Dual-band bandpass filter with rectangular shaped defected ground structure / Azliana Abu Kassim

Nowdays, microwave components such as antennas, filters and couplers are widely used in microstrip technology especially for satellite, microwave communication and wireless communication. In the last few years, many researchers have been working on significant improvements to achieve small-scaled microwave circuits in this modern communication system. In order to make the filter compact, one of the methods is to incorporate the Defected Ground Structure (DGS) technology in the filter design. By using this technique as shown in [1], the size of the filter became more compact compared to other ultra wideband bandpass filters (UWB BPFs).