The WMPD16-2-18-S from Werbel Microwave is a 16-way stripline power divider that operates from 2 to 18 GHz. The divider has an insertion loss of less than 3.3 dB and an isolation of over 15 dB. It can handle up to 20 watts of power as a splitter and has a good VSWR. The WMPD16-2-18-S is available in a module with SMA female connectors.