Trends and Challenges of Filters in Terminal Products
Abstract
In the field of terminal devices, high-performance radio frequency (RF) filters serve as core components within RF systems and exert a pivotal impact on both receiving sensitivity and transmission efficiency. With the evolution from 2G to 5G technologies, the operating frequency range has been extended from 600 MHz to 7 GHz, which increases the complexity of RF filters significantly. Rigorous system-level requirements have thus been imposed on these filters, including higher integration, better out-of-band suppression, stronger power handling capabilities, and further miniaturization. Meanwhile, lower insertion loss (IL) and all these requirements demand meticulous and intelligent trade-off balancing with number of filters and filter costs. To address these challenges, pioneering breakthroughs in resonator technologies, advanced filter synthesis methodologies, high-performance materials, and precision manufacturing processes are urgently required.
About the Speaker
Mr. XU Jia is the Director of the Wireless Technology Department, Huawei Device. He joined Huawei in 2008. He leads RF and Antenna R&D for Huawei's terminal products and holds numerous patents in terminal products. He has rich experience in RF systems, RF components, antenna and mobile phone architecture innovations. He also leads technical collaborations in RF semiconductor industry, RF algorithms, electromagnetic materials, mobile phone antenna, etc. He received Bachelor's and Master's degrees in Microelectronics and Solid-State Electronics from Southeast University.