Open AccessBroadband transition between microstrip line and spoof SP waveguide
Author(s) -
Xu Jie,
Cui Yinjie,
Guo Jian,
Xu Zhengbin,
Qian Cheng,
Li Wenyuan
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2016.2027
Subject(s) - microstrip , broadband , return loss , microwave , insertion loss , materials science , waveguide , surface plasmon polariton , optics , optoelectronics , plasmon , surface plasmon , physics , telecommunications , computer science , antenna (radio)
A broadband transition from microstrip line to spoof surface plasmon (SP) waveguide is proposed. The transition transforms the guided wave into a spoof SP polariton in a broad microwave frequency band. A back‐to‐back transition sample is fabricated using the proposed method. Good agreement between the measurement and simulation is obtained. The measured results show an insertion loss <2 dB and a return loss below −11 dB from 2.2 to 10 GHz. The proposed broadband transition may pave a way for advanced conventional plasmonic integrated microwave devices and circuits.