A 2.4 GHz PCB antenna is a compact, cost-effective solution for wireless communication in electronic devices. Designed to operate in the 2.4 GHz ISM band, these antennas are etched directly onto the printed circuit board, eliminating the need for external components. They’re commonly used in Wi-Fi, Bluetooth, and IoT applications due to their small form factor and ease of integration. PCB antennas come in various designs, including inverted-F, meandered, and planar inverted-F (PIFA) configurations. While they offer advantages in size and manufacturing simplicity, PCB antennas may have lower gain compared to external antennas. Proper design and placement are crucial for optimal performance, considering factors like ground plane size, nearby components, and device packaging.