In today’s era of high-speed RF transmission and precise microwave connections, the KH-SMAKW-IPEX4-RG1.37-B80 adapter cable has become the preferred solution for many communication device engineers and RF developers due to its stability, flexibility, and high performance. As a professional RF connection solution launched by Kinghelm, this product demonstrates exceptional industrial-grade design and performance, suitable for RF transmission environments demanding compact space, high frequency, and signal integrity.

Kinghelm KH-SMAKW-IPEX4-RG1.37-B80 Product Image

Product Overview and Structural Design
Kinghelm’s KH-SMAKW-IPEX4-RG1.37-B80 is a five-piece set SMA right-angle female to 4th generation IPEX RF adapter cable. Each cable is approximately 8cm long and uses premium RG1.37 black coaxial cable, offering excellent flexibility and bend resistance—ideal for flexible routing inside compact devices. One end features a standard 11-thread SMA right-angle female connector, while the other end uses a 4th generation IPEX micro connector designed specifically for high-density RF connections. This makes it suitable for modular communication systems, Wi-Fi, Bluetooth, GNSS positioning antennas, and other internal device connections.

Product Advantages and Highlights
The KH-SMAKW-IPEX4-RG1.37-B80 RF adapter cable stands out for its low loss, high shielding effectiveness, and strong adaptability. The RG1.37 cable provides superior electrical performance by maintaining transmission efficiency and reducing signal attenuation, effectively minimizing external interference to ensure stable and efficient RF signal transmission between different modules. The SMA right-angle female connector suits compact device layouts, and combined with the compact IPEX connector, it optimizes overall device architecture and improves engineering assembly efficiency.

Furthermore, this adapter cable supports a wide frequency range and broad compatibility, reliably supporting 2.4GHz and 5.8GHz Wi-Fi bands, and is also suitable for GNSS antenna interface conversion (e.g., GPS/BeiDou), making it highly versatile for engineering applications.

Material Craftsmanship and Application Stability
The cable’s outer sheath uses a high-density insulating layer to effectively prevent aging, cracking, and internal conductor damage from frequent bending. The connectors are gold-plated to ensure excellent conductivity and corrosion resistance, maintaining signal quality even in harsh industrial environments with high temperature and humidity. The product undergoes rigorous quality control, including pressure resistance, insertion loss, and VSWR testing before shipment, guaranteeing industrial-grade connection standards for every unit.

Kinghelm Brand and Supporting Product Solutions
As a leading domestic supplier of RF and connector solutions, Kinghelm focuses not only on optimizing individual connector performance but also offers comprehensive RF transmission and connection solutions. Besides the KH-SMAKW-IPEX4-RG1.37-B80, Kinghelm provides a variety of high-precision connection cables including IPEX-to-IPEX, IPEX-to-U.FL, SMA-to-MCX adapters, embedded antennas, positioning antennas, Wi-Fi antennas, Bluetooth module cables, and more—covering connection needs across consumer electronics, industrial control, automotive navigation, and security equipment.

Kinghelm maintains independent R&D capabilities and a stable production and delivery system. All products comply with ISO9001 quality management certification and meet RoHS and REACH environmental standards, satisfying the high-quality and timely delivery requirements of OEM/ODM customers worldwide.

Application Scenarios and Market Value
This RF adapter cable is widely used to extend from standard SMA interfaces to miniature RF modules in embedded system development, module debugging and testing, communication module integration, smart device R&D, and industrial IoT terminal integration. It plays a critical connection role in drones, smart homes, security monitoring, automotive electronics, industrial routers, Wi-Fi repeaters, and other terminals, facilitating efficient RF communication.

Thanks to Kinghelm’s product line’s high compatibility and quality stability, customers can freely select according to device layout, space constraints, and frequency band requirements, easily creating RF connection solutions tailored to specific applications—significantly improving product development efficiency and system stability.

Kinghelm KH-SMAKW-IPEX4-RG1.37-B80 Specification

Summary
Kinghelm’s KH-SMAKW-IPEX4-RG1.37-B80 RF adapter cable is more than just a simple adapter cable—it is a “bridge” connecting SMA devices and IPEX RF modules. Its high-quality RG1.37 cable, precision connectors, flexible length design, and broad application scenarios make it stand out in environments demanding high-efficiency RF transmission. Backed by Kinghelm’s trusted brand and supporting product ecosystem, this cable provides enhanced adaptability and reliability in engineering projects, delivering a more valuable one-stop connection solution for customers.

About Kinghelm

Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples.

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