What is microstrip filter?

A microstrip filter is a type of passive electronic filter that utilizes microstrip technology to achieve frequency selectivity in RF and microwave circuits. It consists of a thin conductive strip patterned on a dielectric substrate, with ground planes on both sides. These filters are known for their compact size, low cost, and ease of integration into circuit boards, making them widely used in communication systems, radar, and other applications. They can be designed to perform various filtering functions, such as low-pass, high-pass, band-pass, and notch filtering.