DC to 26.5 GHz Phase-Stable RF Cable with PFA Jacket and Integrated Armor

This product is an armored RF cable for high-stability amplitude- and phase-stable RF test interconnection. It is specified with 50 ohm impedance and an operating range from DC to 26.5 GHz. Listed electrical characteristics also include 82% velocity, shielding effectiveness above 90 dB, and 1500 V DC voltage withstanding. End connectors, assembled cable length, and the final installation arrangement are not specified in the supplied parameters

The specified cable construction includes a silvered-copper center conductor, LD-PTFE dielectric and middle layer, silvered-copper tape inner shield, braided silvered-copper-wire outer shield, PFA jacket, and compound-material armor. The construction progresses to a 5.10 mm PFA-jacket diameter and a 7.60 mm final armored outside diameter. The supplied information defines the cable structure and its performance values.

The cable is specified for DC to 26.5 GHz operation with 50 ohm impedance. Flexure amplitude stability is below +/-0.05 dB, while mechanical phase stability is below +/-5 degrees. At the stated typical conditions of 25 deg C and sea level, attenuation increases from 0.15 dB/m at 300 MHz to 1.59 dB/m at 26500 MHz. The corresponding listed power values decrease from 1522 W to 140 W, so both values should be evaluated at the required frequency

The cable uses a silvered-copper tape inner shield and braided silvered-copper-wire outer shield, with shielding effectiveness specified above 90 dB. Compound-material armor forms the final 7.60 mm outside diameter over the 5.10 mm PFA jacket. Mechanical values include a 38 mm static bend radius, a 76 mm dynamic bend radius, and 600,000 bending times.

For selection, compare the required operating range with the specified DC to 26.5 GHz range and verify the 50 ohm system requirement. Installation planning should consider the 7.60 mm final outside diameter, 38 mm static bend radius, 76 mm dynamic bend radius, and -55 to +125 deg C temperature range. For loss and power evaluation, use the listed typical values at 25 deg C and sea level for the applicable frequency.