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http://hdl.handle.net/10553/106609
Title: | Wideband Epidermal Antenna for Medical Radiometry | Authors: | León, Germán Herrán, Luis F. Mateos, Ignacio Villa, Enrique Ruiz Alzola, Juan Bautista |
UNESCO Clasification: | 3314 Tecnología médica | Keywords: | Epidermal antenna Flexible wideband antenna Microwave medical applications |
Issue Date: | 2020 | Journal: | Sensors (Switzerland) | Abstract: | Microwave thermometry is a noninvasive and passive technique for measuring internal body temperature. Wearable compact antennas, matched to the specific body area, are required for this method. We present a new epidermal wideband antenna for medical radiometry. The double asymmetric H-shaped slot antenna was designed to be matched to di erent parts of the body without fat layers. The slots are fed by a short-circuited microstrip line in order to decrease size and back radiation, thus reducing potential interferences. In this way, contribution to radiometric temperature due to back radiation is lower than 4%, versus the 20% of the volume under investigation, over the whole operating frequency band. The designed prototype was manufactured on a flexible substrate. The antenna is a very small size, to make it comfortable and suitable for being used by patients with di erent body mass indexes. The double H-shaped antenna shows good wideband matching results from around 1.5 GHz up to 5 GHz, in di erent body locations such as the neck, foot instep and foot sole. | URI: | http://hdl.handle.net/10553/106609 | ISSN: | 1424-8220 | DOI: | 10.3390/s20071987 | Source: | Sensors (Switzerland) [ISSN 1424-8220], n. 20 |
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