . c o m http://www.evaluationengineering.com
Table of Contents Feed for the Digital Edition of Evaluation Engineering - December 2008 Evaluation Engineering - December 2008 Contents Editorial Product Briefing Test Software C-V Measurements Nanoelectronics Test Product Guide Company Guide Machine Vision EMC Test Index of Advertisers Evaluation Engineering - December 2008 Evaluation Engineering - December 2008 - Evaluation Engineering - December 2008 (Page Cover1) Evaluation Engineering - December 2008 - Evaluation Engineering - December 2008 (Page Cover2) Evaluation Engineering - December 2008 - Evaluation Engineering - December 2008 (Page 1) Evaluation Engineering - December 2008 - Evaluation Engineering - December 2008 (Page 2) Evaluation Engineering - December 2008 - Contents (Page 3) Evaluation Engineering - December 2008 - Contents (Page 4) Evaluation Engineering - December 2008 - Contents (Page 5) Evaluation Engineering - December 2008 - Editorial (Page 6) Evaluation Engineering - December 2008 - Editorial (Page 7) Evaluation Engineering - December 2008 - Product Briefing (Page 8) Evaluation Engineering - December 2008 - Product Briefing (Page 9) Evaluation Engineering - December 2008 - Product Briefing (Page 10) Evaluation Engineering - December 2008 - Product Briefing (Page 11) Evaluation Engineering - December 2008 - Product Briefing (Page 12) Evaluation Engineering - December 2008 - Product Briefing (Page 13) Evaluation Engineering - December 2008 - Test Software (Page 14) Evaluation Engineering - December 2008 - Test Software (Page 15) Evaluation Engineering - December 2008 - Test Software (Page 16) Evaluation Engineering - December 2008 - Test Software (Page 17) Evaluation Engineering - December 2008 - Test Software (Page 18) Evaluation Engineering - December 2008 - Test Software (Page 19) Evaluation Engineering - December 2008 - C-V Measurements (Page 20) Evaluation Engineering - December 2008 - C-V Measurements (Page 21) Evaluation Engineering - December 2008 - C-V Measurements (Page 22) Evaluation Engineering - December 2008 - C-V Measurements (Page 23) Evaluation Engineering - December 2008 - C-V Measurements (Page 24) Evaluation Engineering - December 2008 - C-V Measurements (Page 25) Evaluation Engineering - December 2008 - Nanoelectronics Test (Page 26) Evaluation Engineering - December 2008 - Nanoelectronics Test (Page 27) Evaluation Engineering - December 2008 - Nanoelectronics Test (Page 28) Evaluation Engineering - December 2008 - Nanoelectronics Test (Page 29) Evaluation Engineering - December 2008 - Nanoelectronics Test (Page 30) Evaluation Engineering - December 2008 - Nanoelectronics Test (Page 31) Evaluation Engineering - December 2008 - Product Guide (Page 32) Evaluation Engineering - December 2008 - Product Guide (Page 33) Evaluation Engineering - December 2008 - Product Guide (Page 34) Evaluation Engineering - December 2008 - Product Guide (Page 35) Evaluation Engineering - December 2008 - Company Guide (Page 36) Evaluation Engineering - December 2008 - Company Guide (Page 37) Evaluation Engineering - December 2008 - Machine Vision (Page 38) Evaluation Engineering - December 2008 - Machine Vision (Page 39) Evaluation Engineering - December 2008 - Machine Vision (Page 40) Evaluation Engineering - December 2008 - Machine Vision (Page 41) Evaluation Engineering - December 2008 - Machine Vision (Page 42) Evaluation Engineering - December 2008 - Machine Vision (Page 43) Evaluation Engineering - December 2008 - EMC Test (Page 44) Evaluation Engineering - December 2008 - EMC Test (Page 45) Evaluation Engineering - December 2008 - EMC Test (Page 46) Evaluation Engineering - December 2008 - EMC Test (Page 47) Evaluation Engineering - December 2008 - EMC Test (Page 48) Evaluation Engineering - December 2008 - EMC Test (Page 49) Evaluation Engineering - December 2008 - EMC Test (Page 50) Evaluation Engineering - December 2008 - EMC Test (Page 51) Evaluation Engineering - December 2008 - Index of Advertisers (Page 52) Evaluation Engineering - December 2008 - Index of Advertisers (Page Cover3) Evaluation Engineering - December 2008 - Index of Advertisers (Page Cover4)
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