Zhejiang Chengchang Technology. 

Zhejiang Chengchang Technology Co., Ltd. is a Chinese company specializing in the research, development, manufacturing, and distribution of high-frequency radio frequency (RF) integrated circuits, specifically those operating in the microwave and millimeter-wave spectrum. Its product portfolio includes essential components such as power amplifiers (PAs), low-noise amplifiers (LNAs), analog beamforming chips, and various passive components, all critical for phased array systems. These advanced components are vital for a diverse range of applications, including smart home technology, Internet of Things (IoT) devices, telecommunication base stations, virtual reality (VR) systems, and next-generation 5G solutions. Established in 2010, the company's headquarters are located in Hangzhou, China. Zhejiang Chengchang Technology functions as a subsidiary under Shenzhen H&T Intelligent Control Co., Ltd.