A low cost phase adjustment network for MMW mix-integrated active antenna

The correct amplitude/phase relationship of each element must be guaranteed especially the phase´s for the active antenna. The phase of the separate element´s T/R is not such usually, therefore the phase adjuster must be used. A low cost phase adjustment network is been proposed for the purpose. A dielectric piece was placed in and two bolts were screwed on waveguide of the signal feed-in modules´ power divider, which can achieve the phase to be tuned largely and precisely separately. The broad wall slotted waveguide coupler is been chosen for the power divider. The simulated and experiment results shown the validity and practicability of such phase adjust network.