Agilent makes VNAs with 75 Ohm ports. If you have to use a 50 Ohm device get a wideband 50Ohm to 75Ohm pad. Steve ji-fong_lim@xxxxxxxxxxx wrote: > 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 > > > > -- Steve Weir Teraspeed Consulting Group LLC 121 North River Drive Narragansett, RI 02882 California office (866) 675-4630 Business (707) 780-1951 Fax Main office (401) 284-1827 Business (401) 284-1840 Fax Oregon office (503) 430-1065 Business (503) 430-1285 Fax http://www.teraspeed.com This e-mail contains proprietary and confidential intellectual property of Teraspeed Consulting Group LLC ------------------------------------------------------------------------------------------------------ Teraspeed(R) is the registered service mark of Teraspeed Consulting Group LLC ------------------------------------------------------------------ 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