Renaissance Electronics Corp. has developed a 225-to-400-MHz coaxial circuator for military communications applications. The lumped-element circulator features a patent-pending design that preserves the symmetry between ports while achieving broadband performance. The circulator features typical isolation of 16 dB beween ports and typical insertion loss of 1 dB, with VSWR of 1.40:1. Signal leakage levels are a mere -100 dBc while second-harmonic levels are less than -60 dBc. The rugged component measures 2.05 x 2.58 x 1.14 inches and is suitable for avionics applications. It is available in the form of an isolator with power-handling capability to 60 W CW. For more information, visit the company's website at: