,is study proposes and designs a multiband branch antenna with a structure that imitates the Chinese classical pattern structure. ,e antenna radiator’s structure is a symmetrical rectangular stub fused with a Chinese classical pattern structure, and the rectangular stub is bent so that the outer and inner stubs are coupled to each other to generate multiple frequency bands. Microstrip line feeding is the feeding mode, and the grounding plate is a trapezoidal structure formed by subtracting two triangles from a rectangle. ,e overall size of the antenna is 60 × 60 ×1.6mm3, and the dielectric board adopts FR4. ,e substrate dielectric constant εr � 4.4, the thickness h � 1.6 mm, and the dielectric loss tangent tanδ � 0.02. For antenna modeling and parameter optimization, HFSS electromagnetic simulation software is used. ,e antenna can cover 1.49 to 1.60 GHz, 1.87 to 2.51 GHz, and 4.63 to 5.34 GHz and generate three main frequencies: 1.57, 2.15, and 5.06 GHz, according to test result. ,e antenna has omnidirectional radiation characteristics and can be widely used in future mobile communication network coverage.
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