Design of an Ultra-Wideband Transition from Double-Sided Parallel Stripline to Coplanar Waveguide

Table 2

Performance summary of DSPSL-to-CPW transitions.

	Bandwidth (GHz)	Insertion loss	Return loss	Dielectric constant of the substrate
[9]	1.1∼6.45	<1.8 dB	>10 dB	9.6
[10]	1.3∼9	<1.4 dB	>10 dB	6.15
[11]	0.5∼14	<1 dB (Some resonant points exist)	>10 dB (Some resonant points exist)	3.38
This work	0.04∼27	<1.2 dB	>10 dB	3.38