January 2017
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37 Reads
In microwave communication filters are more essential high frequency component. To improve the insertion loss the DGS technique is used. DGS i.e, (defected ground structure) is a technique where cuts are drawn on ground to improve the results and reduce the size of filters. Band passes and band reject filters are the filters which pass and reject the range of frequency. A band pass and band reject filter is designed with GSM upper band center frequency i.e, 1850Mhz.with DGS technique to improve the losses.DGS technique is a proposed version of hexagonal ring and hexagonal head. Performance of filters has been compared in terms of insertion loss. The simulation is carried out with CST software 2010.