‘Magic-Cube’ antenna configurations for ultra compact RFID and wireless sensor nodes

Abstract

This paper presents a methodology for characterizing and building antennas on a three-dimensional cubic structure for the first time. By first modeling the inductively coupled non-uniform meander line antenna on a planar substrate, it becomes easier to design the antenna when folded on a cube. The loop size and proximity to meander line, meander line length, and microstrip width are used as independent entities that can be modified for the desired specifications of the RFID application of interest. The 3D antenna discussed in this paper can be applied to the realization of truly ubiquitous dasiaad-hocpsila networks of wireless nodes on low-cost flexible passive UHF RFIDpsilas.