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Cable Technology Feature Article

July 31, 2009

Radiall Unveils New SMP-Spring Adapters

By Jayashree Adkoli, TMCnet Contributor

Arizona-based Radiall USA, a provider of electronic inter-connect solutions supporting telecommunications, defense, aerospace, automotive and industrial markets, announced the addition of new range of SMP bullet female-to-female spring-loaded adapters to its SMP solutions.
Ideal for military applications using active antennas, Radiall's SMP-Spring adapters facilitates designers to handle the mechanical alignment tolerances that are required for module-to-module and board-to-board high frequency interconnections. This feature makes the adapter suitable for active antennas that have a large number of coaxial interconnections per module or up to 60 SMP ports on a single board.
Available in three different lengths, Radiall's latest offerings feature a larger axial tolerance of about 0.046 inch axial travel, which is nearly 4.5 times higher than fixed SMP adapters, says company.
Capable of interconnecting modules having different geometries, SMP-Spring adapters are larger in size and allow for less design constraints with no compensation requirements for material expansion or deformation.
In addition, Radiall's new SMP-Spring adapters feature radial misalignment tolerance of +/- .010" (+/-0.25mm) and 1000 mating cycles. Its operating frequency range is DC-18GHz and 1.2 Max VSWR at 12GHz. It also features high density with center to center spacing as low as 4.8 mm, and min board-to-board spacing of 8.3 mm.
Radiall said that the current SMP range includes straight and right angle connectors for semi-rigid and flexible cables, edge card receptacles, hermetic receptacles, shrouds, adapters, and more.
Some of the military applications leveraging Radiall's new SMP-Spring adapters include phased array active antennas, satellites, airborne, shipboard or ground radars.
Radiall recommends using the SMP-Spring adapter with company’s full detent receptacle, which can be connected on the spring side of the adapter, and the smooth bore "catcher's mitt" receptacle can be connected on the other side. The cone shape of the "catcher's mitt" receptacle allows for guiding the female interface of the adapter with ease, the company said.
Apart from adapters, Radiall USA also offers an extensive range of RF coaxial connectors and cable assemblies, coaxial switches, fiber optic and microwave components, multi-pin connectors and more.

Jayashree Adkoli is a contributing editor for TMCnet. To read more of Jayashree's articles, please visit her columnist page.

Edited by Amy Tierney