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Slow wave delay line structure having support rods coated by a dielectric material to prevent rod charging
Slow wave delay line structure having support rods coated by a dielectric material to prevent rod charging
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机译:慢波延迟线结构,其支撑杆涂有介电材料以防止杆充电
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摘要
A radio frequency amplifier having a slow wave structure supported adjacent an electron beam by a support structure. The support structure includes at least one structural support member, having a supporting rod, and a dielectric material disposed on an outer surface portion of the supporting rod. The dielectric material is different from the material of the supporting rod. More particularly the dielectric material is electrically insulating having either a resistivity which reduces upon impingement of electrons from the electron beam or a secondary emission ratio that is substantially unity. The supporting rod has high thermal conductivity and is preferably boron nitride. The dielectric material is preferably titania, magnesia or beryllia.
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