N9398C/F/G and N9399C/F DC Block

Introduction

Key Features

• Maximize your operating range - 26.5, 50 or 67 GHz
• Improve calibration accuracy with exceptional return loss >15 dB at 67 GHz
• Maximum available power with < 0.9 dB insertion loss
• 2 choices of DC voltage ratings for a wide range of applications

Description

The Keysight Technologies, Inc. N9398C/F/G and N9399C/F DC blocks offer a new level of DC blocking with broadband performance specified from 50 kHz right up to 67 GHz. Designed to apply AC drive signals to a device while eliminating any DC voltage or current components, these DC blocks feature a broad frequency range, excellent return loss, very low insertion loss and excellent temperature stability. Precision coaxial connector interfaces ensure an excellent impedance match across wide bandwidths, and come in a variety of RF coaxial connector types (3.5 mm, 2.4 mm and 1.85 mm) to meet your application needs.

The Keysight N9398C/F/G and N9399C/F DC blocks are assembled and tested on Keysight precision network analyzers to assure full specifications over their entire frequency range.

Applications

Ruggedness and reliability make these DC blocks suitable for use on the bench and in systems. With low SWR and Insertion loss, they are ideally suited for suppressing DC signals which may affect the accuracy of your microwave and RF measurements or even damage your instruments.

The N9398C/F/G and N9399C/F DC blocks place the capacitance in series with the center conductor, preventing DC signals from flowing along the center conductor which can inadvertently bias other active components. These DC blocks provide good value with excellent broadband performance from 50 kHz to 50 GHz and 700 kHz to 67 GHz at a reasonable cost.

Sample Applications:

1. Amplifier Biasing

DC blocks help prevent any DC signals entering the amplifier and creating a DC offset by acting as a high pass filter. A DC block also can be placed in between two RF amplifier stages to prevent any DC signal from the 1st stage entering the next amplifier stage.

2. Surge Arrestor

Telecommunications based customers may use the DC blocks as surge arrestors before the incoming coaxial data lines are fed into their systems. Here the DC block protects the receiver circuit from any instantaneous voltage surge by absorbing the excess voltage.