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Figures of a dual-polarized frequency selective rasorber withwide transmission band

Citation

Chang, Yumei; Jiao, Wenhan; Wang, Lin; Wu, Wenjie (2021), Figures of a dual-polarized frequency selective rasorber withwide transmission band, Dryad, Dataset, https://doi.org/10.5061/dryad.12jm63xvc

Abstract

We proposed a novel and simple dual-polarized frequency-selective rasorber (FSR) which has a wide absorption band including a wide transmission band. The structure consists of a lossy frequency-selective surface (FSS) constructed with metal rings connected by center loaded strips as the top layer, and a broad band transmission FSS at the bottom, while the two layers are separated by air. To clearly understand how it works,  detailed equivalent circuit was derived to accurately predict the frequency responses of the structure. To validate our proposal, a prototype was fabricated and measured.

In this data file, simulation results obtained by commercial software Ansys HFSS and measurement results are listed. The measured results are in good agreements with simulations under normal incidence, which indicates a broad absorption bandwidth of 80% that from 3.40 GHz to 8.16 GHz; in the meantime, a wide transmission band with an insertion loss of less than -1.25 dB is ranging from 9.03 GHz to 12.01 GHz. It should be pointed out that, the reflection from the whole structure in the operation band can be kept below -10 dB from 4.15 GHz to 11.87 GHz.

Methods

The simulation results are all obtained through commercial software Ansys HFSS. The measurement was carried out in a microwave anechoic chamber.

Usage Notes

raw_data

Contains raw sequence data

ECM_HFSS_results_lower_part_prop_FSR

Comparisons of the S-parameters for the FSS between full wave analysis and equivalent circuit analysis.

File: ECM_HFSS_results_lower_part_prop_FSR.xlsx

Influence_h2_HFSS_results

Thickness of dielectric substrates h2

’s influence on the performance

File: Influence_h2_HFSS_resultsxlsx

Influence_r2_HFSS_results

Thickness of dielectric substrates r2

’s influence on the performance

File: Influence_r2_HFSS_resultsxlsx

Influence_r3_HFSS_results

Thickness of dielectric substrates r3

’s influence on the performance

File: Influence_r3_HFSS_results.xlsx

Influence_ Rgrid_ECM_results

Influence of the resistance on the grid structure.

File: Influence_ Rgrid_ECM_results, xlsx

ECM_HFSS_resluts_Metal_FSS

Comparison between full-wave simulation and equivalent circuit analysis data for metal grid FSS

File: ECM_HFSS_resluts_Metal_FSS.xlsx

ECM_HFSS_resluts_Metal_FSS_with_R

Comparison between full-wave simulation and equivalent circuit analysis data for metal grid FSS with resistors

File: ECM_HFSS_resluts_Metal_FSS_with_R.xlsx

Influence_R1_HFSS_losy_layer

Simulated reflection/transmission coefficients of lossy layer with different ring radius R1

File: Influence_R1_HFSS_losy_layer.xlsx

ECM_HFSS_results_whole_structure

Comparison between full-wave simulation and equivalent circuit analysis for the whole structure

File: ECM_HFSS_results_whole_structure. xlsx

Influence_R1_HFSS_whole_structure

Simulated reflection/transmission coefficients of FSR with different ring radius

File: Influence_R1_HFSS_whole_structure. xlsx

S11_Absorption_HSS-TE_TM_whole_structure

S parameter and absorption comparisons of the structure between TE and TM polarization.

File: S11_Absorption_HSS-TE_TM_whole_structure. xlsx

S_Measurement_HFSS_sample

Measured and simulated reflection/transmission coefficients of the FSR

File: S_Measurement_HFSS_sample.xlsx

Absorption_Measurement_HFSS_sample

Measured and simulated absorption coefficients of the FSR

File: Absorption _Measurement_HFSS_sample.xlsx