Resistive Active Balanced Power Divider Design with Touchstone and Kron’s Formalism Hybrid Model
Keywords:
Active microwave circuit, design method, hybrid model, Kron’s formalism, Power Divider (PWD), resistive topology, synthesis relations.Abstract
A resistive active power divider (RAPWD) design based on Kron’s model is introduced. The threeway RAPWD topology is essentially constructed with a low noise amplifier (LNA) with input and output matching shunt resistances. The RAPWD S-parameter is analytically expressed from the Kron’s method hybridized with the LNA touchstone model. The RAPWD synthesis relation is established in function of the expected gain and matching access. The feasibility of the established Kron’s method modelling is validated with a proof-ofconcept (POC) using the surface mounted monolithic LNA LEE-9+ from mini-circuits. As expected, S-parameters are in good correlation between simulations and computed results from the proposed hybrid method. A relatively flat transmission gain of about 9+/-0.2 dB is realized in the very wide frequency band 0.5 to 4.5 GHz. The broadband tested RAPWD input and output matching and access port isolations are widely better than 10 dB.
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