Dielectric Lens Designs for Antenna Beam Shaping in a Subdermal Tumor Treatment Device
- Resource Type
- Conference
- Authors
- Uluer, Ismail H.; Jaroszeski, Mark J.; Weller, Thomas M.
- Source
- 2021 IEEE MTT-S International Microwave Symposium (IMS) Microwave Symposium (IMS), 2021 IEEE MTT-S International. :370-373 Jun, 2021
- Subject
- Fields, Waves and Electromagnetics
Microwave antennas
Temperature measurement
Temperature dependence
Applicators
Dielectrics
Heat transfer
Surface treatment
lenses
near field
directional antennas
gene therapy
hyperthermia
microwave antennas
tumors
- Language
- ISSN
- 2576-7216
Planar diverging lenses attached to the front end of a dielectric rod antenna are proposed to control the heating area on the human body to assist the electroporation treatment of different tumor sizes. The desired 5–7 °C temperature elevation of the tumors is achieved in 3 minutes by applying 2.1-3.6 W input power depending on the size of tumor. In order to treat the tumors located 3–7 mm below the skin surface, the applicator is operated at 8 GHz. The experimental results obtained by measuring a pork muscle tissue show good agreement with electro-thermal simulations.