Wideband High Power Doherty Amplifiers

Currently the Doherty Power Amplifier (DPA) is replacing the traditional Class B amplifier in base-station and broadcast applications, as such becoming the preferred choice of industry due to its simplicity and high efficiency performance. In spite of its success, so far practical DPA implementations can provide only a very limited RF bandwidth,...

Multi-band/Multi-Mode RF Front-end Receiver for Basestation Applications

In the last couple of years, mobile telephony has truly become global, with more than 4 billion users worldwide nowadays (compared to less than 1bn ten years ago). This has represented a boost not just for the mobile phones industry, but also for that of wireless infrastructure. Larger-scale production and increased competition have transformed...