Investigation of shadowing effects in ultra wide band implant Body Area Networks

2014 ◽  
Author(s):  
Memduh Suveren ◽  
Muzaffer Kanaan ◽  
Canset KocerMekatronik Muhendisligi Bolumu
Keyword(s):  
Wide Band ◽  
Body Area Networks ◽  
Ultra Wide Band ◽  
Body Area ◽  
Shadowing Effects

Body Area Networks

2011 ◽  
pp. 61-91 ◽  
Author(s):  
Leonardo Betancur Agudelo ◽  
Andres Navarro Cadavid
Keyword(s):  
Wide Band ◽  
Body Area Networks ◽  
Ultra Wide Band ◽  
Future Research ◽  
Area Network ◽  
Body Area ◽  
Daily Lives ◽  
Technical Problems ◽  
Wireless Protocols ◽  
Network Channel

Nowadays, wireless Body Area Networks (wBAN) have gained more relevance, in particular in the areas of health care, emergencies, ranging, location, domotics and entertainment applications. Regulations and several wireless protocols and standards have appeared in recent years. Some of them, like Bluetooth, ZigBee, Ultra Wide Band (UWB), ECMA368, WiFi, GPRS and mobile applications offer different kinds of solutions for personal area communications. In this chapter, body area network channel modelling will be described; also, a brief description of the applications and state-of-the-art of regulation and standardization processes pertaining to these kinds of networks will be presented. For each topic, the chapter shows not only the main technical characteristics, but also the technical problems and challenges in recent and future research. Finally, the chapter provides an analysis of Body Area Networks, opinions about the future and possible scenarios in the short- and medium-term for the development of standards and applications and their impacts on our daily lives.

scholarly journals An Off-Body Narrowband and Ultra-Wide Band Channel Model for Body Area Networks in a Ferryboat Environment

2018 ◽  
Vol 8 (6) ◽  
pp. 988 ◽  
Author(s):  
Krzysztof Cwalina ◽  
Slawomir Ambroziak ◽  
Piotr Rajchowski
Keyword(s):  
Channel Model ◽  
Wide Band ◽  
Body Area Networks ◽  
Ultra Wide Band ◽  
Body Area

scholarly journals Compact Hexagonal Ultra Wide Band Fractal Antenna for Wireless Body Area Networks

2020 ◽  
Vol 9 (4) ◽  
pp. 3024-3028
Keyword(s):  
Surface Waves ◽  
Band Gap ◽  
Radiation Pattern ◽  
Wide Band ◽  
Ultra Wide Band ◽  
Area Network ◽  
Fractal Antenna ◽  
Body Area ◽  
Electromagnetic Band Gap ◽  
Band Gap Structure

A Hexagonal Microstrip Ultra Wide Band Fractal Antenna for wireless body area network applications is proposed. The Hexagonal antenna is powered through co-planar waveguide (CPW) feed structure. The proposed antenna uses a hexagonal fractal structures to achieve its Ultra Wide Band characterization. The addition of fractal elements introduces multi-resonance at different frequencies and covers a large bandwidth of 3.8GHz–10.1GHz respectively. This antenna creates a Fractal geometry inside the patch with similar in shape but difference in sizes. Electromagnetic Band Gap structures are introduced in order to improve gain and directivity of the antenna. Electromagnetic Bandgap Structure (EBG) is mainly focused on overcoming the limitation of Microstrip Patch antenna parameters such as low gain, excitation of surface waves. Electromagnetic Band Gap structures are defined as artificial periodic structures that exhibit unique electromagnetic features, such as frequency band gap for surface waves and in-phase reflection coefficient for incident plane waves, which makes them desirable for low-profile antenna designs. The Electromagnetic Band Gap structure is placed behind the antenna to suppress the propagation of surface wave and to improve gain, directivity and to reduce the side lobes of the radiation pattern. The effect of surface currents in the ground plane reduces the antennas operating bandwidth which is reduced by introducing defective ground structure. The size of the antenna is 25×25×1.588 . The proposed antenna has an average gain of 3.8dB. The radiation pattern obtained is unidirectional.

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