An innovative solar energy collection apparatus designed for mobile communication devices is proposed in this patent. The apparatus comprises a dual function antenna that simultaneously collect solar energy and facilitate wireless communication. The antennas comprise reflective ground planes and a r.....
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Existing methods for multi-string applications require many windings in the isolation transformers because each converter output needs one winding. This invention, a dimmable LED driver, can reduce the number of windings. It also possesses a two-secondary-winding structure to generate several source.....
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This novel antenna developed by CityU has high gain and wideband characteristics, and can be used as an element for constructing antenna arrays. Bandwidth and gain enhancement techniques cannot usually be implemented at the same time, since the structure may become very complicated or bulky. The inv.....
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