100 PCS AN9520-245 Rainsun 2.4GHz Ceramic Chip Antenna

The AN9520-245 is a multilayer ceramic chip antenna from Rainsun, engineered for 2.4GHz wireless communication systems including Bluetooth, WiFi 802.11b/g, and ZigBee IoT networks. Its compact SMD package measures only 9.5 × 2.1 × 1.0 mm, allowing it to fit into space-constrained PCB designs such as wireless modules, smart sensors, and portable devices. The antenna delivers a peak gain of 1.5 dBi with a center frequency of 2.45 GHz and a 200 MHz bandwidth, covering the 2.4–2.5 GHz ISM band used by most short-range wireless protocols. With a maximum VSWR of 2.0 and a 50 Ohm input impedance, it provides efficient power transfer and stable signal radiation. The omnidirectional radiation pattern with linear polarization ensures consistent coverage in different orientations, while the high-temperature ceramic sintering process improves mechanical and electrical durability. Operating across a wide temperature range of -40°C to +85°C and handling up to 3W of input power, this Rainsun ceramic antenna is a reliable choice for compact 2.4GHz wireless designs.