文玉 卜

Parametric Design of a Helical Electromagnetic Bandgap Reflector for an Equiangular Spiral Antenna at 2.5 GHz

This study presents a planar helical electromagnetic bandgap (EBG) structure designed for integration with an equiangular spiral antenna operating at 2.5 GHz. An equivalent-circuit model is introduced, and the effects of the unit-cell width, substrate thickness, metallic-strip wi...