Patent ID: 8000919

Claim:
A method for characterizing a partially symmetrical test fixture, comprising the steps of: providing a partially symmetrical test fixture; assigning a partial symmetric constraint of Sx 22 =Sy 11 ; assigning a designation x to one portion of said test fixture having S-parameters Sx 11 , Sx 12 =Sx 21 , and Sx 22 and a designation y to the remainder of said test fixture having S-parameters Sy 11 , Sy 12 Sy 21 and Sy 22 for computation purposes; obtaining S-parameters Sf 11 , Sf 12 , and Sf 22 of said test fixture through two port measurements using a Vector Network Analyzer (VNA) or a Time Domain Reflectometer (TDR); obtaining S-parameters Sx 11 and Sy 22 through two port measurements using a time domain gating method; solving = ± ( Sf 11 - Sx 11 ) ⁢ ( Sf 22 - Sy 22 ) Sf 12 2 ; solving = ± ( Sf 11 - Sx 11 ) ⁢ ( 1 - Sx 22 2 ) Sx 22 ; ⁢ and solving = ± ( Sf 22 - Sy 22 ) ⁢ ( 1 - Sx 22 2 ) Sx 22 .