Gain pattern of a quarter-wave monopole along with the simulated and measured gain pattern of the prototype antenna over a 9” by 9” ground plane
Locations and lengths (above ground) for each of the stubs
Stub-Loaded Long-Wire Monopoles Optimized for High Gain Performance
Design Synthesis of Miniature Multi-band Monopole Antennas with Application to Ground-based and Vehicular Communication Systems