Miniaturization of dual-band Wilkinson power divider using dual transmission line

This paper presents a design of compact dual-band Wilkinson power divider (WPD). The dual transmissions line technique is used to realize 90
⁰
phase shift at two different frequencies in order to miniaturize the circuit area. Therefore overall size reduction of 64% is achieved compared to reference one. The insertion-loss of the output ports is −3±0.5dB with the return loss and isolation performance are < 15dB for both lower and upper frequency bands.