Line Defect-Layered EBG Waveguides in Dielectric Substrates

Table 1

Comparison of the ML-UR waveguides.

Ref	εr	Freq (GHz)	Number of rows	Channel length (periods)	Structure strength	Loss (dB/λg)
[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.