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本文介绍一种新研制的可作为无源频率标难的密闭吸收盒,它由一个绕有铜线的石英管构成。在螺线管节距为零的极限情况下图解麦克斯韦方程表明,此盒在所关心的23.8GHz 频率下可作为单模波导,并且可用于10～100GHz范围而几乎不必改制。用468MHz 的微波带状线振荡器作成了一
This article introduces a newly developed sealed absorption box that can be used as a passive frequency target. It consists of a quartz tube wrapped around a copper wire. Graphing Maxwell’s equations at a solenoid pitch of zero limits indicates that the box can operate as a single mode waveguide at the 23.8 GHz frequency of interest and can be used in the 10 to 100 GHz range with little or no modification. Made with a 468MHz microwave stripline oscillator