{"id":637,"date":"2016-06-22T13:22:39","date_gmt":"2016-06-22T20:22:39","guid":{"rendered":"https:\/\/www.serdesdesign.com\/home\/?page_id=637"},"modified":"2018-09-02T21:12:56","modified_gmt":"2018-09-03T04:12:56","slug":"typical-compare-sparameters-characteristics-and-displays","status":"publish","type":"page","link":"https:\/\/www.serdesdesign.com\/home\/typical-compare-sparameters-characteristics-and-displays\/","title":{"rendered":"Typical Compare SParameters Characteristics and Displays"},"content":{"rendered":"

This section discusses typical Compare S-Parameters Tool characteristics and displays. Let us know if you would like the Compare S-Parameters Tool enhanced with additional capability.<\/p>\n

A typical SerDes channel, with about 18 nsec time delay, defined for use with serial data at a bit rate of 25 Gbps has its hardware 4-Port S-parameters measured from 10 MHz to 40 GHz in steps of 3.125 MHz.<\/p>\n

For this example S-Parameter file (SParamFileA), and with all 4 ports selected for measurement with phase unwrapped, the S-Parameter characteristics can be compared to a second S-Parameter file (SParamFileB).\u00a0 In the default example setup, SParamFileB was generated from SParamFileA using the Generate Causal SParameters Tool<\/a>.<\/p>\n

For this example SParamFileA and SParamFileB, the S-Parameter characteristics can displayed in graphs selected to be opened.<\/p>\n

Figure 1:\u00a0 Reflection S22 magnitude<\/p>\n

\"CompareSParm_Fig1_6-22-2016<\/a><\/p>\n

Besides the magnitude response, the phase response can also be viewed.\u00a0 One can zoom in onto any area in the graph.<\/p>\n

Figure 2:\u00a0 Transmission S21 magnitude<\/p>\n

\"CompareSParm_Fig2_6-22-2016<\/a><\/p>\n

Besides the magnitude response, the phase response can also be viewed.\u00a0 Additionally, the reverse transmission characteristics can be viewed.\u00a0 One can zoom in onto any area in the graph.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

This section discusses typical Compare S-Parameters Tool characteristics and displays. Let us know if you would like the Compare S-Parameters Tool enhanced with additional capability. A typical SerDes channel, with about 18 nsec time delay, defined for use with serial data at a bit rate of 25 Gbps has its hardware 4-Port S-parameters measured from […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"nf_dc_page":"","footnotes":""},"class_list":["post-637","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.serdesdesign.com\/home\/wp-json\/wp\/v2\/pages\/637","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.serdesdesign.com\/home\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.serdesdesign.com\/home\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.serdesdesign.com\/home\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.serdesdesign.com\/home\/wp-json\/wp\/v2\/comments?post=637"}],"version-history":[{"count":1,"href":"https:\/\/www.serdesdesign.com\/home\/wp-json\/wp\/v2\/pages\/637\/revisions"}],"predecessor-version":[{"id":640,"href":"https:\/\/www.serdesdesign.com\/home\/wp-json\/wp\/v2\/pages\/637\/revisions\/640"}],"wp:attachment":[{"href":"https:\/\/www.serdesdesign.com\/home\/wp-json\/wp\/v2\/media?parent=637"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}