PCB Printed Monopole Antenna Layout for Compact Wireless Dongles

The patent applies dimensionality change by transitioning from a traditional three-dimensional antenna structure to a two-dimensional printed circuit board (PCB) integrated antenna. The antenna is designed as a planar structure with specific geometric patterns (including circular and rectangular elements) that can be directly fabricated on the PCB substrate. This dimensional reduction allows the antenna to achieve compact size while maintaining controlled impedance and stable radiation characteristics through careful design of the planar geometry, thereby resolving the contradiction between miniaturization and operational stability.

The patent merges the antenna structure with the PCB substrate by integrating the antenna elements directly into the circuit board design. The antenna traces are formed using the same PCB fabrication process as the circuit traces, eliminating the need for separate antenna components. This integration allows the antenna to be miniaturized along with the overall device while maintaining stable performance through optimized trace geometry, substrate material selection, and grounding structure design that are co-optimized with the compact form factor.