표 1. | Table 1. 평면형 전송선로에서 구현 가능한 특성 임피던스 범위 및 임피던스 비 | The range of characteristic impedance and impedance ratio that can be implemeted in a planar transmission line.

Transmission line	Structure	Characteristic impedance*	Impedance ratio (ZH/ZL)
MSL	Double-sided	8.2~97.5 Ω	11.9
CPW	One-sided	48.2~105.5 Ω	2.2
CBCPW	Double-sided	8~99.8 Ω	12.5
CPS	One-sided	109~211 Ω	1.9
SL	Double-sided	4.1~65.3 Ω	15.9
Proposed structure (DG-SL)	Double-sided	4.4~270.1 Ω	61.4

Dielectric constant of the substrate: 2.2, height of the substrate: 0.127 mm, height of the stripline and DG-SL: 0.254 mm, gap between two conductors: 0.127 mm, linewidth range: 0.1016~3.56 mm; MSL: microstrip, CPW: coplanar waveguide, CBCPW: conductor-backed CPW, CPS: coplanar stripline, SL: stripline.