TRL CALIBRATION FOR NONCOAXIAL （为NONCOAXIAL TRL校准）.pdf

, . TRL CALIBRATION FOR NON-COAXIAL MEASUREMENTS Speaker Kevin Rochford Hewlett-Packard Company 29 Burlington Mall Rd Semiconductor Burlington, MA 01803 Test Author Symposium Jim Curran Nfwtwork Measurements Division Hewlett-Packard Company 1400 Fountaingrove Parkway Santa Rosa, CA 95403 r~HEWLETT ~~PACKARD www.HPARCHIVE.com ABSll{ACT A m:ljor problem encountered hell m:lking net\\ork me:lsurel1lents in microstrip or othel non-eo:lxial medi:l. is the need to separate the erreets or the tr:lnsmission media rrom the device characteristics. While \eetor error-correction is userul ror remo\ ing system:ltic errors in microwave networl\ mC:lsurements. the resultant accuracy is dependent on the quality or the calibration standards. Unrortun:ltel~ the impedance stand:lrds used in coaxial measurements arc dirficult to produce for non-coaxial transmission media. A new calibration method, Thru-Reflect-Line, hns been ndded to the HP 85108 network analyzer, which relics onl~ on the charneteristie impedanec or n transmission