A Compact and Customizable Operation Frequency Filter for Broadband Applications

抄録

A novel compact customizable EBG (Electromagnetic Bandgap) filter operating from 2.6 to 10.0GHz is proposed. The EBG filter is manufactured by a 2-layer PCB (Printed Circuit Board) process in RO4350 substrate with surface mounted lumped capacitors. A specific working frequency of the filter is selected on demand by adjusting the value of the capacitors, while the filter’s performance is not compromised. The experimental results show a filter with size of 2.50×3.00×1.00mm³ in PCB achieving performance of insertion loss of 3.34dB, 1.19dB and 1.20dB at 2.60GHz, 7.71GHz and 10.0GHz with the capacitor of 5.1pF, 0.5pF and 0.3pF respectively.