Open AccessDesign of a metallic photonic crystal high power microwave mode converter
Author(s) -
Dong Wang,
Sha Xu,
Cao Yan-Wei,
Fen Qin
Publication year - 2014
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.63.018401
Subject(s) - microwave , materials science , energy conversion efficiency , transmission line , center frequency , microwave transmission , electrical engineering , optoelectronics , x band , photonic crystal , power (physics) , bandwidth (computing) , optics , physics , computer science , engineering , telecommunications , band pass filter , quantum mechanics
Electromagnetic properties of a two-dimensional metallic photonic crystal in a transmission line is analyzed, and a compact TEM-TE11 high-power microwave mode converter which takes this type of sturcture for phase-shiftting is presented. An L band TEM-TE11 mode converter is optimized using the commercial software cst microwave studio. Its conversion efficiency is 98% at the center frequency of 1.58 GHz. Over the frequency range of 1.56–1.625 GHz, the conversion efficiency exceeds 90%, with a corresponding bandwidth of 4.1%. This mode converter has a gagawatt level power handling capability, thus it is suitable for narrow band high-power microwave application. Using magnetically insulated transmission line oscillator as a high-power microwave source, particle-in-cell simulation is carried out to test the performance of the mode converter. It is found that the proposed mode converter works well with this narrow band high power microwave device.