When wireless devises for MICS(Medical Implant Communication Service) or ISM(Industrial Scientific and Medical) bands are designed, it is necessary to verify the performance by using a human body flat phantom. However, most of studies on the phantom are limited to the biological effects of mobile-phone EMF. In this paper, semi-solid phantoms having the electric properties suggested by FCC at MICS and ISM bands are fabricated. The manufactured phantoms satisfy the electric properties(  56.7 and  0.94 at MICS band,   52.7 and  1.95 at ISM band) at each band.All the composing materials for phantoms are commercially available in domestic market. Two methods using both polyethylene powder and TX-151 and glycerin at each band are proposed for diverse purpose. The electrical properties of the fabricated phantoms are measured by a dielectric probe kit and network analyzer after the lapse of one day (24 hours).

An implanted compact antenna for an artificial cardiac pacemaker is proposed. The dimension of the pacemaker system, including the antenna element, is 30 mm × 35 mm × 7 mm. When the antenna is embedded in a semi-solid flat phantom with equivalent electrical properties as the human body, S 11 value is −19.2 dB at 403.5 MHz and the −10 dB impedance bandwidth of the antenna is 10 MHz (399∼409 MHz). The proposed antenna in the phantom has a peak gain of −24.61 dBi at 403.5 MHz. The measured specific absorption ratio (SAR) value of the proposed antenna is 0.0079 W/Kg (1 g tissue). Moreover, to estimate the communication performance of the proposed antenna operated in the real environment, a link budget analysis is performed.

In this article, a capsule antenna used in an ingestible medical device is proposed. To achieve miniaturization and a wide bandwidth, an inverted‐F antenna with a meandered strip line was used. The antenna performance in a human voxel model is analyzed through simulation, and the performance of the fabricated antenna is verified by comparing the measured data with that of the simulation, when the antenna is placed in a human‐equivalent liquid phantom. To investigate the performance of the proposed antenna in an indoor environment, a typical sickroom model is set‐up, and the propagation characteristics between the proposed antenna and the base station are analyzed at 1.4 GHz. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1761–1765, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26869

In this paper, an antenna used in an ingestible capsule endoscope system is proposed. To achieve miniaturization and a wide bandwidth, an inverted-F antenna with a meandered strip line was used. The antenna performance in a human voxel model is analyzed through simulation. In order to investigate the performance of the proposed antenna in an indoor environment, a typical sickroom model is setup, and the propagation characteristics between the proposed antenna and the base station are analyzed at 1.4 GHz. The per~ormance of the fabricated antenna is verified by companng the measured data with that of the simulation when the antenna is placed in a human-equivalent liquid phantom.