Leaky Wave Array in Full Planar Substrate with EBG-Based Wave Guiding Channel

Table 1

Comparison of different structures.

Trans. lines	RDW [4]	NRG [7]	SIW [8]	SIIG [9]
Bandwidth (GHz)	10-18	92∼99.2	38∼59	80∼95
S21(dB)	<−2	−5.4∼−3	−1.2∼−1.0	<−3
S11(dB)	<−13	<−10	<−15	<−10
Trans. loss (dB/mm)	0.019∼0.04	/	/	0.025
Trans. mode	HE11	LSE11	TE11	E^y11
Dimension (mm)	10 × 25 × 10	0.635 × 2.84 × 26.3	0.381 × 2.6 × 4	0.525 × 11.49 × 40
Material	RO3010	Alumina	Alumina	TMM10i, silicon
Mode transition	WR-62	WR-10	CPW	WR-10