Flexible RF cables for 50GHz and 67GHz test systems

Louise Smyth

Pasternack has developed a new line of flexible precision test cables rated to 50 and 67 GHz. Designed for use as test port extenders for a Vector Network Analyser (VNA), the highly durable and flexible test cables are able to withstand use in test labs where they are constantly flexed during common testing situations, writes Nick Flaherty.

The electrical properties of the cable include low VSWR of 1.3:1 at 50 GHz and 1.4:1 at 67 GHz as well as phase stability with flexure of +/- 6° at 50 GHz with the 2.4mm connectors and +/- 8° at 67 GHz using 1.85mm connectors. The braided stainless steel armouring around the coax provides a rugged, but the cable is flexible with a flex life exceeding 100,000 cycles. The rugged stainless steel 2.4mm and 1.85mm connectors provide up to 5,000 mating cycles when attached with proper care. Additionally, the flexibility of these cables makes it easier and safer to test a Device Under Test (DUT). A swept right angle connector option allows these cables to fit in tight spaces and can reduce the length of cable required in many applications.

Alongside VNA extenders, some of the most common applications for the cables are semiconductor probe testing, precise bench top testing and lab/production testing where a flexible, durable cable is needed.

The millimetre wave flexible VNA test cables are available from stock.