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HIGHLIGHTS

Superior RF Performance

  • 22 dB gain
  • 8 dBm output power
  • 5 dB noise figure

Bias Option

  • DC Bias Volt/Amp: +15 V at 80 mA
  • Compact size, integral bias regulation

Preamplifiers and System Noise Figure Application Note – This note discusses noise figure basics including applications and characteristics of Keysight’s amplifier technology. Highlighted are Keysight’s 87405C portable preamplifiers that provide an exceptional gain of 25 dB up to 18 GHz and a probe-power bias connection which eliminates the need for an additional DC power supply.  Read the Preamplifiers and System Noise Figure Application Note now!

The Keysight 87405B microwave component amplifier brings compact, reliable gain block performance to systems integrators and microwave designers. With 22 dB minimum gain block and over 8 dBm output power, this amplifier offers output power where it is needed: at the test port.

Accessories Website

For more information about usb preamp, microwave amplifier and system amplifier, please visit Keysight Amplifiers.

87405B 프리앰프

87405B에 관심이 있으신가요?

특집 리소스: 87405B 프리앰프, 10 MHz ~ 4 GHz

Technical Overviews 2025.03.18

87405B Preamplifier 10 MHz to 4 GHz

This is a 5-page, black & white technical specification. The features of the Keysight 87405B Preamplifier include: 24 dB gain, 6.5 dB noise figure, and probe-power bias connection. It brings reliable gain and low noise figure to measurement systems to improve overall system performance and reduce systematic errors. The rugged design, along with its insertable configuration of connectors makes the 87405B ideal for test port applications.

2025.03.18

Application Notes 2017.12.01

Preamplifiers and System Noise Figure

Learn how a low noise preamplifier inserted in front of a spectrum analyzer can help you to obtain a system with lower noise figure. Read more!

2017.12.01

Technical Overviews 2025.03.18

RF and Microwave Amplifiers

A selection guide for the RF and microwave 83006/017/018/020/050/051A and N4985A test system amplifiers, and N4985A-S30/S50 preamplifiers. Selection criteria and application examples are included.

2025.03.18

Brochures 2017.12.01

RF & Microwave Amplifiers

This flyer provides a brief overview and specifications on all Keysight RF & Microwave amplifiers.

2017.12.01

Product Fact Sheets 2017.12.01

RF and Microwave Amplifiers – Product Fact Sheet

This two-page quick fact sheet highlights the key features and specifications for RF & Microwave Amplifiers.

2017.12.01

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