%0 Journal Article
%T Theory and simulation of the folded waveguide traveling-wave tube working in low voltage with changed period and big size<br>变周期大结构低压工作折叠波导行波管的理论与模拟研究
%A Hu Quan
%A <br>胡权
%J 物理学报
%D 2012
%I 
%X The folded waveguide traveling-wave tube which works at 3 mm band and above the band is limited to machining accuracy and power capacity. So a slow-wave folded waveguide structure which has a finite number of cycles and whose period can be changed nonasymptotically is proposed. Firstly, the theory for effectively increasing the high-order space harmonic coupling impedance of the structure is given. And the expressions for dispersion and coupling impedance are derived. Then through the simulation, a set of optimized design parameters is achieved. Thus the operating point of the traveling-wave tube is determined. Finally, it is simulated by MAFIA. And an effective gain is obtained. The traveling-wave tube which works at low voltage, relatively large size and relatively large period, is designed.
%K folded waveguide
%K varying-period
%K high-order mode
%K traveling-wave tube<br>折叠波导
%K 变周期
%K 高次模式
%K 行波管
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=9903A07B9322879AC411663F54BC80E0&yid=99E9153A83D4CB11&vid=1D0FA33DA02ABACD&iid=CA4FD0336C81A37A&sid=BB2C9A28808966F0&eid=BB2C9A28808966F0&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=13