Product Model: LPHF-01LFrequency Range: DC to 67 GHzConnector Type: 1.85mm Coaxial (Compatible with 2.4mm RF Connector)Impedance: 50ΩApplication: 5G Communication, Millimeter-Wave Radar, Medical CT Scanner, Industrial 3D Imaging, UAV

What Is the JINPAT LPHF-01L?

The JINPAT LPHF-01L is a high-frequency RF slip ring — also known as a coaxial rotary joint — engineered to transmit millimeter-wave and microwave signals continuously across a rotating interface. Operating from DC up to 67 GHz, it is one of the highest-frequency single-channel rotary signal connectors available in a compact coaxial form factor.

Unlike conventional electrical slip rings designed for power or low-frequency data, the LPHF-01L is purpose-built for applications where signal integrity at microwave and millimeter-wave frequencies is non-negotiable: 5G antenna systems, phased-array radar, satellite communication platforms, high-resolution CT scanners, and industrial non-destructive testing (NDT) equipment.

Key Technical Specifications

Four Core Performance Advantages

1. Ultra-High Frequency Operation (DC to 67 GHz)

The 1.85 mm coaxial interface on the LPHF-01L supports a working frequency range from DC all the way to 67 GHz — covering the full millimeter-wave spectrum used in 5G FR2 band (24–71 GHz), automotive radar (77 GHz adjacent), satellite uplinks, and high-resolution synthetic aperture radar (SAR) systems. This frequency ceiling is a direct result of precision coaxial geometry and strict 50 Ω impedance control across the rotating junction.

2. Mechanical Compatibility with 2.4 mm RF Connectors

The 1.85 mm connector used in the LPHF-01L is mechanically compatible with standard 2.4 mm RF connectors. This means the LPHF-01L can be integrated into existing 2.4 mm-based system architectures without adapter hardware, reducing upgrade costs and system complexity. Engineers retrofitting legacy millimeter-wave platforms with higher-frequency capability will benefit directly from this interchangeability.

3. Miniaturized Coaxial Nested Design

With an outer conductor inner diameter of just 1.85 mm, the LPHF-01L achieves a remarkably small physical footprint. The coaxially nested construction keeps the overall assembly lightweight and space-efficient — a critical attribute for UAV payloads, small robotic joints, handheld NDT probes, and high-density PCB-integrated systems where every cubic millimeter matters.

4. Durable Construction for High-Cycle Rotating Applications

The outer conductor is machined from passivated stainless steel, and the inner conductor uses beryllium copper — a combination that delivers high mechanical strength, excellent wear resistance, and long-term contact stability. This material pairing ensures reliable signal performance even under thousands of continuous rotational cycles or in harsh operating environments with vibration, humidity, or thermal variation.

Application Scenarios

Industrial Automation: 3D LiDAR Robots and High-Speed Vision Systems

Industrial robots equipped with 3D LiDAR scanners and high-definition vision modules generate enormous volumes of point cloud and image data that must be transmitted in real time regardless of the robot arm's rotational state. The LPHF-01L provides the rotating RF link needed to stream this data continuously, preserving the timing precision required for precision picking, welding, and assembly operations.

It is equally well-suited for industrial 3D imaging systems and non-destructive testing (NDT) instruments — such as ultrasonic phased-array scanners and millimeter-wave inspection systems — where high-speed rotation combined with ultra-high-frequency signal transmission is a core performance requirement.

Medical Imaging: CT Scanner Gantry Rotation

In modern CT scanners, the X-ray source and detector array rotate around the patient at high speed while the patient table remains stationary. RF energy and high-resolution image data must cross this rotating interface continuously. The LPHF-01L's 67 GHz capability and low-loss coaxial structure make it a reliable rotary RF coupling component between the rotating gantry and the fixed frame, directly contributing to image resolution and diagnostic accuracy.

Unmanned Aerial Vehicles (UAV) and Small Robotics

The LPHF-01L's compact coaxial nested design and low mass make it ideal for integration into UAV sensor payloads, gimbal systems, and small robotic joints where weight and volume budgets are tightly constrained. During rapid attitude changes, rotational scanning maneuvers, or continuous 360° rotation, the LPHF-01L maintains stable millimeter-wave signal connectivity — eliminating signal dropouts or latency that could compromise mission performance.

Radar and Satellite Communication

Phased-array radar antennas and satellite communication terminals frequently require continuous rotation for azimuth scanning or beam steering. The LPHF-01L enables high-fidelity RF signal transmission across the rotating joint, supporting wideband radar waveforms and high-throughput satellite uplink/downlink channels up to 67 GHz.

Why 67 GHz Matters for Millimeter-Wave Applications

Millimeter-wave technology has moved from specialized military and scientific applications into mainstream commercial infrastructure. The 5G FR2 band (mmWave 5G), used for ultra-high-speed mobile broadband and fixed wireless access, occupies spectrum between 24 GHz and 71 GHz. Automotive radar systems operate at 76–81 GHz. Next-generation satellite constellations operate at Ka-band (26.5–40 GHz) and increasingly at V-band (40–75 GHz).

A rotary joint that reaches only 40 GHz is insufficient for many of these applications. The LPHF-01L's 67 GHz upper limit covers the entire 5G FR2 band and the critical Ka/V-band satellite frequency range, making it a future-proof component choice for system designers working at the frontier of wireless communication and sensing.

Frequently Asked Questions

Q: Can the LPHF-01L be used with existing 2.4 mm RF test equipment?Yes. The 1.85 mm connector is mechanically compatible with 2.4 mm connectors, allowing direct mating with standard 2.4 mm test ports and adapters.

Q: What is the maximum rotation speed?Please contact JINPAT engineering for application-specific speed and torque specifications, as these depend on the system integration context.

Q: Is the LPHF-01L suitable for continuous 360° rotation?Yes. As a rotary joint (slip ring), the LPHF-01L is specifically designed for continuous, uninterrupted rotation with no cable wrap-up limitation.

Q: What makes beryllium copper the preferred inner conductor material?Beryllium copper combines high electrical conductivity, excellent mechanical spring properties, and superior fatigue resistance compared to standard copper or brass — qualities essential for a contact surface that undergoes continuous rotational wear.

Summary

The JINPAT LPHF-01L is a 67 GHz single-channel RF slip ring (coaxial rotary joint) built around a 1.85 mm coaxial interface, compact nested construction, passivated stainless steel outer conductor, and beryllium copper inner conductor. It is designed for system integrators and engineers working on millimeter-wave radar, 5G antenna systems, satellite communication platforms, CT medical imaging, industrial LiDAR robots, and UAV sensor payloads — applications where rotating high-frequency RF signal continuity directly determines system performance.

For technical consultation, custom configurations, or OEM quantity inquiries, contact JINPAT Electronics at sales@jinpat-electronics.com.

Keywords: 67GHz slip ring, RF slip ring, coaxial rotary joint, 1.85mm connector slip ring, millimeter wave rotary joint, high frequency slip ring, LPHF-01L, JINPAT RF slip ring, mmWave rotary connector, 5G slip ring, CT scanner rotary joint, radar slip ring