A phased array applicator based on open ridged-waveguide antenna for microwave hyperthermia
Journal article, 2021

Radiative hyperthermia is a clinically applied cancer treatment modality where antenna design is crucial to achieving therapeutic goals. Serving as the building block of a phased-array configuration, antennas are typically arranged in a cylindrical or elliptical array called applicator. This short communication proposes an elliptical phased array applicator based on a compact, UWB design from the category of double-ridged horn antennas customized for hyperthermia systems. The performance of the antenna, named open ridged-waveguide, has been experimentally assessed based on the quality metrics of the hyperthermic community. The proposed design achieves an ultra-wideband range of operation from 400 to 800 MHz with an aperture size of 3 by 4 cm. Moreover, thanks to the shielding provided by the metallic housing, the design proves good isolation better than -30 dB throughout the band. The power deposition capability of the proposed applicator followed by the thermal analysis is also investigated for a realistic head
and neck patient model. The results indicate very good quality metrics achieved in the treatment planning of the patient.

phased array applicators

specific absorption rate

beamforming

UWBantennas

Author

Morteza Ghaderi Aram

Chalmers, Electrical Engineering, Signal Processing and Biomedical Engineering, Biomedical Electromagnetics

Hadi Aliakbarian

K. N. Toosi University of Technology

Hana Dobsicek Trefna

Chalmers, Electrical Engineering, Signal Processing and Biomedical Engineering, Biomedical Electromagnetics

Microwave and Optical Technology Letters

0895-2477 (ISSN) 1098-2760 (eISSN)

Vol. In press

Subject Categories

Telecommunications

Biomedical Laboratory Science/Technology

Areas of Advance

Health Engineering

DOI

10.1002/mop.33039

Related datasets

DOI: 10.1002/mop.33039

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Latest update

9/16/2021