The Doherty power amplifier (DPA), a component used in wireless communication devices, has two sub-amplifiers operating at different power levels. The differing bias conditions usually lead to unbalanced current driving ability and efficiency reduction. Unlike common techniques employed to achieve i.....
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The device facilitates the fabrication of ME laminate configuration by using a flextensional cymbal located between two terfenol-D plates. A giant magnetoelectric effect in a heterostructure is achieved by clamping an ME terfenol-D alloy actuator and a cymbal-type piezoelectric single crystal-brass .....
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Due to the growing demand for renewable energy sources (“green energy”), the manufacturing of photovoltaic devices has been steadily increased. Photovoltaic devices convert light energy to electricity. One type of photovoltaic device is a photovoltaic module. Many commercially available photovoltaic.....
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Some handheld electronic devices that require a directional pattern are equipped with directional printed antennas, along with a large ground plane. However, such an arrangement is cumbersome and expensive for small devices. The drawback inspires the invention of this novel unidirectional antenna fo.....
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The technology involves the use of an energy recycling device to recycle the energy output from the power conversion units through a grid-interactive inverter. The invention, suitable for the electronic ballast industry, can process high-frequency ballast output power and recycle the power back into.....
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