Impedance matching is often necessary in the design of RF circuitry to provide the maximum possible transfer of power between a source and its load. Probably the most vivid example of the need for such a transfer of power occurs in the front end of any sensitive receiver. Obviously, any unnecessary loss in a circuit that is already carrying extremely small signal levels simply cannot be tolerated
A Microstrip is a type of electrical transmission line used to transmit RF signals and are commonly fabricated using printed circuit board (PCB) technology.
Microstrip filter technology was first released in 1952, since then, numerous advancements in both dielectric material manufacturing and thin film processing techniques have led to the adoption of microstrip filtering for a wider range of applications, especially at mmWave frequencies.
