Localized heating of biological media using a 1-W microwave near-field probe

Anan Copty; Michael Golosovsky; Dan Davidov; Avraham Frenkel

doi:10.1109/TMTT.2004.831986

Localized heating of biological media using a 1-W microwave near-field probe

Anan Copty^*, Michael Golosovsky, Dan Davidov, Avraham Frenkel

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

A medium power microwave near-field probe operating at 9 GHz has been designed and tested. The probe radiates microwave energy through a very narrow slot microfabricated at the apex of the dielectric resonator. The radiation is very intensive at near-field distances from the slot and is capable of heating different materials. A temperature of ∼ 60°C -100°C is achieved in an irradiated spot of a size as small as 270 × 500 μm². This probe may be used for selective irradiation of biological tissues and tissue welding. We demonstrate the probe ability to produce irreversible changes in biological media with a relatively low power source of ∼1 W. This feature makes it safe for usage in biomedical settings and opens the way to development of an inexpensive portable handheld device.

Original language	English
Pages (from-to)	1957-1963
Number of pages	7
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	52
Issue number	8 II
DOIs	https://doi.org/10.1109/TMTT.2004.831986
State	Published - Aug 2004

Keywords

Microwave heating
Microwave microscopy
Near-field

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title = "Localized heating of biological media using a 1-W microwave near-field probe",

abstract = "A medium power microwave near-field probe operating at 9 GHz has been designed and tested. The probe radiates microwave energy through a very narrow slot microfabricated at the apex of the dielectric resonator. The radiation is very intensive at near-field distances from the slot and is capable of heating different materials. A temperature of ∼ 60°C -100°C is achieved in an irradiated spot of a size as small as 270 × 500 μm2. This probe may be used for selective irradiation of biological tissues and tissue welding. We demonstrate the probe ability to produce irreversible changes in biological media with a relatively low power source of ∼1 W. This feature makes it safe for usage in biomedical settings and opens the way to development of an inexpensive portable handheld device.",

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AU - Davidov, Dan

AU - Frenkel, Avraham

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N2 - A medium power microwave near-field probe operating at 9 GHz has been designed and tested. The probe radiates microwave energy through a very narrow slot microfabricated at the apex of the dielectric resonator. The radiation is very intensive at near-field distances from the slot and is capable of heating different materials. A temperature of ∼ 60°C -100°C is achieved in an irradiated spot of a size as small as 270 × 500 μm2. This probe may be used for selective irradiation of biological tissues and tissue welding. We demonstrate the probe ability to produce irreversible changes in biological media with a relatively low power source of ∼1 W. This feature makes it safe for usage in biomedical settings and opens the way to development of an inexpensive portable handheld device.

AB - A medium power microwave near-field probe operating at 9 GHz has been designed and tested. The probe radiates microwave energy through a very narrow slot microfabricated at the apex of the dielectric resonator. The radiation is very intensive at near-field distances from the slot and is capable of heating different materials. A temperature of ∼ 60°C -100°C is achieved in an irradiated spot of a size as small as 270 × 500 μm2. This probe may be used for selective irradiation of biological tissues and tissue welding. We demonstrate the probe ability to produce irreversible changes in biological media with a relatively low power source of ∼1 W. This feature makes it safe for usage in biomedical settings and opens the way to development of an inexpensive portable handheld device.

KW - Microwave heating

KW - Microwave microscopy

KW - Near-field

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Localized heating of biological media using a 1-W microwave near-field probe

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Keywords

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