Technical Note: Design of a handheld dipole antenna for a compact thermoacoustic imaging system.
electric field attenuation compensation
handheld antenna
thermoacoustic imaging
Journal
Medical physics
ISSN: 2473-4209
Titre abrégé: Med Phys
Pays: United States
ID NLM: 0425746
Informations de publication
Date de publication:
Feb 2019
Feb 2019
Historique:
received:
23
07
2018
revised:
11
11
2018
accepted:
11
11
2018
pubmed:
18
11
2018
medline:
28
2
2019
entrez:
17
11
2018
Statut:
ppublish
Résumé
Conventional antenna used in thermoacoustic imaging (TAI) is often bulky, making it difficult to translate TAI from the bench to the clinic. In this paper, we proposed a handheld dipole antenna which will be a good candidate for the construction of a compact TAI system. Here, we propose a TAI system based on a handheld dipole antenna with an aperture of 6 cm and a weight of 230 g. Compensation of the electric field attenuation for such a system was also investigated. Compared to the conventional open-ended waveguide and pyramidal horn antenna used in TAI, our results reveal that the electric field attenuation induced distortion is effectively reduced by using the attenuation factor 1/r This study suggests that the handheld dipole antenna has the potential to be utilized for the construction of a compact TAI system, making TAI more suitable for preclinical and clinical applications.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
851-856Subventions
Organisme : National Natural Science Foundation of China
ID : 61701076
Informations de copyright
© 2018 American Association of Physicists in Medicine.