CAJ | 학술논문

该文利用多模稳态非线性理论，研究损耗材料加载和导引中心半径调节对回旋行波管稳定性改善的效果。结果表明，随着损耗材料电导率的减小返波振荡强度逐渐减小直至完全消失，同时工作模式输出功率显著增大；适当增大导引中心半径后，完全抑制返波振荡需要的损耗更小，可以减轻热损耗散热的困难，同时还能减小管子输出性能对电导率变化的敏感性。
해문이용다모은태비선성이론，연구손모재료가재화도인중심반경조절대회선행파관은정성개선적효과。결과표명，수착손모재료전도솔적감소반파진탕강도축점감소직지완전소실，동시공작모식수출공솔현저증대；괄당증대도인중심반경후，완전억제반파진탕수요적손모경소，가이감경열손모산열적곤난，동시환능감소관자수출성능대전도솔변화적민감성。
In this paper, the effect of distributed loss loading and guiding center radius modifying on the stability of a TE11 mode Gyro-Traveling Wave Tube (Gyro-TWT) is studied by multimode steady-state method. The result shows that the output power of the backward oscillation mode keeps weaken till zero as the conductance of the lossy material reduces, while the output power of the working mode grows significantly. As guiding center radius increases, loss loading needed to suppress oscillation completely is weaker, which makes heat easier to dissipate. Besides, the increment of guiding center radius also makes the output characteristic less sensitive to conductance variation.