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40GHz 1 to 4 power devider and middle amplifer strategy question

yefj

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Hello ,i have a surface mount amplifiers working at 40GHZ with 7 Ghz bandwidth.
i need to create a 1 to 4 power divider and put my amlifier in between and then combine the amplied signal back.

the problem is that the frequency is so large that if i try to do wilkinson power divider then the smt resistor shown bellow in between will be inductor in 40GHZ.

other way i thought is to do multisection 8.34 tandem,connecting two of them to create 3dB coupler.
but i cannot connect in tandem two microstrip couplers.
another problem is that using coupler is like this is not very practical on placing the amplier.
Could any one help me with an idia on how to implement such a thing?
Thanks.

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