Self-calibration algorithms for microwave hyperthermia antenna arrays
Paper in proceedings, 2018

In deep microwave hyperthermia (MW-HT), antenna arrays are used to generate an interference pattern which focuses energy in the tumor location. These arrays are subject to a number of disturbances which must be compensated for through calibration. This paper proposes and analyzes a pair of self-calibration algorithms, i.e. calibration procedures which rely only on S-matrix measurements of the N-port array applicator device, avoiding the need for external references and making real-time in-treatment calibration possible. Two algorithms are analyzed by means of simulations and experiments in terms of reliability and sensitivity to different kinds of disturbances. The results show that one of two implemented algorithms can converge to the same calibration values obtained when using an external calibration reference (monopole antenna).

array

hyperthermia

self-calibration

microwave

Author

Massimiliano Zanoli

Chalmers, Electrical Engineering, Signalbehandling och medicinsk teknik, Biomedical Electromagnetics

Mikael Persson

Chalmers, Electrical Engineering, Signalbehandling och medicinsk teknik

Hana Dobsicek Trefna

Chalmers, Electrical Engineering, Signalbehandling och medicinsk teknik, Biomedical Electromagnetics

Proceedings of the European Conference on Antennas and Propagation

2164-3342 (ISSN)

Vol. 2018 CP741

12th European Conference on Antennas and Propagation (EuCAP 2018)
London, United Kingdom,

Subject Categories

Medical Engineering

Signal Processing

Cancer and Oncology

Areas of Advance

Life Science Engineering (2010-2018)

DOI

10.1049/cp.2018.0933

More information

Latest update

1/21/2019