The Mini-Circuits VNA-28B+ is a high-performance voltage-controlled attenuator designed for use in a wide range of applications. With a medium level of popularity, this product is known for its reliable and accurate performance. The manufacturer, Mini-Circuits, is a well-known name in the industry and is known for producing high-quality electronic components. This voltage-controlled attenuator is ideal for use in a variety of applications, including wireless communications, test and measurement equipment, and radar systems.