Cable Assemblies Minimize PIM

April 23, 2015

Coaxial cable assemblies achieve low levels of PIM.

Cable assemblies can add unwanted passive intermodulation (PIM) to a system at various interfaces. Fortunately, a line of cable assemblies with snap-lock QMA connectors offers an alternative to traditional SMA coaxial connectors that can suffer from excessive levels of PIM. These cable assemblies are built with flexible, low-loss TFT-402-LF cables from Times Microwave. The cables are terminated with male QMA straight or right-angle connectors and meet UL910 fire requirements for in-building applications. The PIM levels are -140 dBc or better with standard QMA connectors and -155 dBc or better for premium straight QMA connectors. All of the low-PIM cable assemblies are tested, with measured results available on the firm’s online PIM Tracker function.

RF Industries, Inc., 7610 Miramar Rd., San Diego, CA 92126; (800) 233-1728

About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.