Design of a TM01-TE01 transmission line for high-power microwave applications
Design of a TM01-TE01 transmission line for high-power microwave applications
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发表时间：
2008
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通讯作者：
Chengwei Yuan;Qiang Zhang
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作者：
Chengwei Yuan;Qiang Zhang
本文报道了一种高功率微波（HPM）圆波导传输线的设计方法和数值计算结果。这种传输线具有90度弯曲，可以改变波的传播方向，同时也可以作为一个TM 01-TE 01转换器，将产生TM 01模的HPM源转换成TE 01模。提出了一种模式转换序列TM01-TE11-TM11-TE01。在该序列中，采用90 °弯曲圆波导TM 11-TE 01模式转换器来改变波的传播方向。此外，设计了紧凑的线性模式转换器TM 01-TE 11和TE 11-TM 11，实现了从TM 01模式到TM 11模式的模式转换。设计的传输线在3.5GHz处的传输效率为97.9%，效率> 90%的带宽为5.3%。
In this paper, we report the design methods and numerical results for a kind of high-power microwave (HPM) circular waveguide transmission line, which has a 90-degree bend to change the wave propagating direction for certain purposes, and meanwhile, also acts as a TM01-TE01 converter, transforming the HPM sources generating TM01 mode into the TE01 mode. A type of mode conversion sequences, i.e. TM01-TE11-TM11-TE01, is proposed. In the sequences, a 90-degree-bend circular waveguide TM11-TE01 mode converter is adopted to change the wave propagating direction. Besides, compact, linear TM01-TE11 and TE11-TM11 mode converters are designed to perform the mode conversion from TM01 mode to TM11 mode. The transmission efficiency of the designed transmission line is 97.9% at 3.5 GHz, and the bandwidth for efficiency>;90% is 5.3%.