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This paper aims to effectively integrate a GaN amplifier into a high-efficiency active-antenna design. In this paper, the antenna is designed for a GaN high-electron-mobility-transistor (HEMT) impedances calculated by a load–pull simulation with a GaN nonlinear model, which contributes to a lossless design and prevents power-added-efficiency (PAE) reduction by active-antenna integration. The antenna...
We propose a new rectifier for microwave wireless power transfer using a multilayer substrate filter as an output filter. First, we designed three and four layer substrate filters with a electromagnetic field simulator and obtained their filtering characteristics. Next, we applied each multilayer substrate filters designed above to an output filter of rectifier and simulated its rectification efficiency.
High-efficiency rectifier circuit is required for microwave power transfer. In this paper, we studied on the operation of a rectifier circuit with intermittent input signal. Intermittent signal has high peak-to-average power ratio. We can expect an improvement of RF-DC conversion efficiency by using intermittent input signal. However, the operation of a rectifier circuit after the input stopped is...
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