Numerical analysis of bodyworn UHF antenna systems
Numerical analysis of bodyworn UHF antenna systems
- Neue Suche nach: Scanlon, W.G.
- Neue Suche nach: Evans, N.E.
- Neue Suche nach: Scanlon, W.G.
- Neue Suche nach: Evans, N.E.
Bodyworn antennas are found in a wide range of medical, military and personal communication applications, yet reliable communication from the surface of the human body still presents a range of engineering challenges. At UHF and microwave frequencies, bodyworn antennas can suffer from reduced efficiency due to electromagnetic absorption in tissue, radiation pattern fragmentation and variations in feed-point impedance. The significance and nature of these effects are system specific and depend on the operating frequency, propagation environment and physical constraints on the antenna itself. This paper describes how numerical electromagnetic modelling techniques such as FDTD (finite-difference time-domain) can be used in the design of bodyworn antennas. Examples are presented for 418 MHz, 916.5 MHz and 2.45 GHz, in the context of both biomedical signalling and wireless personal-area networking applications such as the BluetoothTM wireless technology.
Dokumentinformationen
Numerical analysis of bodyworn UHF antenna systems
Electronics and Communication Engineering Journal ; 13 , 2 ; 53-64
2001
12 Seiten, 15 Quellen
Aufsatz (Zeitschrift)
Englisch
Antennencharakteristik , biologische Wirkung , Zellgewebe , Scheinwiderstand , elektromagnetische Welle , Absorption , Zeitbereichanalyse mittels finiter Differenzen , PCN (Personal Communication Network) , numerisches Verfahren , Anwendung in der Medizin , Absorption elektromagnetischer Strahlung , Prüffrequenz
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