Abstract: This paper presents a novel cable assembly with SMA-type RF (radio frequency) coaxial connector. By adopting the method of coplanaroffset and analyzing the important aspects of affecting the performance of the whole cable assembly, SMA-style RF connector is designed and fabricated to make the cable assembly. During the whole frequency band （0.01~18）GHz, the measured VSWR of the whole cable assembly is less than 1.12. The calculated VSWR of the designed connector is less than 1.06. The VSWR performance of the proposed cable assembly with SMA-type RF connector is better than the VSWR of this kind of familiar cable assembly. The simulated and measured results of the proposed cable assembly are in good agreement to validate the design.

Key words: SMA RF connector, Cable assembly, VSWR