A Compact 1 to 2 Wilkinson Power Divider for 2.4 GHz/UWB with Band-Notched Characteristic Using Simple Defected Ground Structure

Abstract

This paper proposes a novel planar Wilkinson power divider operated in 2.4 GHz/UWB with a notch characteristic in the 5.2 GHz WLAN band (4.7–5.7 GHz) by using a simple defected ground structure (DGS). Over the whole operating band except the notched frequency band, the measured results explore broadband operation with return loss of higher than 10 dB, a low insertion loss of less than 0.8 dB and good isolation of higher than 10 dB. It shows good agreement with the simulation results.