Compact Multi-Band Bandpass Filters Using Substrate Integrated Waveguide and Fractal Resonators

Paul, Amartya; Sarkar, Pankaj

doi:10.1007/978-981-99-1509-5_31

Algorithms for Intelligent Systems

2023

DOI: 10.1007/978-981-99-1509-5_31

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Compact Multi-Band Bandpass Filters Using Substrate Integrated Waveguide and Fractal Resonators

Amartya Paul,

Pankaj Sarkar

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2024

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Cited by 1 publication

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Microwave Imaging and Non-Destructive Testing of Bituminous Mix Binder-Aggregate Behavior Using Log-Periodic Feedline-Based Microstrip Filter

Paul,

Kumari,

Snaitang

et al. 2024

NDT

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This research investigates the characterization of bituminous mixes utilizing microwave imaging and non-destructive testing. We studied the electromagnetic characteristics of various samples, including bituminous concrete (BC) and open-grade friction course (OGFC) samples. A novel ring filter with log-periodic feedlines, designed on the RT/Duroid 5880 substrate, was utilized within the frequency range of 0.3–0.7 GHz. The samples were assessed using average attenuation and group delay measures, which detailed clear electromagnetic characteristics. The samples’ flow value and specific gravity were correlated to these parameters. The calculated flow value and specific gravity (using the filter) and measured flow value and specific gravity (using the conventional method) coincided well. The filter could predict the parameters of the samples with a high accuracy of roughly 99.8% for the flow value and specific gravity, whereas the OGFC sample displayed an accuracy of 99.7%, correspondingly, as shown in high R2 values. This demonstrates that the filter can precisely measure the parameters required for studying the interaction between the binder and aggregate in bituminous mixes without being invasive. The findings indicate a significant disparity between OGFC and BC samples in their responses to electromagnetic fields and their characteristics. This demonstrates the high sensitivity and significant value of microwave techniques in the study of bitumen and the construction of roadways.

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Microwave Imaging and Non-Destructive Testing of Bituminous Mix Binder-Aggregate Behavior Using Log-Periodic Feedline-Based Microstrip Filter

Paul,

Kumari,

Snaitang

et al. 2024

NDT

View full text Add to dashboard Cite

show abstract

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Compact Multi-Band Bandpass Filters Using Substrate Integrated Waveguide and Fractal Resonators

Cited by 1 publication

References 12 publications

Microwave Imaging and Non-Destructive Testing of Bituminous Mix Binder-Aggregate Behavior Using Log-Periodic Feedline-Based Microstrip Filter

Microwave Imaging and Non-Destructive Testing of Bituminous Mix Binder-Aggregate Behavior Using Log-Periodic Feedline-Based Microstrip Filter

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