Abstract: The ultrawideband (UWB) antenna using two metal frames for mobile devices is presented in this letter. Conventionally, one metal frame and one patch antenna were used for UWB applications in ...

Despite the rapid adoption of LLM chatbots, little is known about how they are used. We document the growth of ChatGPT’s consumer product from its launch in November 2022 through July 2025, when it ...

Abstract: Artificial intelligence (AI) edge devices increasingly require the enhanced accuracy of floating-point (FP) multiply-and-accumulate (MAC) operations as well as nonvolatile on-chip memory to ...