The microstrip junction circulator is another widely-used form of circulator that utilizes the microstrip transmission line topology. A microstrip circulator consists primarily of a circuit pattern on a ferrite substrate. The circuit is typically formed using thick-film or thin-film metallization processes, often including photolithography. The ferrite substrate is sometimes bonded to a ferrous metal carrier, which serves to improve the efficiency of the magnetic circuit, increase the mechanical strength of the circulator, and protect the ferrite from thermal expansion mismatches between it and the surface to which the circulator is mounted. A permanent magnet that is bonded to the circuit face of the ferrite substrate provides the static magnetic bias to the ferrite. Microstrip circulators function in the same way as stripline junction circulators, and their basic theory of operation is the same. In comparison with stripline circulators, electrical performance of microstrip circulators is somewhat reduced because of radiation and dispersion effects.
The microstrip junction circulator is another widely-used form of circulator that utilizes the microstrip transmission line topology A microstrip circulator consists primarily of a circuit pattern on a ferrite substrate The circuit is typically formed using thick-film or thin-film metallization processes often including photolithography The ferrite substrate is sometimes bonded to a ferrous metal carrier which serves to improve the efficiency of the magnetic circuit increase the mechanical strength of the circulator and protect the ferrite from thermal expansion mismatches between it and the surface to which the circulator is mounted A permanent magnet that is bonded to the circuit face of the ferrite substrate provides the static magnetic bias to the ferrite Microstrip circulators function in the same way as stripline junction circulators and their basic theory of operation is the same In comparison with stripline circulators electrical performance of microstrip circulators is somewhat reduced because of radiation and dispersion effects