Implementation of a Real-time OFDM System (Supervisor: Raviraj S. Adve, Summer 2006)
Developed a real-time Orthogonal Frequency Division Multiplexing (OFDM) system in the Wireless Communications Laboratory using the M62 DSP board and available hardware
A Microstrip Diplexer for use in a 1GHz Radar System (ECE 524, Fall 2006)
Designed and tested a diplexer circuit consisting of two 3 dB branchline microstrip couplers and two Chebyshev bandpass lumped-element filters, to separate a signal from jamming signals at different frequencies
Implementation of Homomorphic Hashing Functions (Supervisor: Frank Kschischang, ECE 496, September 2006 - April 2007)
Developed a C++ library to implement a homomorphic hashing function, which can be integrated with a P2P network to detect the presence of malicious participants within the network
An Active Reconfigurable Reflectarray Antenna (M.A.Sc. Thesis, Supervisor: Sean Victor Hum)
This thesis focuses on a type of antenna known as the reflectarray antenna. In particular,
it looks at the design of an active reconfigurable reflectarray antenna, which has not received much attention in the reflectarray community. Potential applications include deployment as a high gain, reconfigurable antenna for communication links, and as a spatial power combiner. The reflectarray element is an aperture-coupled patch that accepts a linearly polarized wave, phase shifts and amplifies the guided-waves in the
transmission lines, and then re-radiates an orthogonally polarized wave. Stability analysis of the element, experimental results of the designed phase shifter and simulation and experimental results of the element are presented. Fabrication details of a 48 element reflectarray and challenges faced during experimental characterization of the elements are also discussed. The two dimensional beamforming capability and amplifying nature of the array are successfully demonstrated and verified, indicating robustness to phase errors and oscillating elements.