Pasternack has released three GaN low noise amplifiers (LNAs), which withstand high input power without requiring a protective limiter. LNAs using more sensitive semiconductor technologies, such as PHEMT, typically require a protective limiter at the input; however, the limiter adds loss before the LNA, degrading the noise figure.
The three GaN LNAs added to Pasternack’s portfolio cover 1 to 7, 5 to 13 and 1 to 23 GHz. The 1 to 7 GHz LNA has 1.5 dB typical noise figure, 42 dB small-signal gain, 22 dBm output power at 1 dB compression, 31 dBm output IP3 and maximum input power handling of 30 dBm CW. The 5 to 13 GHz design has 1.8 dB noise figure, 44 dB small-signal gain, 22 dBm output power at 1 dB compression, 31 dBm output IP3 and maximum input power of 34 dBm CW. The 1 to 23 GHz amplifier has 3.5 dB noise figure, 29 dB small-signal gain, 20 dBm output power at 1 dB compression, 32 dBm output IP3 and input power handling of 40 dBm CW. The GaN LNAs are biased with 24 VDC and draw from 160 to 250 mA. They are assembled in housings with SMA connectors.
These three GaN LNAs complement Pasternack’s lower frequency LNAs, providing a complete family of options for virtually any RF/microwave application. As with all Pasternack products, the GaN LNAs are in stock and available for immediate shipping with no minimum order quantity required.