Meander bowtie Antenna for Wearable Application

Abstract

This paper proposes a flexible compact bowtie antenna for medical application that operates at 2.45 GHz. The proposed antennas are miniaturized using meander technique. Both substrates and conducting material of the antenna are made of flexible material semi-transparent film as the substrate and shieldit fabric as the conducting material which suitable for wearable and on body application. The results show that the total length of the antenna is significantly reduced by up to 38%. However, the gain of the antenna is slightly decreased when the size of the antenna become smaller. The results of this research could provide guidance and has significant implication for future development of wearable electronics especially in medical monitoring application.

Low specific absorption rate and gain‐enhanced meandered bowtie antenna utilizing flexible dipole‐like artificial magnetic conductor for medical application at 2.4 GHz

“…All modeling and simulation of antenna and AMC structures are performed using CST Microwave Studio. The configuration of the flexible meandered bowtie antenna is shown in Figure 1 and the meandering technique for miniaturization was discussed in detail in Reference 16. The antenna is designed and optimized to operate at 2.4 GHz with the operating bandwidth (BW) ranging from 2.31 to 2.49 GHz.…”

“…Furthermore, the amount of power absorption and current distribution in the body model with and without the AMC structure is also explored. The proposed flexible meandered bowtie antenna with flexible double‐dipole AMC is compared to the literature as delineated in Table 1 12‐16,19 . These published works proposed a flexible antenna integrated with flexible AMC/EBG surface for medical application at 2.4 GHz made of different types of flexible substrate material.…”

“…Thus, artificial magnetic conductor (AMC) has been widely studied as a ground plane owing to its high impedance surface, which could reflect most of the incident power. Such feature allows it to be placed beneath the antenna (acts as a ground plane) that abated the radiated power into the body and the backward radiation 12‐16 …”

A wearable antenna based on fabric materials with circular polarization for Body-centric wireless communications

“…The wearable antennas, which are part of our daily clothes, are utilized for communication purposes such as health monitoring, sports, tracking, military, public safety, firefighters and mobile computing. Besides that, a wearable antenna considers one of the most vital parts of wearable electronic devices [1][2][3][4][5][6][7][8][9].…”

Compact wideband tapered‐fed printed bow‐tie antenna with rectangular edge extension

“…2 In the literature, there are many studies about PBAs for very wide range of specific applications such as ground penetrating radar, synthetic aperture radar (SAR) imaging, cancer detection, medical sensors, radio astronomy, wireless communication, direction finding, 5G communications, antenna measurements, UHF and digital video broadcasting (DVB) reception, GPS, RFID, millimeter wave, and pulse-based systems. [3][4][5][6][7][8][9] Singlesided and double-sided PBAs can be counted as two main types of them. Employment of coplanar waveguide (CPW) feeding is the most practical way to realize single-sided PBAs, 9,10 when parallel transmission and microstrip lines are frequently used in double-sided PBAs.…”