Compact new X-band SMT circulator features low insertion loss

Smiths Microwave Subsystems has introduced the TRAK X-band surface-mount (SMT) circulator. The device is a low-cost, true SMT circulator compatible with tape-and-reel (pick-and-place) and standard solder reflow profiles. It is designed to replace 'drop-in' and microstrip style circulators. The device provides a 10% bandwidth at X-band, a minimum of 20dB isolation, and 0.45dB maximum insertion loss. Offering up to 20wcw of power handling in a 0.25 inch square by 0.066 inch high package, and an operating temperature of -40C to +85C, the circulators offer high performance with minimal impact on real estate. They greatly reduce costs by eliminating custom mounting configurations required with other circulator styles and install onto your CCA/PWB exactly the same as other SMT components. They target phased-array radar antennas and defence systems applications.