As the Internet of Things (IoT), vehicle communication systems, and industrial automation continue to advance, the demand for reliable 4G connectivity grows. Addressing these needs, the Kinghelm KH-04-SMAJ-H190 high-performance 4G flat black antenna offers a robust solution, combining advanced design and superior performance for various applications.

Kinghelm KH-04-SMAJ-H190 Product Image

Product Overview: Stability Meets Efficiency

The Kinghelm KH-04-SMAJ-H190 is a sleek, flat black antenna specifically designed for 4G communication. With an SMA male connector and a length of 190 mm, this antenna ensures efficient signal transmission across a wide range of frequencies. Its compact form factor makes it an excellent choice for space-constrained applications, while its durable design enhances reliability.

Key Features: Superior Performance and Design

1. Wide Frequency Range and High Gain
The KH-04-SMAJ-H190 4G antenna supports a frequency range of 700~960 MHz and 1710~2690 MHz, covering essential 4G bands for seamless connectivity. It offers:

lGain of 1.0dBi ± 0.5 (700~960 MHz)

lGain of 2.0dBi ± 0.5 (1710~2690 MHz)

2. Low Voltage Standing Wave Ratio (VSWR)
The low VSWR (≤3.0 @ 700~960 MHz, ≤2.5 @ 1710~2690 MHz) minimizes signal reflection and power loss, ensuring stable and efficient signal transmission.

3. Advanced Polarization and Interference Resistance
With vertical polarization and a return loss of -6.0 dB max at 1710~2690 MHz, the antenna exhibits excellent resistance to interference, even in challenging environments.

4. Compact and Durable Design
The flat, compact design of the KH-04-SMAJ-H190 ensures easy integration into various devices, while its high-quality materials guarantee durability and long-term reliability.

Applications: Versatile Connectivity

The KH-04-SMAJ-H190 4G antenna excels in a wide range of applications, including:

lIoT Devices: Ensuring reliable data transmission in smart homes and sensor networks.

lVehicle Communication: Supporting robust signal transmission for in-car connectivity systems.

lRemote Monitoring: Enhancing signal reliability in security and industrial monitoring setups.

lIndustrial Automation: Facilitating stable wireless communication in automated systems.

Technical Insights: A Modern 4G Antenna

The success of Kinghelm KH-04-SMAJ-H190 4G antenna lies in its engineering precision. Its 50Ω impedance optimizes signal matching with communication devices, while its vertical polarization design enhances signal reception and transmission efficiency. The carefully controlled gain and low VSWR provide consistent performance across all supported frequency bands, ensuring a reliable 4G experience.

Kinghelm KH-04-SMAJ-H190 Specification

Conclusion: The Ideal 4G Antenna Solution

The Kinghelm KH-04-SMAJ-H190 is more than just a 4G antenna—it’s a powerhouse of stability, efficiency, and adaptability. Designed for modern communication demands, it offers robust signal transmission, excellent interference resistance, and compatibility with diverse applications. Whether for IoT, automotive, or industrial use, this antenna stands out as a trusted solution for reliable 4G connectivity in today’s fast-evolving technological landscape.

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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