Dual‐purpose probe applicable to permittivity measurements and ablation of biological materials. Issue 3 (1st February 2018)

• Record Type: Journal Article
• Authors: Seo, Taeyoon; Oh, Seongwoog; Huh, Yeowool; Cho, Jeiwon; Kwon, Youngwoo
• Is Part Of: Electronics letters. Volume 54:Issue 3(2018)
• Page Start: 126
• Page End: 128
• Publication Date: 2018-02-01
• Subjects: muscle -- impedance matching -- permittivity -- biological effects of microwaves -- biological techniques; dual‐purpose probe -- permittivity measurements -- biological materials -- planar‐type open‐ended coaxial probe -- near‐field ablation -- power transfer -- impedance matching network -- pork muscle -- frequency 18 GHz; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2017.3827
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A dual‐purpose probe applicable both to permittivity measurements and ablation of biological materials has been developed. For these purposes, a planar‐type open‐ended coaxial probe was used as an applicator due to its capabilities of broadband permittivity measurements and near‐field ablation. In order to maintain highly efficient power transfer during ablation, an impedance matching network is designed. To verify the dual‐purpose probe, the complex permittivity of several biological materials was measured, and a block of pork muscle was ablated. As a result, permittivity measurements were successfully achieved nearly up to 20 GHz, and the surface temperature of pork muscle was raised up to 70°C with only 31 dBm of incident power at 18 GHz.