Low-profile Slot Antenna integrated with a thin polymer non-metallic battery

Abstract

Abstract-In this study, a low-profile slot antenna was designed with the purpose of having the ability to be integrated into the structure of a layered non-metallic polymer battery. Using a set of previous published parameters for the slot antenna, the structure was modified in the CST Microwave Studio package in order to suit the needs of a battery substrate. A second slotted ground plane was attached beneath the antenna. The composite substrate and ground planes replicates the layered structure of a plastic planar battery, with the intention of reducing the size of the slots on the bottom plane which also acts as a battery terminal. The effect of the slot size and tan value of the substrate on the radiation patterns was also investigated.

Integrated antenna-battery for low-profile short range communications

“…Here, we observed a reduction in gain to 0.3dB and a reduction in efficiency to -4.8dB. Once again, comparing this to [5] where an efficiency of -7.3dB at 2.6GHz was simulated for a loss tangent of 0.9, a noticeable improvement was achieved. Table I shows a summary of the results obtained from the initial structure of Fig.…”

“…The -10dB fractional bandwidth was calculated to be about 28% and the antenna simulated total efficiency was -2.3dB with a gain of 2.8dB. This can be compared to that of [5] where efficiencies of about -2.2dB and gains of about 3.3dB at 2.6GHz were obtained.…”

“…The slot dipole antenna consisted of two symmetric slots cut into an upper conducting plane. The antenna structure is derived from that of [5], and is based on Nithisopa's CPW-fed slot dipole [6], and redesigned for the 2.45GHz band. The substrate was of a thickness of 0.3mm, with a relative permittivity ( r) of 3.…”

Conducting Polymers as Elements of Miniature Biocompatible Sensor

“…Simultaneously, appearing green materials are contemplated to achieve a more aspiring purpose, designated by the integration of biocompatible, biodegradable and cost-reasonable electronics, such as the monitoring or the diagnosis of humans with environmentally benign technologies. Examples of the most common conductive polymers are shown in Tables 1 and 2 [11][12][13][14] and Figure 1. Among the different conducting polymers, poly(3,4-ethylenedioxythiophene) (PEDOT) is one of the most encouraging materials for bioelectronics due to its relatively high conductivity, stability and more importantly its organic nature and good compatibility with bioorganic molecules such as enzymes compared to other CPs.…”

Development of a new class of on-skin radio-sensors boosted by thin polymer-based batteries

“…Batteries thus should contain no metallic components, avoiding the standard use of a metallic hermetic enclosure. Therefore, the materials that replace the metallic elements should be sufficiently conductive to preserve the antenna performance [2]. Advances in material science and the novel digital fabrication technologies offer unprecedented options to realize low-profile batteries that are safer, eco-friendly, and can be lighter than a gram as well as thinner than a millimeter.…”