Title :
Electromagnetic band gap substrate for planar microstrip meander line travelling wave tube
Author :
Bai, Ningfeng ; Fan, Hehong ; Zhao, Xingqun ; Feng, Jinjun ; Liao, Fujiang ; Sun, Xiaohan
Author_Institution :
Res. Center for Electron. Device & Syst. Reliability, Southeast Univ., Nanjing, China
Abstract :
Novel dual-square electromagnetic band gap (EBG) substrate is investigated to improve the performance of planar microstrip meander line travelling-wave tube (MML-TWT). According to the simulation results, this EBG structure can improve coupling impedance double and extend bandwidth from 9.5GHz to 10.5GHz. This structure also can be fabricated in one-dimensional for the MML-TWT. In other words, it has same transverse dimension of MML-TWT, which is important to fabricate the planar travelling wave tube.
Keywords :
microstrip lines; photonic band gap; travelling wave tubes; bandwidth 9.5 GHz to 10.5 GHz; coupling impedance; dual-square electromagnetic band gap substrate; planar microstrip meander line; planar travelling wave tube; transverse dimension; Couplings; Impedance; Metamaterials; Microstrip; Microwave filters; Periodic structures; Substrates; dual-square EBG; microstrip meander line; planar travelling wave tube; square-ring EBG;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2012 IEEE Thirteenth International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4673-0188-6
Electronic_ISBN :
978-1-4673-0187-9
DOI :
10.1109/IVEC.2012.6262144
