Fully-printed phase-compensation method for the outputs of the compact metamaterial dual-band 3-way power-divider

A compact dual-band 3-way metamaterial power divider with the in-phase outputs is presented. Firstly, fully printed CRLH(composite right and left-handed) 2∶1-unequal and 1∶1-equal power dividers are designed for 900-MHz and 2.4-GHz bands. Secondly, an initial 1∶1∶1 power divider is formed by combining the input of the 2-way equal block into an output of the unequal block, and trimming the interconnection parameters. Thirdly, to have the identical phase at the outputs of the power divider, a printable phase-compensating block line is designed to treat the different phase errors at the 2 frequencies.