Comparison of competing designs for delay-short calibration standards at WR-1.5

Arsenovic, Alexander; Weikle, Robert M.

doi:10.1109/irmmw-thz.2012.6379492

Cited by 4 publications

(4 citation statements)

References 3 publications

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“…Not only does misalignment produce reflections at each flange connection, but it creates measurement inaccuracies by inducing calibration error [3], [4]. While improving the mechanical alignment mechanism is being addressed by the IEEE P1875 working group [5], new calibration algorithms have been developed to operate in the presence of such misalignment [1].…”

Section: Introductionmentioning

confidence: 99%

Two port calibration insensitive to flange misalignment

Arsenovic

Weikle

Hesler

2014

84th ARFTG Microwave Measurement Conference

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As waveguide measurements continue to push upwards in frequency, waveguide misalignment becomes a severe problem. In this paper we combine two known calibration algorithms; the SDDL and Usuggest that inaccuracies in the predicted response of the radiating open limits the perfornknown Thru, to create a two-port calibration insensitive to flange misalignment. The resultant algorithm, termed Misalignment Resistant Calibration (MRC), is numerically verified and tested experimentally. While the numerical simulation proves that MRC works as intended, the experimental results suggest that inaccuracies in the predicted response of the radiating open limits the performance of the MRC algorithm in practice.

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Section: Introductionmentioning

confidence: 99%

Two port calibration insensitive to flange misalignment

Arsenovic

Weikle

Hesler

2014

84th ARFTG Microwave Measurement Conference

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“…Currently, there are efforts to evaluate competing design variations of traditional standards [10], introduce novel standards [12], and improve alignment precision by creation of new flange specifications [11].…”

Section: Delay Shorts Of Unknown Lengthmentioning

confidence: 99%

“…Measurements were made using a one-port WR-1. shorts, but they have larger misalignment uncertainty than the milled design [56].…”

Section: Rectangular Waveguidementioning

confidence: 99%

“…Not only does misalignment produce reflections at each flange connection, but it creates measurement inaccuracies by inducing calibration error [10]. This 1.1 Motivation problem is being addressed by the IEEE P1875 working group [2,3,11]. Other improvements to the terahertz measurement infrastructure are being made in the form of specialized measurement procedures and improved calibration algorithms [6,7].…”

Section: Chapter Introductionmentioning

confidence: 99%

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Current Problems on the Forefront of the THz Metrology, and Calibration

Arsenovic

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The terahertz spectrum, often defined as the 300GHz-3THz frequency band, is a relatively unexplored segment of the electromagnetic spectrum, lying between the microwave and far infrared regions. Although measurement capabilities at these frequencies are just now being realized, there are already numerous applications such as imaging, spectroscopy, radio astronomy, and medical diagnostics[1]. To support this growing industry, a proper measurement infrastructure is needed, similar to what is currently available at 100 GHz and below. Efforts to develop the hardware[2, 3] and components[4, 5] needed to realize this measurement infrastructure are being made. Complementary to these advances in new hardware, specialized measurement procedures and improved calibration algorithms are being created[6, 7]. This work presents contributions to the field of terahertz metrology, specifically to the area of calibration and uncertainty analysis. i List of Tables 1.1. Companies and research laboratories that are involved with terahertz

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