The possibility of producing a scanned linearly polarized wave beam by using a multiwave Cherenkov generator was studied theoretically and experimentally. As shown theoretically, two periodically alternating transverse modes with the same carrier frequency (9 GHz) can be generated by using azimuthally inhomogeneous periodic slow-wave structures. In the output waveguide, the mode field is essentially linearly polarized. Its transverse distribution is identical to the field distribution of the ТЕМ 00 and ТЕМ 10 modes in a confocal resonator. Theoretical calculations have shown that the angular position of the maximum in the radiation intensity distribution at a fixed distance from such a source varies from –9° to +9° with a period of 17–20 ns. The results of the experiment are in agreement with the theoretical predictions.

中文翻译：

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多波切伦科夫发生器中两种相互作用模式扫描线偏振波束

从理论上和实验上研究了使用多波切伦科夫发生器产生扫描线偏振波束的可能性。如理论上所示，通过使用方位角非均匀周期性慢波结构，可以产生具有相同载波频率 (9 GHz) 的两个周期性交替横模。在输出波导中，模场基本上是线性极化的。它的横向分布与共焦谐振器中 ТЕМ 00 和 ТЕМ 10 模式的场分布相同。理论计算表明，在距这种源的固定距离处，辐射强度分布中最大值的角位置在 –9° 到 +9° 之间变化，周期为 17-20 ns。实验结果与理论预测一致。