Dear Grace, please find my answers below and do not hesitate to contact me if you need further information. With best regards,
Toralf Jahn Eurofins ETS Product Service GmbH Storkower Str. 38c D-15526 Reichenwalde GERMANY Phone: +49-33631-888 214 Fax: +49-33631-888 660 Email: [email protected] URL: www.ets-ps.com <http://www.ets-ps.com/> _____ From: [email protected] [mailto:[email protected]] On Behalf Of Grace Lin Sent: Thursday, December 20, 2007 1:36 PM To: [email protected] Subject: Antenna Pattern Dear Members, Could you please share your knowledge about antenna pattern measurement? I am asked to look into the capability to perfom this measurement. My questions are: 1. Is there any particular site/chamber requriement, such as a full anechoic chamber, etc.? [Toralf Jahn] CTIA requires less than a 1 dB ripple in the test volume in order to achieve a 2 dB overall measurement uncertainty. This can not be achieved in a semi anechoic chamber. 2. Is any particular instrument required in addtion to a spectrum analyzer/receiver and antennas for radiated emission measurement per FCC Part 15? [Toralf Jahn] Signal Generator to measure the path loss and a low dielectric, two axes manipulator to rotate the Antenna Under Test in three axes. 3. Is software/firmware available for antenna pattern measurement? [Toralf Jahn] e.g. Rohde & Schwarz and Orbit which I have no experience with. ETS-Lindgren I can not recommend. 4. How to look for the labs that provide services for this measurement? [Toralf Jahn] A lab like us with a CTIA accreditation for OTA (Over the Air Performance) has experience and approved quality for three dimensional antenna pattern measurements at least for mobile phones. Thank you and look forward to hearing from you. Best regards, Grace - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc _____ 2008-01-08 15:32: This mail has passed a server-based virus scan. [ETS Product Service AG] - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
