A Highly-Linear Low-Power Down-Conversion Receiver for Digital Transmitter’s Error Detection

Wireless data traffic is projected to steadily increase in the near future, necessitating the demand for transceivers with higher linearity and efficiency. Digital power amplifiers have the potential to achieve these higher efficiency demands while digital pre-distortion can be used to improve their linearity. Digital pre-distortion requires a...

Wideband Digital Intensive Doherty Concepts

Many applications require wide bandwidth transmitters, but unfortunately, they usually have way less than 50% average drain efficiency for their modulated signals. This low efficiency is a significant drawback in all wireless applications, both for battery power devices and base stations. The Doherty radio frequency (RF) power amplifier...

Linear and Efficient Power Amplifier for WiFi

CMOS technology is one of the feasible solutions to meet the world’s growing demand for high data rates because it offers the prospect of SoC at a low cost. But, the PA forms the major bottleneck in making SoC because the PAs in high data rate wireless communication systems have the requirement of high-efficiency and good linearity even at...

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...