In this work, a tag-load selection methodology is proposed for optimized tag-to-reader backscatter communication. Derivation of the method is based on antenna/communication theory and applies to any tag-antenna, including minimum scattering antennas as a special case. In contrast to what is commonly believed, it is shown that amplitude maximization of complex reflection coefficient difference between the two states is not a sufficient condition for optimized tag's design. Maximization of backscatter carrier power per bit must be sought as well. Optimum loadselection for passive and semi-passive tags is linked to the tag-antenna's structural mode. A method that allows for the closed-form calculation of this parameter is put forward.
|Title of host publication||Final Program and Book of Abstracts - iWAT 2010|
|Subtitle of host publication||2010 International Workshop on Antenna Technology: Small Antennas, Innovative Structures and Materials|
|Publication status||Published - 2010|
|Event||2010 International Workshop on Antenna Technology: Small Antennas, Innovative Structures and Materials, iWAT2010 - Lisbon, Portugal|
Duration: 1 Mar 2010 → 3 Mar 2010
|Other||2010 International Workshop on Antenna Technology: Small Antennas, Innovative Structures and Materials, iWAT2010|
|Period||1/03/10 → 3/03/10|