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Whitepapers

Norman Smith, Vice President of the Wireless Business Unit at WP Wireless, presented his whitepaper “Embedded Antenna Considerations for Successful Bluetooth and WI-FI Co-existence in SMART phones and PDA's” co-authored by Hewlett-Packard, at WICON October 5-6, 2005.

Summary of presentation
This paper describes essential antenna design considerations as well as best practices for successful integration and co-existence of Bluetooth™ and WI-FI technologies in converged devices, Pen and key based PDA’s or SMART phones. The importance of spatial and cross polar isolation is discussed. Further, this paper discusses novel antenna layout considerations for electrically small embedded antennas to overcome practical hand-held device issues such as hand-loading effects and optimization of antenna polarization for various user models. Consideration is given to the typical user models, as defined by Hewlett Packard, such as portrait and landscape modes in order to ensure an optimum end-user wireless experience. It will be shown through measured VSWR results that an electrically small embedded antenna, deployed as a classic monopole, is sensitive to hand-loading effects when the same antenna deployed as a hybrid ceramic/IFA approach results in stabilization of the antennas’ resonant frequency even under typical loading conditions. Finally - antenna technology selection considerations in terms of cost, RF performance, size and commercial availability are presented based on various embedded antenna technologies in today’s wireless markets.

Download Embedded Antenna Considerations Whitepaper (PDF-344K)

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