National instruments offers rf switches. That is it has doubled its pxl rf switch offering for 50- and 75ohm rf applications with the release of eleven new rf switches. The new modules of rf switches include 4xl, terminated 4xl, dual 4xl and 8xl multiplexers as well as quad  spdt and dual-terminated spdt general-purpose configurations. All the modules offer an extremely low insertion loss [less than 2.1 db at specified bandwidth] and a voltage-standing wave ratio [less than 1.75 at bandwidth] to minimize power loss, voltage attenuation and signal reflections.
Rf Switches - Indian Products Directory