A New Broadband Miniature RF Power Splitter

This paper concerns the design and testing result of a 3 dB power splitter. In this work, a transformer-type Wilkinson power splitter was developed for a RF power distribution network, which is based on lumped parameters components. The testing results displayed that the power splitter showed highly RF characteristics including the insert loss is less than 1.3 dB, the amplitude and phase imbalance between the two output ports is less than plusmn0.13 dB and 5deg, and the isolation between the two output ports is less than -15 dB. And the dimension splitter is only 8 mm times 6 mm, this power splitter has a simple design method, low cost and small size.