ArticleNMR in biomedicine2025
The Mode of Operation of High-Impedance Coils and Shielded Coaxial Cable Coils: A Comparative Study.
Article in NMR in biomedicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Optical Detuning Strategies for Shielded Loop Resonators.Magnetic resonance in medicine · 2026Article
- The Mode of Operation of High-Impedance Coils and Shielded Coaxial Cable Coils: A Comparative Study.NMR in biomedicine · 2025Article
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Authors and funding
5 authors.
Funding
Abstract
High-impedance coils (HICs) and shielded coaxial cable coils (SCCs) are of the same physical structure but with different matching networks and different input impedances (which depend on the mode of operation). This article explores the working and decoupling mechanisms of the HICs and the SCCs and establishes a design principle for highly decoupled elements. Decoupling properties, input impedances, and modes of operation of HICs and SCCs were analyzed and compared through a frequency range from 50 to 500 MHz. The coils were modeled in CST Microwave Studio, and full-wave electromagnetic simulations were performed to analyze coil parameters. Input impedance and S-parameters were examined for individual and two elements with various overlaps. The current distribution is computed along the outer surface of the conductor of the coils. It was shown that HICs have uniform current distribution, although SCCs have a combination of sinusoidal and constant current. Input impedances of SCCs designed for operation at the second resonant mode did not change, while two SCCs overlapped for varying amounts. Contrarily, HICs showed characteristic impedance splitting when various amounts of overlap were examined.
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