TY - JOUR
T1 - Low-Cost Gap Waveguide Technology Using Shallow Grooves and Glide-Symmetric Semicircular-Holes EBG Structures
AU - Tan, Wenhao
AU - He, Yijing
AU - Luo, Hao
AU - Zhao, Guoqiang
AU - Sun, Houjun
N1 - Publisher Copyright:
© 2002-2011 IEEE.
PY - 2023/12/1
Y1 - 2023/12/1
N2 - In this letter, a novel electromagnetic bandgap (EBG) structure is proposed to manufacture gap waveguides (GWs) at high frequencies. The proposed EBG structure combines parallel shallow grooves and glide-symmetric semicircular holes, located on the upper and lower plate, respectively. Attributed to much-reduced milling depth, an efficient and easier manufacturing process can be realized for the proposed structure. Besides, the layout of the milling grooves can be flexibly adapted, making the proposed EBG structure more easily conformal with GWs. As a validation of the concept, both straight and bent side-by-side GWs exploring the proposed EBG structure are elaborately designed, fabricated, and experimentally tested, verifying the features of low loss and high isolation, respectively.
AB - In this letter, a novel electromagnetic bandgap (EBG) structure is proposed to manufacture gap waveguides (GWs) at high frequencies. The proposed EBG structure combines parallel shallow grooves and glide-symmetric semicircular holes, located on the upper and lower plate, respectively. Attributed to much-reduced milling depth, an efficient and easier manufacturing process can be realized for the proposed structure. Besides, the layout of the milling grooves can be flexibly adapted, making the proposed EBG structure more easily conformal with GWs. As a validation of the concept, both straight and bent side-by-side GWs exploring the proposed EBG structure are elaborately designed, fabricated, and experimentally tested, verifying the features of low loss and high isolation, respectively.
KW - Electromagnetic bandgap (EBG) structure
KW - gap waveguide (GW) technology
KW - glide symmetry
KW - millimeter-waves
KW - soft surface
UR - http://www.scopus.com/inward/record.url?scp=85167794356&partnerID=8YFLogxK
U2 - 10.1109/LAWP.2023.3303864
DO - 10.1109/LAWP.2023.3303864
M3 - Article
AN - SCOPUS:85167794356
SN - 1536-1225
VL - 22
SP - 2901
EP - 2905
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
IS - 12
M1 - 3303864
ER -