Power amplifier efficiency optimization

Power amplifier efficiency optimization

While the target application dictates the RF requirements, efficiency and cost are the main differentiating factors for RF power amplifier solutions. Various techniques can be used to improve efficiency, e.g. technologies such as GaN with increased energy density. Envelope tracking and digital predistortion (DPD) extend the linear range of amplifiers. Classic multipath structures such as Doherty and outphasing amplifiers are experiencing a comeback in current designs.

Outphasing, Envelope & Doherty Transmitter Test & Measurement

Outphasing, Envelope & Doherty Transmitter Test & Measurement

This application note provides an overview of RF frontend architectures whose signal output is constructed from two or more efficiently generated components. The capabilities of multichannel signal synthesis setups with the R&S®SMW200A in combination with the R&S®FSW analyzer allows you to measure and develop these types of devices.

Dual input Doherty amplifier

Dual input Doherty amplifier

Dual input Doherty amplifier architecture enables RF PA designers to maximize efficiency, power, bandwidth and yield without compromising linearizability. Whether it is for 5G, SatCom or any other application demanding high performance and reproducibility, the challenges remain the same: how can you be sure that you are getting the maximum possible performance from the design and how can you evaluate its sensitivities and variations for series production?

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R&S®SMW200A vector signal generator

The R&S®SMW200A is the perfect tool for generating high-quality, complex, digitally modulated signals. The R&S®SMW is one of a broad portfolio of signal generators offering wide frequency ranges.

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R&S®FSW signal and spectrum analyzer

The high-performance R&S®FSW signal and spectrum analyzer meets demanding customer requirements. Offering low phase noise, wide analysis bandwidth and intuitive operation, the analyzer makes measurements fast and easy.

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