1984
DOI: 10.1088/0022-3735/17/1/006
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A precision method for measuring the complex permittivity of solid tissue in the frequency domain between 2 and 18 GHz

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Cited by 10 publications
(2 citation statements)
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“…This complex reflection coefficient of the sample, in turn, can be related back to the complex permittivity of the sample under test. Such methods typically make use of a calibrated Vector Network Analyzer (VNA) to carry out the measurements, although many of the reflectometric spectroscopy methods were in place long before VNAs became widely available, when slotted lines and waveguide null bridges were common techniques used to measure the reflection coefficient [52][53].…”
Section: Reflectometric Methodsmentioning
confidence: 99%
“…This complex reflection coefficient of the sample, in turn, can be related back to the complex permittivity of the sample under test. Such methods typically make use of a calibrated Vector Network Analyzer (VNA) to carry out the measurements, although many of the reflectometric spectroscopy methods were in place long before VNAs became widely available, when slotted lines and waveguide null bridges were common techniques used to measure the reflection coefficient [52][53].…”
Section: Reflectometric Methodsmentioning
confidence: 99%
“…However, it should be noted that this type of absolute measuement is not tolerant of any simplifying assumptions in the theoretical derivation of the models or in their numerical solutions and that it is equally demanding on component perfection and engineering exactitude. It is for these reasons that the most successful techniques, such as the well known von Hippel technique (Roberts and von Hippel 1946) and its many modern adaptations (Steel et al 1984, Buckmaster et al 1990, incorporate elements of self-calibration that effectively eliminate the effects of systematic imperfections.…”
Section: A Comparison Between the Admittance Modelsmentioning
confidence: 99%