The Raystar RC2004A-YHW-CSX is a surface-mount ceramic chip antenna, designed for ISM systems such as ZigBee and 802.11. It is a highpower antenna and can cover 315MHz, 433MHz, 868MHz, and 915MHz frequency bands. It has a small size, measuring just 5mm x 4mm x 2mm, and a wide bandwidth of up to 3 octaves. It also offers up to 7 dBi peak gain. Additionally, the RC2004A-YHW-CSX offers a high front-to-back ratio and a low radiation angle, providing consistent and reliable performance. This makes it ideal for a wide range of wireless applications, including wireless sensor networks, medical device applications, and industrial control.