Hey SI/MW Expert, How to obtain accurate S11 for 75ohm Zo using Network Analyzer? Currently, I have a 75ohm characteristic impedance DUT which need to perform S11 measurement using network analyzer which have 50ohm impedance internally. From my basic understanding of network analyzer measurement technique, the DUT has to match its respective termination. For my case here which is 75 ohm DUT, it should interconnect to another 75 ohm termination of network analyzer in order to obtain S11. I have perform such configuration inside ADS simulation model setup by having 75ohm termination at the front and back portion respectively towards 75ohm DUT characteristic impedance. Is this S11 simulation result considered appropriate to emulate a 75ohm termination at network analyzer? Cheers, Ji Fong ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.net List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu