Contributions to Reconfigurable Filter Banks and Transmultiplexers

to my family... A current focus among communication engineers is to design flexible radio sys-tems to handle services among different telecommunication standards. Thus, low-cost multimode terminals will be crucial building blocks for future generations of multimode communications. Here, different bandwidths, from different telecom-munication standards, must be supported. This can be done using multimode transmultiplexers (TMUXs) which allow different users to share a common chan-nel in a time-varying manner. These TMUXs allow bandwidth-on-demand. Each user occupies a specific portion of the channel whose location and width may vary with time. Another focus among communication engineers is to provide various wideband services accessible to everybody everywhere. Here, satellites with high-gain spot beam antennas, on-board signal processing, and switching will be a major comple-mentary part of future digital communication systems. Satellites provide a globa