ArticleScientific reports2026
Single-layer quad-band FSR with enhanced angular stability for S- and C-band applications.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A single-layer, polarization-insensitive frequency-selective rasorber (FSR) with quad-band absorption performance is proposed. The presented FSR is developed by integrating a quad-band resonant absorber and a single bandpass frequency-selective surface (FSS) on opposite sides of an FR4 substrate. In the absorption bands, the top layer effectively absorbs electromagnetic waves, while the backside FSS functions as a reflector. In the transmission band, the top layer becomes nearly transparent, allowing efficient wave passage through the backside FSS. The combination of the two layers results in effective multi-functional performance. The top layer achieves over 90% absorption at 2.14, 2.88, 6.02, and 7.32 GHz. The backside FSS generates a transmission band at 4.54 GHz with low insertion loss. The design exhibits enhanced angular stability up to 50° for both TE and TM polarizations, with polarization insensitivity ensured through four-fold rotational symmetry. The physical mechanism is analyzed using an equivalent circuit model and effective-medium analysis. A 15 × 15 prototype has been fabricated and measured, showing excellent agreement with simulations. This resistor-free single-layer FSR is suitable for radar cross-section (RCS) reduction, electromagnetic interference (EMI) mitigation, and multi-functional radome applications in S- and C-bands.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.