Affordable Access

A General Formulation of Applied Potential Tomography

American Geophysical Union
Publication Date
  • Communication


Elektrotechnik & Informationstechnik (2012) 129/6: 383–386. DOI 10.1007/s00502-012-0051-y ORIGINALARBEITEN Antennas for next generation mobile communications J.B. Andersen Life Fellow IEEE, G.F. Pedersen In future mobile communications many antennas will coexist on the device. This creates a number of problems related to bandwidth, efficiency, and correlation. Remedies are discussed in the paper, and attention is called to the promising area of adaptive matching, which also can solve problems related to the user. Keywords: antennas; mobile; millimeter Antennen für die nächste Mobilfunk-Generation. In der künftigen Mobilkommunikation werden mehrere Antennen auf einem Gerät vorhanden sein. Dies schafft eine Reihe von Pro- blemen im Zusammenhang mit Bandbreite, Effizienz und Korrelation. Im vorliegenden Beitrag werden mögliche Lösungen diskutiert, wobei im Besonderen der zukunftsträchtige Bereich der adaptiven Anpassung betrachtet wird. Diese wird auch in der Lage sein, bestehende anwenderseitige Herausforderungen zu bewältigen. Schlüsselwörter: Antennen; Mobilkommunikation; Millimeter Received March 29, 2012, accepted April 10, 2012, published online November 9, 2012 © Springer-Verlag Wien 2012 1. Introduction Antennas 50 years ago were simple in principle, usually simple wire structures, which were difficult to analyze theoretically, and they were usually stationary. Designers were concerned with gain, side- lobe level and such point-to-point issues. The emerging satellite communications put high demands on the performance, but ter- restrial mobile communications have changed all that. At least for the handsets the demands on the radiation pattern are minor; in fact the mean gain is unity in a completely random environment. The days of theoretical integral equation studies are over, in fact the present day numerical codes for solving complex electromag- netic structures are so efficient that they are used everywhere. The results are not questioned, which may be a proble

There are no comments yet on this publication. Be the first to share your thoughts.


Seen <100 times

More articles like this

Applied potential tomography.

on Journal of the British Interpl... August 1989

Evaluation of applied potential tomography: a clin...

on Clinical physics and physiolog... 1987

Methods of cardiac gating applied potential tomogr...

on Clinical physics and physiolog... 1988
More articles like this..