Low-Profile Differential-Fed Flat-Top Beam Antenna Design Based on Independent Regional Tailoring of High-Order Mode
This paper presents a novel low-profile, single-layer, differentially-fed microstrip antenna with a flat-top beam (FTB). By incorporating a central hexagonal slot together with four elongated slots and two short slots, the proposed antenna tailors high-order modes to achieve the desired radiation characteristics. By analyzing the electric field, the distribution in various regions is decomposed an
