Title :
The automatized computer workbench for complex multi-frequency measurement at the 5 millimeter wave band
Author :
Nazarchuk, Z.T. ; Dzhala, V.R. ; Kapko, L.I.
Author_Institution :
Karpenko Physico-Mech. Inst. of NASU, Lviv, Ukraine
Abstract :
To carry out the electromagnetic super-high frequency diagnostics of dielectrics on a base of the inverse problem solution it is necessary to provide the automated high-precision measurement of the complex reflection factor (CRF) for electromagnetic field at a set of frequencies. From this point of view the methods of bridge-scheme measurements have some advantages: the competitive simplicity of the bridge construction and measurement scheme, easy calibration, wide frequency range, measurement´s high precision, which in principia depends only from the precision of the calibrated loading. The structure of the automated workbench for multi-frequency measurements of CRF in SHF wave band is considered. The method for CRF measurement with employing of circuit model is proposed. That allows to automate the measurements and avoid the procedure of the joint balancing.
Keywords :
bridge instruments; computerised instrumentation; microwave reflectometry; signal generators; automated high-precision measurement; automatized computer workbench; bridge-scheme measurements; circuit model; complex multifrequency measurement; complex reflection factor; double T-bridge; electromagnetic superhigh frequency diagnostics; sweep-frequency generator; Bridge circuits; Calibration; Dielectric measurements; Electromagnetic fields; Electromagnetic measurements; Electromagnetic reflection; Frequency measurement; Inverse problems; Millimeter wave measurements; Millimeter wave technology;
Conference_Titel :
Physics and Engineering of Microwaves, Millimeter, and Submillimeter Waves, 2004. MSMW 04. The Fifth International Kharkov Symposium on
Print_ISBN :
0-7803-8411-3
DOI :
10.1109/MSMW.2004.1346143