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首页> 外文期刊>Electrical Engineers - Part IIIA: Radiolocation, Journal of the Institution of >Wave guides
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Wave guides

机译：波导

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摘要

Wave guides, though known in principle for many years, became of practical importance only with the advent of centimetre wavelengths, and are now, because of their low attenuation and high power-handling capacity, the standard feeders for these wavelengths. They only transmit energy freely above a critical frequency. Energy may then be propagated in one or more modes, and single-mode propagation is desirable for practical purposes; this is achieved by the use of wave guides of rectangular cross-section. Transmission-line theory can usefully be applied to wave guides. The use of wave guides involves a number of auxiliary components such as couplings, bends, corners, branches, switches, rotating joints, etc., whose design involves specialized techniques. The use of a single aerial and wave guide for both transmission and reception has led to close integration of wave-guide technique with transmitter and receiver design; there is similarly a close integration of wave guide and aerial techniques.
机译：波导虽然原则上已经知道很多年了，但是仅在厘米波长出现时才具有实际意义，现在由于其低衰减和高功率处理能力而成为这些波长的标准馈线。它们仅在临界频率以上自由地传输能量。然后可以以一种或多种模式传播能量，并且出于实际目的，单模传播是理想的。这是通过使用矩形横截面的波导来实现的。传输线理论可以有效地应用于波导。波导的使用涉及许多辅助部件，例如联轴器，弯头，拐角，分支，开关，旋转接头等，其设计涉及专门技术。发射和接收使用单一的天线和波导已经导致了波导技术与发射机和接收机设计的紧密结合。类似地，波导技术和天线技术也紧密结合在一起。

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