scholarly journals Design of a Wideband L-Shape Fed Microstrip Patch Antenna Backed by Conductor Plane for Medical Body Area Network

Electronics ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 21
Author(s):  
Chai-Eu Guan ◽  
Takafumi Fujimoto
Keyword(s):  
Human Body ◽  
Patch Antenna ◽  
Free Space ◽  
Center Frequency ◽  
Impedance Bandwidth ◽  
Coupling Scheme ◽  
Body Area Network ◽  
Area Network ◽  
Body Area ◽  
Feed Line

This paper describes a compact patch antenna intended for medical body area network. The antenna is fed using a proximity coupling scheme to support the antenna that radiates in the free space and on the human body at the 2.45 GHz ISM band. The conductor plane is placed 2 mm or 0.0163λ0 (λ0 is free space wavelength at 2.45 GHz) below the antenna to reduce backward radiation to the human body. Separation distance must be kept above 2 mm, otherwise, gain of the proposed antenna decreases when antenna is situated on the human body. The L-shape feed line is introduced to overcome impedance mismatch caused by the compact structure. The coupling gap between the proposed antenna and the length of the L-shape feed line are optimized to generate dual resonances mode for wide impedance bandwidth. Simulation results show that specific absorption rate (SAR) of the proposed antenna with L-shape feed line is lower than conventional patch antenna with direct microstrip feed line. The proposed antenna achieves impedance bandwidth of 120 MHz (4.89%) at the center frequency of 2.45 GHz. The maximum gain in the broadside direction is 6.2 dBi in simulation and 5.09 dBi in measurement for antenna in the free space. Wide impedance bandwidth and radiation patterns insensitive to the presence of human body are achieved, which meets the requirement of IoT-based wearable sensor.

A novel low-power compact WBS human body channel receiver for wearable vital signal sensing application in wireless body-area network

2017 ◽  
Vol 23 (10) ◽  
pp. 4459-4473 ◽  
Author(s):  
Ke Lin ◽  
Bo Wang ◽  
Xing Zhang ◽  
Xinan Wang ◽  
Tingbin Ouyang ◽  
...  
Keyword(s):  
Low Power ◽  
Human Body ◽  
Wireless Body Area Network ◽  
Body Area Network ◽  
Area Network ◽  
Body Area ◽  
Sensing Application

scholarly journals Design of a Dual-Band On-Body Antenna for a Wireless Body Area Network Repeater System

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Kyeol Kwon ◽  
Jaegeun Ha ◽  
Soonyong Lee ◽  
Jaehoon Choi
Keyword(s):  
Human Body ◽  
Return Loss ◽  
Wireless Body Area Network ◽  
Dual Band ◽  
Body Area Network ◽  
Area Network ◽  
Resonance Property ◽  
Body Area ◽  
Dual Band Antenna ◽  
Mics Band

A dual-band on-body antenna for a wireless body area network repeater system is proposed. The designed dual-band antenna has the maximum radiation directed toward the inside of the human body in the medical implantable communication service (MICS) band in order to collect vital information from the human body and directed toward the outside in the industrial, scientific, and medical (ISM) band to transmit that information to a monitoring system. In addition, the return loss property of the antenna is insensitive to human body effects by utilizing the epsilon negative zeroth-order resonance property.

scholarly journals E-PAP: Enhanced Priority Aware Protocol for Reliable Communication in Wireless Body Area Network

2020 ◽  
Vol 9 (6) ◽  
pp. 340-343
Keyword(s):  
Energy Consumption ◽  
Human Body ◽  
Data Transmission ◽  
Body Movement ◽  
Wireless Body Area Network ◽  
The Body ◽  
Physiological Data ◽  
Body Area Network ◽  
Area Network ◽  
Body Area

Wireless Body Area Network (WBAN) is a collection of miniaturized sensing nodes and coordinator nodes. These sensing nodes are placed in, on and around the body for uninterrupted monitoring of physiological data for medical applications. The main application carrier of WBAN is the human body and due to human body movement and physiological changes, the WBAN traffic fluctuates greatly. This network traffic fluctuation requires good network adaptability. In addition to traffic fluctuations, energy consumption is another key problem with WBANs as sensing nodes are very small in size. This paper design a reliable protocol by extending the MAC protocol for reducing energy consumption, PAP algorithm to decide data transmission rate and JOAR algorithm to select the optimize path for the data transmission. The performance of the algorithm outperforms other state of art algorithms to shows its significance.

scholarly journals Broadband Modified Proximity Coupled Patch Antenna with Cavity-Backed Configuration

2021 ◽  
Vol 21 (1) ◽  
pp. 8-14
Author(s):  
Deok Kyu Kong ◽  
Jaesik Kim ◽  
Daewoong Woo ◽  
Young Joong Yoon
Keyword(s):  
Patch Antenna ◽  
Center Frequency ◽  
Impedance Bandwidth ◽  
Broadband Antenna ◽  
Feed Line ◽  
Additional Resonance ◽  
Cavity Structure ◽  
Measurement Results ◽  
Microstrip Feed Line ◽  
Microstrip Feed

A modified proximity-coupled microstrip patch antenna with broad impedance bandwidth is proposed by incorporating proximity-coupled patch antenna into the rectangular open-ended microstrip feed line on a cavity structure. First we design a proximity-coupled microstrip antenna to have a wide bandwidth in the lower band centered at 7 GHz using a cavity-backed ground. To broaden the bandwidth of the antenna to the upper band, we then apply a rectangular open-ended microstrip feed line, adjusting the relative position to the cavity to generate an additional resonance close to 10 GHz. The combination of lower and upper band design results in a broadband antenna with dimensions of 30 mm × 30 mm × 9 mm (0.9λ<sub>0</sub> × 0.9λ<sub>0</sub> × 0.27λ<sub>0</sub>) is designed where λ<sub>0</sub> corresponds to the free space wavelength at a center frequency of 9 GHz. The measurement results verify the broad impedance bandwidth (VSWR ≤ 2) of the antenna at 77% (5.6–12.6 GHz) while the broadside gain is maintained between 6 dBi and 8 dBi within the operational broad bandwidth.

scholarly journals Design and Simulation of Lightweight Identity Authentication Mechanism in Body Area Network

2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Jianglong Yang ◽  
Wanlin Yang ◽  
Huwei Liu ◽  
Li Zhou
Keyword(s):  
Human Body ◽  
Resource Constraints ◽  
Identity Authentication ◽  
Security Requirements ◽  
Physiological Data ◽  
Body Area Network ◽  
Area Network ◽  
Personal Privacy ◽  
Body Area ◽  
Authentication Mechanism

Wearable medical devices rely on the human body to form a small LAN around the human body, called body area network (BAN). Users can use these devices to monitor the changes of various body indicators in real time. The physiological data involved in this process belongs to personal privacy. Therefore, the security requirements of BAN are relatively high, and its current research focus is on authentication mechanisms. To meet the requirements of security and resource consumption of BAN, this paper proposes a lightweight identity authentication mechanism that meets the characteristics of BAN resource constraints. Based on the characteristics of BAN, a simple and mature star topology structure is applied to establish the network model of BAN. For the human body in normal situations and emergencies, the corresponding authentication mechanism and encryption and decryption method of physiological data are designed by using the physical unclonable function (PUF) and cloud database, physiological data, and cross-correlation algorithm. Furthermore, the formal and informal security analysis of the designed authentication mechanism proves that the authentication mechanism designed in this paper has certain security, and the lightweight authentication mechanism is simulated and evaluated. The experimental results show that compared with the benchmarking mechanism, the authentication mechanism designed in this paper solves more security problems and has certain advantages in terms of calculation cost, communication cost, and energy cost.

scholarly journals A SURVEY ON UWB WEARABLE ANTENNA FOR BODY AREA NETWORK APPLICATION

2020 ◽  
Vol 5 (2) ◽  
pp. 274-280
Author(s):  
Rovin Tiwari ◽  
Raghavendra Sharma ◽  
Rahul Dubey
Keyword(s):  
Band Gap ◽  
Human Body ◽  
Body Area Network ◽  
Area Network ◽  
Research Issue ◽  
Body Area ◽  
Electromagnetic Band Gap ◽  
Wearable Antenna ◽  
Receiving Antenna ◽  
Network Application

A body wearable antenna (BWA) is a hotly research issue for the examination. In this paper different kind of receiving antennas are displayed which are as of now accessible in writing. A BWA is a material receiving antenna, which is adaptable and comfort. At some point it isn't important that space accessible for mounting the receiving antenna is level, so radio antenna ought not to change its qualities amid twisting conditions. Save specialists for the most part work in such a domain which is disjoined by multipath, which cause the blurring of got flag. So to keep away from such kind of issue a multi energized reception apparatus may require. Besides when receiving antenna is put over the human body, because of bidirectional properties of radio antenna in reverse radiation may hurt the wearer's body. So to minimize such radiations EBG (Electromagnetic band gap) structures are utilized.

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