Wideband-Narrowband Switchable Tapered Slot Antenna for Breast Cancer Diagnosis and Treatment

In this paper, a wideband-narrowband switchable tapered slot antenna (TSA) with a compact meander line resonator for an integrated microwave imaging and hyperthermia system was proposed. A compact meander line resonator, which exhibited band-pass characteristics and provided narrowband characteristi...

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Bibliographic Details
Published in:Applied sciences 2021-04, Vol.11 (8), p.3606
Main Authors: Lim, Seonho, Yoon, Young Joong
Format: Article
Language:English
Subjects:
Antennas
Breast cancer
Cancer therapies
Chemotherapy
Computer simulation
Design
Dielectric properties
Diodes
Fever
frequency reconfigurable antenna
Hyperthermia
Medical imaging
Microwave imaging
Narrowband
PIN diodes
Radiation
Resonators
Slot antennas
tapered slot antenna
tumor treatment
Ultrawideband
wideband to narrowband switching
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Summary:In this paper, a wideband-narrowband switchable tapered slot antenna (TSA) with a compact meander line resonator for an integrated microwave imaging and hyperthermia system was proposed. A compact meander line resonator, which exhibited band-pass characteristics and provided narrowband characteristics by using one PIN diode, was fabricated beneath the tapered slot of the wideband TSA to minimize the degradation of the wideband characteristics. Moreover, the electromagnetic energy was transferred to the meander line resonator with a coupling effect to ensure effective frequency switching. By adapting a PIN diode on the meander line resonator, frequency switching could be achieved. In this way, the proposed antenna could operate in a real-time frequency switching mode between the ultra-wideband (UWB; 3.1~10 GHz), which is used for microwave imaging, and the 2.45 GHz band (industrial, scientific, and medical, ISM band), which is used for microwave hyperthermia. Frequency and time-domain results proved the applicability of the proposed antenna to an integrated breast cancer detection and treatment system.
ISSN:2076-3417
2076-3417
DOI:10.3390/app11083606