Miniaturised microstrip dipexers for WiMAX applications

Miniaturised microstrip diplexer and bandpass filters using single ring resonators with good transmission and reflection characteristics on each channel for WiMAX applications have been presented. The size of the proposed diplexer is reduced. The diplexer is easy to manufacture and the results are easily reproducible. The improvement of the performance of diplexer through introduction of additional transmission zeros is under investigation.