Microwave power transmission system with phase and amplitude controlled magnetrons

N. Shinohara, H. Matsumoto
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引用次数: 15

Abstract

Since the first proposal of a space solar power system (SSPS) in 1968, many different types of SSPS have been proposed. The SSPS reference system, the SPS2000, the Sun Tower and recent Japanese models are among them. Some of them are designed with microwave power transmission (MPT) technology based on a microwave power transmitter with microwave tubes. Electronic tubes, such as klystron or magnetron, have high efficiency (>70%) and high power output (over kW). The other MPT system is a microwave power transmitter with semiconductor amplifiers. However, the efficiency of the semiconductor amplifier is still below 40% and still much more expensive compared with the microwave tubes. The power-to-weight ratio of the semiconductor amplifier is over 50g/W, and heavier than that of a microwave tube (below 30g/W). The higher the efficiency, the less launching weight and size required. We show a new concept of a microwave power transmission system using phase and amplitude controlled magnetrons (PACM) with high efficiency and we propose a new phased array system with PACMs for the SSPS.
具有相位和幅度控制磁控管的微波功率传输系统
自1968年首次提出空间太阳能发电系统(SSPS)以来,已经提出了许多不同类型的SSPS。其中包括SSPS参考系统、SPS2000、太阳塔和最近的日本模型。其中一些是基于微波功率发射机和微波管的微波功率传输(MPT)技术设计的。电子管,如速调管或磁控管,具有高效率(约70%)和高功率输出(超过kW)。另一种MPT系统是带半导体放大器的微波功率发射机。然而,与微波管相比,半导体放大器的效率仍然低于40%,而且仍然要贵得多。半导体放大器的功率重量比在50g/W以上,比微波管重(30g/W以下)。效率越高,所需的发射重量和尺寸就越小。本文提出了一种利用相位和幅度控制磁控管(PACM)的高效率微波功率传输系统的新概念,并提出了一种新的用于SSPS的PACM相控阵系统。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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