Research Grants

Summary

This research focuses on the modelling and design of several printed microwave antennas, which are low profile in nature. The antennas operate in the range of 1 to 6 GHz, suitable for wireless broadband network. The radiating structure involves microwave transmission line structures such as microstrip and coplanar. Impedance matching network is incorporated in the feeding circuitry where appropriate.? Variations of feeding network configurations may contribute to different antenna performance. Direct impedance feeds such as the coaxial cable, electromagnetic coupling and aperture coupling, do not need any matching network. However, the optimum location on the antenna structure may be very difficult to be determined. The designed antennas are simulated and selected structures are tested. Good agreements between the simulated and tested designs have been achieved.

Computer Modelling of Acoustics and Sound System of the Enclosed Rooms

Quantification and Prediction of the Effect of Curved Surfaces to the Overall Reverberation Time in Enclosed Rooms