Answers are grounded in this paper and cite their sources.
A novel design of a planar compact inverted-E tag antenna mounted on metallic objects for UHF RFID systems is proposed. By insetting the slit into the upper horizontal strip of the proposed compact tag antenna, a new resonant mode close to the fundamental mode of the inverted-E antenna is excited to enhance the operating bandwidth. The obtained impedance bandwidth across the operating band can reach about 123 MHz (13.7%) for the UHF band. Also, with directional pattern, the measured reading distance is about 2.5 m when the proposed compact tag antenna is mounted on the metallic object.
No takes yet. Share an insight, caveat, or question.
Lu et al. (2010) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: