PROJECT TITLE :

Very Compact Fully Lumped Decoupling Network for a Coupled Two-Element Array

ABSTRACT:

Without the need of any transmission line, a terribly compact decoupling network based on reactive lumped elements is presented for a two-element closely spaced array. The lumped network, consisting of 2 series and 4 shunt components, will be analytically designed using the even-odd mode analysis. Within the even mode, the [*fr1]-circuit of the decoupling network is a dead ringer for an L-section matching network, while in the odd mode it is equivalent to a π-section one. The proposed decoupling network can cater to the matching conditions of the even and odd modes independently so on simultaneously achieve sensible impedance matching and port isolation of the entire antenna array. The planning principle, formulation, and experimental results as well as the radiation characteristics are introduced.