Initial power amplifier products with saturated efficiency

31st July 2019
Posted By : Alex Lynn
Initial power amplifier products with saturated efficiency

Guerrilla RF has introduced the company’s first two InGaP HBT power amplifier products. Both devices deliver 60% saturated efficiency, with high gain and high output power, making them well suited choices for the final stage of applicable transmit chains. The GRF5504 is a high efficiency power amplifier that delivers up to 3.5W at Psat, with Vcc set to five volts and a low Iccq of 120mA.

PAE at Psat is roughly 64% and the device can be tuned over a range of frequencies from around 400 to 500MHz, with typical fractional bandwidths of three to five percent.

The GRF5509 is another high efficiency power amplifier that delivers four watt OP1dB, with Psat approaching five watts with Vcc at five volts and a low Iccq of 125mA. PAE at Psat is 58% and this part can be tuned over a range of frequencies from around 700 to 1,000MHz, with typical fractional bandwidths of three to five percent.

Both devices are supplied in the QFN-16 package (three by three millimetres), with identical pinouts and flexible biasing for both voltage and current. Additionally, high linearity tunes for each part deliver OIP3 numbers greater than 45dBm. These notes for optimal IP3/IMD/ACLR performance in linear applications can be found on the company’s website, under the landing page of the individual part number.

Ryan Pratt, CEO and Founder of Guerrilla RF, said: “Guerrilla RF is proud to introduce our first InGap HBT power amplifiers to the market. The industry-leading saturated efficiency and high output power address a need for cost-effective discrete solutions that deliver strong, consistent performance over flexible operating conditions. These amplifiers provide exceptional and consistent performance at very competitive prices.

“The GRF5504 and GRF55094 are our initial power amplifier product offerings utilising InGaP HBT. We’re also very excited about the introduction of our other InGaP HBT power amplifier products. Stay tuned during the next 12 months for additional announcements regarding these new PA products.”

According to Research and Markets, the overall wireless network infrastructure market will witness tremendous growth over the coming years. At a compound annual growth rate of over five percent, the market will account for over $104bn in annual spending by the end of 2020.

Samples and evaluation boards are available now for both devices, with production available in late Q3/early Q4 2019. Pricing for 10,000 pieces is $2.25 for both parts.

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