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.....
[更多]
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.....
[更多]
| |<首頁 <-上一頁 下一頁-> 末頁>| |
