Revisiting and improvement of thru‐reflect‐line calibration for accurate measurement of substrate integrated waveguide components

Substrate integrated waveguide (SIW) technology is widely known transmission line technology adapted for use in various types of microwave circuits. This article deals with the analysis and design of a phase shifter based on the SIW technology. With simulation and measurement results obtained from the phase shifter with using air holes inside the structure, a test circuit was designed and manufactured. Results show that a phase balance of less than 10° is achieved with the experimental setup. The return loss value is better than 15 dB for working frequency band 8.85 GHz − 9GHz. The main benefit of this work is the easy of implementation air holes inside the structure and also the easy of manufacture of the circuits for antenna arrays, where a certain number of identical circuits is usually needed.

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“…8, comparison of the simulation and measurement results are shown. During the measurement, the TRL calibration [12], see Fig. 13, was applied.…”

Section: Comparison Of Phase Shiftersmentioning

confidence: 99%

Phase shifter based on the substrate integrated waveguide technology

Hnilicka

Oyedokun

Zálabský

et al. 2022

Journal of Electrical Engineering

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Versatile charge collection materials in perovskite photovoltaics

Wang,

Zheng,

Wang

et al. 2024

Nano Energy

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A Method for Accurately Characterizing Single Overmoded Circular TM₀₁-TE₁₁ Mode Converter

et al. 2020

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In the case of characterizing waveguide mode converter, the widely applied back-to-back method can only extract two mode converters' joint S-parameters, the accuracy of the far-field radiation pattern method is limited. This paper experimentally demonstrates a method for accurately characterizing single circular TM 01-TE 11 mode converter, which consists of extracting the asymmetric two-port TM 01 and TE 11 mode generator test fixtures' S-parameters and de-embedding them from the "TM 01 mode generator+ TM 01-TE 11 mode Converter+TE 11 mode generator" cascade measurement results. The peak problem occurring in measuring overmoded circular waveguide devices with VNA is analyzed and settled with an offset waveguide based peak-shifting tactic plus the Loess smoothing method. Fairly good agreement between the simulated and finally extracted complex S-parameter matrix of a TM 01-TE 11 mode converter throughout the device's working frequency span validates the proposed method's merits over traditional methods. INDEX TERMS asymmetric fixture, de-embedding, mode generator, overmoded mode converter, offset waveguide, S-parameter, thru-reflect-line (TRL) calibration.

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Revisiting and improvement of thru‐reflect‐line calibration for accurate measurement of substrate integrated waveguide components

Cited by 4 publications

References 18 publications

Phase shifter based on the substrate integrated waveguide technology

Phase shifter based on the substrate integrated waveguide technology

Versatile charge collection materials in perovskite photovoltaics

A Method for Accurately Characterizing Single Overmoded Circular TM₀₁-TE₁₁ Mode Converter

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Revisiting and improvement of thru‐reflect‐line calibration for accurate measurement of substrate integrated waveguide components

Cited by 4 publications

References 18 publications

Phase shifter based on the substrate integrated waveguide technology

Phase shifter based on the substrate integrated waveguide technology

Versatile charge collection materials in perovskite photovoltaics

A Method for Accurately Characterizing Single Overmoded Circular TM01-TE11 Mode Converter

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Resources

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A Method for Accurately Characterizing Single Overmoded Circular TM₀₁-TE₁₁ Mode Converter