ULTRA-SMALL RF CABLE ASSEMBLY

As next-generation communications systems move into the millimeter-wave (mmWave) spectrum, system engineers are challenged to route dense matrices of high-frequency channels within constrained enclosures. Standard coaxial connectors like SMA or 2.92mm interfaces become mechanical bottlenecks when arrayed in high channel counts. To resolve this spatial limitation, ADR Technology have delivered a highly compact, multi-channel ganged RF cable assembly that packs eight channels into a single ultra-small form factor block capable of operating from DC up to 67 GHz.

Mechanical Architecture and Spatial Optimization

The core advantage of this assembly is its ganged multi-channel termination block. Rather than utilizing eight individual threaded coupling mechanisms, the system breaks out from a single multi-position ganged box set measuring just 29mm in width, 15mm in depth, and 6mm in thickness. This block houses eight ultra-dense sub-miniature push-on contacts, functioning as an SMPS female jack interface.

The breakout features eight premium blue flexible coaxial cables, each possessing a nominal outer diameter of just 1.42mm. The opposite end breaks out into eight individual 1.85mm male plugs protected by dedicated white heat-shrink tubing to allow flexible connections to standard lab instruments or evaluation boards. The assembly maintains a flexible bending envelope, supporting a minimum static bend radius of 5mm and a minimum dynamic bend radius of 10 mm.

Electrical Performance and Phase Matching

The assembly delivers excellent electrical stability across the full DC 67 GHz} bandwidth, making it ideal for VNA instrumentation and high-speed semiconductor test fixtures. It holds a standard 50 Ohm characteristic impedance, with performance benchmarks demonstrating robust impedance matching:

• Return Loss sim (40 GHz): -20 dB Max.

• Return Loss (40-67 GHz): -15 Db Max.

Signal propagation velocity reaches 70% of the nominal speed of light, with an absolute operating voltage threshold certified up to 80Vrms. Because multi-channel high-speed digital and RF architectures are extremely sensitive to signal arrival variances, this assembly enforces rigid pair delay parameters.

Insertion Loss Matrix per Cable Length

Transmission loss is tightly bounded based on the nominal length configuration of the assembly, scaling linearly with the cable run:

Length Code Option	Physical Assembly Length	Maximum Insertion Loss (DC∼67 GHz)
150A	150mm	2.30dB Max.
300A	300mm	4.15dB Max.
600A	600mm	7.85dB Max.

Built to remain reliable across extended thermal operating environments spanning from -65°C up to +125°C, this fully HSF-compliant hardware array provides engineers with an effective solution for tight “mmWave" routing challenges.

GET YOUR QUOTE

DOWNLOAD PDF

ASK FOR MORE INFO