Coaxial cables in the Stability™ series from Maury Microwave may be flexible, but they are also rock solid when it comes to maintaining their amplitude and phase characteristics with one or with many flexures. For example, Series SC-35 Stability cables are suitable for applications from DC to 26.5 GHz and boast typical amplitude stability of ±0.02 dB and typical phase stability of ±3.5 deg. with flexure. The typical VSWR is 1.25:1 through 26.5 GHz and the typical insertion loss is 0.67 dB/ft. Higher-frequency Series SC-292 Stability cables operate from DC to 40 GHz with typical amplitude stability of ±0.02 dB and typical phase stability of ±0.05 dB, and typical phase stability of ±5 deg. with flexure. The typical VSWR is 1.25:1 and the typical insertion loss is 0.84 dB/ft.
Both cables are designed for 50-Ω systems; both exhibit nominal velocity of propagation of 76% and nominal time delay of 1.34 ns/in. (or 4.4 ns/m). The shielding effectiveness (SE) is better than 90 dB from DC to 18 GHz. Both cables exhibit phase stability versus temperature of better than 4 deg./GHz from -55 to +125°C. In addition to helping achieve improved accuracy with microwave vector network analyzers (VNAs), these cables are suitable for general bench top testing and in automatic-test-equipment (ATE) systems, or wherever “fear of flexure” may disrupt measurement accuracy.