Design of a triple band planar bow-tie antenna for wearable applications

Abstract

A novel triple band bow-tie wearable antenna is designed to operate at 450 MHz, 800 MHz and 1.4 GHz. Electro-Textile materials were used as the substrate in order to provide higher degree of flexibility. A study on most commonly used textile substrates are carried out and it is found that jeans cotton provides maximum S 11 . Specific absorption rate (SAR) of the designed antenna is calculated using the voxel model. The calculated SAR value agrees with the international standards.

A printed volcano smoke antenna for personal communication systems

“…Many researchers have studied and performed UWB antennas [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. In [1], the coplanar waveguide-fed proposed antenna employs a method to minimize the monopole antenna by loading inverted L-strip to lower the height of the antenna.…”

“…A UWB circular monopole antenna with compact split ring resonator (SRR) yields the frequency notch [4]. Some UWB antennas have been proposed [5][6][7][8][9][10][11][12][13][14].…”

“…Then, to solve the wideband limitations, one of the best options have been to use circular radiators. More complex structures have been suggested for personal communication system purposes even including various elements such as loads, inductances, short pins among other, but they can be designed to cover a limited number of services with an unavoidable impact on the antenna size finding an average of about 10 × 5 cm 2 . The latter results in an expensive fabrication process as some of them uses artificial materials , .…”

A Novel Digital Phantom Using an Optical Noncontact Measurement System

“…The performance of the antenna array was compared with that in free space. In [5] and [6], the voxel model was imported into the simulation domains to obtain SAR values for different antennas. The model was obtained from MRI scanning.…”