Читать книгу Antenna-in-Package Technology and Applications - Duixian Liu - Страница 17

In this section, the early attempts to explore the idea of AiP are reviewed. It should be mentioned that researchers in university labs devoted their efforts regarding Bluetooth radios to 2.4 GHz or other RF applications, while researchers in company labs focused on 60‐GHz radios and other mmWave applications. At 2.4 GHz, a key challenge was how to miniaturize the antenna size, while at 60 GHz, it was how to minimize the interconnect loss between the die and antenna.