Planar Monolithics (PMI) Model PMC-14D5G15D5G-SMA is a monopulse comparator operating over the 14.5 to 15.5 GHz frequency range that offers a maximum 2.6 dB insertion loss while maintaining a maximum amplitude balance of ±0.8 dB, a maximum phase balance of ±10° and a maximum VSWR of 1.60:1. Housing measures 3.12" x 3.12" x 0.43" with SMA female connectors. https://www.pmi-rf.com/product-details/pmc-14d5g15d5g-sma
Monopulse Comparator, PMC-14D5G15D5G-SMA

