Answers are grounded in this paper and cite their sources.
A simple yet practical antenna structure composed of a regular half-wavelength dipole with coupling arms is presented. Adjustment of the amount of coupling to the main dipole through physical dimensions enables operation in either dual-band or wideband mode. Omni-directional radiation patterns can be achieved for both operation modes. The proposed antenna has been implemented for mid- and upper-bands of a WiMAX system. Good agreement between the simulation and measurement results has been observed.
No takes yet. Share an insight, caveat, or question.
Hsu et al. (2012) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: