Answers are grounded in this paper and cite their sources.
A circularly polarized sleeve-badge antenna is proposed for a 2.45 GHz frequency band. The proposed antenna is small and thin enough to fit within a standard jacket sleeve badge, while the assembly is based on the standard off-the-shelf parts, which enables simple and cost-effective mass production. A wide beamwidth and a 5.6% impedance bandwidth provide practical properties.
No takes yet. Share an insight, caveat, or question.
Joler et al. (2018) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: