zlem Ipek1, Alexander J.R. Raaijmakers1,
Dennis W.J. Klomp1, Jan J. Lagendijk1, Cornelis A.T van
den Berg1
1Radiotherapy and Radiology, UMC Utrecht,
Utrecht, Netherlands
A
radiative surface antenna is compared to a stripline element in terms of
measured and simulated B1+ field and simulated SAR. The radiative antenna is
suitable for high field imaging of deeply situated organs and designed to
effectively couple an electromagnetic wave into the body. It consists of a
dielectric substrate with two copper strips fed by a coaxial cable. Due to
the radiative principle, the radiative antenna shows two times higher B1+ field
at depth of the phantom as well as six times lower maximum SAR at the surface
of the phantom in comparison to a conventional stripline element.