Download Electromagnetics of body area networks: antennas, by Douglas H. Werner, Zhi Hao Jiang PDF

By Douglas H. Werner, Zhi Hao Jiang

The publication is a entire remedy of the sphere, masking primary theoretical ideas and new technological developments, cutting-edge machine layout, and reviewing examples encompassing quite a lot of comparable sub-areas. specifically, the 1st zone makes a speciality of the new improvement of novel wearable and implantable antenna strategies and designs together with metamaterial-based wearable antennas, microwave circuit built-in wearable filtering antennas, and fabric and/or textile fabric enabled wearable antennas. the second one set of themes covers complicated instant propagation and the linked statistical types for on-body, in-body, and off-body modes. different sub-areas resembling effective numerical human physique modeling options, man made phantom synthesis and fabrication, in addition to low-power RF built-in circuits and comparable sensor know-how also are mentioned. those subject matters were conscientiously chosen for his or her transformational influence at the subsequent iteration of body-area community platforms and beyond.

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Extra resources for Electromagnetics of body area networks: antennas, propagation, and RF systems

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This avoids additional interconnections using glue/epoxy and maintains a consistent surface conductivity. (b) The structure has to be simple and as symmetrical as possible, to ease fabrication. DESIGN STRATEGIES AND EVALUATION METHODS 5 (c) Hard-to-cut shapes/corners should be avoided to minimize fabrication inconsistencies. 1 DESIGN STRATEGIES AND EVALUATION METHODS Antenna Simulation and Evaluation in Free Space Similarly as for a conventional antenna, it is crucial that the performance of a textile antenna is first evaluated using a numerical electromagnetic solver.

3 Deformation Study Another important component of textile antenna evaluation is studying its deformation. Such situations easily occur when a flexible or thin textile antenna is worn on the body. Deformations can be generally decomposed into r r r r Bending Crumpling Stretching Displacement It is important for a textile antenna designer to model and evaluate these deformations in the design stage to be able to predict the practical applicability of the antenna. These investigations aim to capture the impact of instability in the antenna parameters because of variations in, for instance, the amount of antenna bending.

Vandenbosch, and N. Khiabani, “Measurement and performance of textile antenna efficiency on a human body in a reverberation chamber,” IEEE Trans. , vol. 6, no. 2, pp. 871–881, February 2013. [49] K. -S. Kildal, “Study of distributions of modes and plane waves in reverberation chambers for the characterization of antennas in a multipath environment,” Microw. Opt. Technol. , vol. 30, no. 6, pp. 386–391, September 2001. -S. Kildal and C. Carlsson, “Detection of a polarization imbalance in reverberation chambers and how to remove it by polarization stirring when measuring antenna efficiencies,” Microw.

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