Browsing by Author "Olopade, Abdullah Oluwatosin"

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    Concurrent Dual Band Six Port Receiver
    (2014-01-31) Olopade, Abdullah Oluwatosin; Helaoui, Mohamed
    Receiver front-ends have always been a critical component in wireless communication system design. Its performance and characteristics determines the quality and fidelity of the communication systems. Proliferation of communication protocols and standards however, require that the front-ends should become more flexible, multi-standard and reconfigurable. In addition, to enable higher communication throughput, there have been proponents of concurrent dual-band receiver front-ends to receive signals in more than one band simultaneously. Typical architecture for this concurrent multiband operation uses the front-end stack-up technique, which builds parallel receiver paths with each path dedicated to one frequency band. This increases complexity, power requirement, size and cost. The Six-Port receiver (SPR) is a low power and low complexity alternative to conventional homodyne receiver, which is multi-standard, flexible and easily reconfigurable. This thesis proposes the use of the SPR for a concurrent dual-band operation without any component duplication in the frequency down-conversion path.