Model WM4PD-0.5-26.5-S from Werbel Microwave is a wideband 4-way in-line power splitter covering of 500 MHz to 26.5 GHz with excellent return loss, low insertion loss, and high isolation performance.  The product is a new offering of the 26.5GHz series offered by Werbel Microwave.  Precision assembled, tested, and designed in the USA.