Vector Network Analyzer Calibration Using a Line and Two Offset Reflecting Loads

This paper investigates a unified theory to derive vector network analyzer calibration algorithms based on the T-matrix representation, by which means the line-reflect-match (LRM), line-reflect-match-match (LRMM), and the line-reflect-reflect-match (LRRM) calibrations are formulated. The proposed calibration theory is more general than other versions of LRM, LRMM, and LRRM in that an arbitrary known two-port device can be used as the line standard L, rather than a perfect thru or transmission line. Experimental verifications of the proposed theory using on-wafer calibrations from 0.5 GHz to 110 GHz are given.

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“…Different from LRM, the reflection coefficient Γ M of the match standard M is not fully known. With Γ Rk1 = Γ M (k = 3), applying (13) …”

Section: Lrrm Derivationmentioning

confidence: 99%

A Unified Approach for Reformulations of LRM/LRMM/LRRM Calibration Algorithms Based on the T-Matrix Representation

Zhao

Liu²,

Wang

et al. 2017

Applied Sciences

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“…The calibration step of both connector cables and probes are performed using the well‐known short, open, load, SOLT Kit. The systematic errors caused by the connector cables up to the reference plan are removed using the VNA functionality . Comparison of measurement results considering the Air …”

Section: Measurement Fixturementioning

confidence: 99%

New competitive system for tomato's ripeness control

Afendi

Mohamed

Tao³

et al. 2016

Micro & Optical Tech Letters

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The tomatoes production shows a fast growing in the word. The need of fast industrial process to covert the high request of the second more consumed vegetarian produced after the potatoes, have attracted a considerable interest from both academia and industry. In this article, we develop a model based on high frequency structural simulator (HFSS) to evaluate different armatures of tomatoes for real time monitoring process. Unlike previous techniques, based on image processing, the proposed study presents a new approach of tomatoes evaluation. The tomatoes color may differ from side to another, which limits such solution. The proposed system uses the microwave penetration capability in order to perform 3D tomatoes evaluation. The sensitive of dielectric variation in terms of liquids composite of tomatoes, presents a new criteria for ripeness classification. The proposed model is simulated and experimentally approved for different kinds of tomatoes samples. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2901–2905, 2016

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“…According to the LZZ procedure described in [8], four of the seven terms, Y A , Y B , Y C and X Y D D , may be determined using the measurement of the transmission line, provided that the terms / X X A C , X B and X C are known.…”

Section: = T T T T T Tmentioning

confidence: 99%

“…In the LZZ calibration [8], the values of / X X A C and X B are determined using the measurement of the two pairs of offset reflecting loads shown in Fig.1b- (Fig.1b-c). The LZZ calibration requires that the offset-open and offset-short circuits be equally shifted, i.e.…”

Section: = T T T T T Tmentioning

confidence: 99%

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On the implementation of the LZZ calibration technique in the S-parameters measurement of devices mounted in test fixtures

Pulido-Gaytan

Reynoso-Hernández

Maya-Sanchez

et al. 2015

2015 85th Microwave Measurement Conference (ARFTG)

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This paper introduces a methodology for the design and verification of the set of microstrip structures necessary to implement the line, offset-open, offset-short (LZZ) calibration technique in the small-signal characterization of devices mounted in coaxial-to-microstrip test fixtures. The usefulness of the LZZ calibration in such application is verified by comparing the Sparameters of a GaN-HEMT packaged transistor corrected using the LZZ with those corrected using the thru-reflect-line (TRL) calibration technique.

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Vector Network Analyzer Calibration Using a Line and Two Offset Reflecting Loads

Cited by 12 publications

References 19 publications

A Unified Approach for Reformulations of LRM/LRMM/LRRM Calibration Algorithms Based on the T-Matrix Representation

A Unified Approach for Reformulations of LRM/LRMM/LRRM Calibration Algorithms Based on the T-Matrix Representation

New competitive system for tomato's ripeness control

On the implementation of the LZZ calibration technique in the S-parameters measurement of devices mounted in test fixtures

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