Design of wideband diplexer in suspended substrate stripline medium
A wideband diplexer is designed and developed in suspended substrate medium using wide-bandpass filters of 10-14 GHz and 14-18 GHz. Tight coupling between resonators is achieved by etching the resonators on the top and bottom layers of the substrate. The diplexer is designed by combining these filters on a common transformer. Each filter is channelised to avoid waveguide modes. Suspended substrate striplines (SSSs) are characterized using the Finite-Difference Method (FDM). The theoretical and measured results of the diplexer are presented. (c) 2006 Wiley Periodicals, Inc. Int J RF and Microwave CAE 16: 625-628, 2006.
wideband diplexer wide-bandpass filter suspended substrate stripline (sss)