Modern communication standards place unique requirements on the system design of transmitters. Application requirements including wide bandwidth, high efficiency, multi-carrier, multi-standard coupled with specific signal requirements including Spectral Emissions Mask (SEM), Bit Error Rate (BER) and Adjacent Channel Leakage Ratio (ACLR) or Adjacent channel power ratio (ACPR) to name a few, can create unwanted system design tradeoffs.
Scintera’s RFPAL family addresses a wide range of applications including small niche applications that have previously been unable to take advantage of predistortion solutions due to complexity and/or cost. With its unique RFin / RFout architecture, RFPAL can be easily integrated into most any transmitter system with high linearity requirements. By using RFPAL, a design engineer can deliver impressive gains in efficiency while maintaining or even improving the linearity performance of most any amplifier operating in backoff – in other words when replacing an existing Class A/AB amplifier running in backoff with one using RFPAL there are no tradeoffs. In fact, by using RFPAL it is even possible to convert a poor efficiency Class A/AB transmitter into a Doherty configuration and achieve even higher efficiency results.
Applications:
- Any application requiring PA linearization
- Software Defined Radio (SDR), HMS/Mobile
military communications and white space - Public safety mobile and portable transmitters
- Customer Premises Equipment
Wide range of PAs and output power levels:
- Amplifier: Class A/AB, Doherty
- Average PA output power: 500 mW to 600+ W
- Process: LDMOS, GaAs, GaN and InGaP
