Design of Wilkinson RF Power Divider
Filter Technology offers a comprehensive selection of 2-way broadband power dividers for frequency from 0.3 to 50GHz,low insertion loss,low VSWR,high isolation,custom packaging can be supplied.

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2 way Power Divider 2.4mm Connectors From 0.5GHz to 50GHz Rated at 20 Watts (CW)
The HRT-PD0P550-0224 is a 2 way Wilkinson power divider that operates from 0.5 to 50 GHz and can handle up to 20 Watts . This power divider offers 15 dB Isolation and 1.60:1 max VSWR. The package interface uses 2.4mm connectors on all of the ports.
Frequency Range 0.5-50 GHz Nominal Splitter 3.0 dB Insertion Loss 3.0 dB max Input VSWR 1.60:1 max Output VSWR 1.60:1 max Isolation 15 dB min Amp. Unbalance ±0.5 dB max Phase Unbalance ±6° max Power Handling 20 Watts(Forward Power); 0.5 Watt(Reverse Power) Input Connector 2.4mm-Female (50 ohms) Output Connectors 2.4mm-Female (50 ohms) Size 150*26*10 mm Suface Finish Black Painted
Test Plots


More details can be seen in data sheet.
http://www.filter-mw.com/a/164.html
