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International Journal of Antennas and Propagation
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International Journal of Antennas and Propagation
/
2018
/
Article
/
Tab 1
/
Research Article
Line Defect-Layered EBG Waveguides in Dielectric Substrates
Table 1
Comparison of the ML-UR waveguides.
Ref
ε
r
Freq (GHz)
Number of rows
Channel length (periods)
Structure strength
Loss (dB/
λ
g
)
[
4
]
~1
15.3
3
4
Low
4
6
4
3.1
[
5
]
2.94
9.8
1
8
High
1.09
This work
3
8
1.8
3
4
3.08
6
4
5.1
Number of rows refers to the layered rings beside the channel, Figure
8(a)
. Channel length refers to the number of periods along the channel, Figure
8(a)
.
λ
g
is the guided wavelength at the indicated frequency of operation band.