The YC148 from Micro Harmonics is a WR-15 circulator that operates from 58 to 64 GHz. It has an insertion loss of less than 0.4 dB and isolation of greater than 20 dB. This circulator is ideal for point-to-point radio links, portal security systems, radio astronomy and scientific instrumentation, such as plasma diagnostics, chemical spectroscopy and biomaterial analysis.