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Programmable Phase Shifter & Attenuator Matrix

With the development of 5G Technology, it is necessary to adjust the signal energy value and position relationship of different channels during the test. HBTE takes pride in our programmable phase shifter & RF attenuator matrix which can control the attenuation and phase of the signal. The RF phase shifter is suitable for 3D MIMO and 5G massive MIMO beamforming tests, multi UE throughput peak tests, multi UE handoff tests, etc.

Key Features of Programmable Phase Shifter

  • High reliability and exceptional accuracy

  • Large bandwidth and low insertion loss

  • Broad attenuator adjustable range

  • Configuration flexibility

Configurations List of RF Phase Shifter and RF Matrix

Specification of the Programmable Phase Shifter & Attenuator Matrix

How does a programmable phase shifter work?

A programmable phase shifter is an electronic component that is used to adjust the phase of a signal by a specific amount. It is commonly used in microwave and RF systems, such as in radar, communication systems, and phased array antennas.

There are several ways to implement a programmable phase shifter, but one common method is to use a series of tunable delay lines, each of which introduces a specific phase shift to the signal. By controlling the delay time of each delay line, the overall phase shift of the signal can be adjusted.

In more detail, a programmable phase shifter consists of a series of microwave transmission lines, typically made of microstrip or stripline, with variable electrical lengths. Each transmission line is coupled to a variable impedance device, such as a PIN diode or varactor diode, which can be controlled to vary the effective length of the line. This changes the phase shift that the signal experiences as it passes through the line.

By adjusting the impedance of each variable device, the effective length of each transmission line can be tuned, resulting in a different phase shift for each line. By combining the signals from each line with a power divider, the overall phase shift of the output signal can be precisely controlled.

The programmable phase shifter can be controlled by a digital-to-analog converter (DAC) or other electronic circuitry, which sets the impedance of each variable device to achieve the desired phase shift. This allows for precise, fast, and accurate adjustments of the phase of a signal, making it an important component in many RF and microwave systems.


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