Abstract:
Abstract: Against the backdrop of rapid growth in the smart home security equipment market, miniaturization, high performance, and stable connectivity have become the core competitiveness of smart camera products. As a leading domestic manufacturer of smart home devices, Hualai Technology encountered technical difficulties in developing a new generation of compact smart cameras due to extremely limited internal space.
Yingshun Communication Technology Co., Ltd., with its profound RF technology accumulation and customized research and development capabilities, has tailored 2.4G&5G dual band WiFi FPCB flexible antennas for it, perfectly solving the core contradiction between product space and antenna performance and size, helping customers smoothly mass produce their products and win market favor.
1、 Customer core pain point: antenna design dilemma under compact structure
The intelligent camera launched by Hualai Technology this time focuses on a simple, compact, and easy to install market positioning. The product body size is compressed to the extreme, and more than ten precision components such as high-definition lenses, image processing chips, WiFi modules, and power management need to be integrated internally, leaving extremely limited installation space for the antenna.
The core design difficulties focus on three aspects:
1.1 Limited space limit: The effective clearance area inside the camera is less than 4cm ³, and traditional PCB antennas, ceramic antennas, or spring antennas cannot adapt to the structure due to their large size. Conventional micro antennas are difficult to meet dual frequency performance requirements.
1.2 Difficulty in balancing dual frequency: The product needs to support both 2.4G (wide coverage, strong wall penetration) and 5G (fast speed, low interference) WiFi frequency bands simultaneously, but the design complexity of dual frequency antennas is higher, making it more difficult to achieve signal balance and stability between the two frequency bands in a very small space.
1.3 Severe internal interference: The metal components inside the camera are dense, and the motherboard circuit, lens module, LED fill light, etc. can all interfere with the RF signal, which can easily lead to signal attenuation, connection lag, video transmission delay, and other problems, affecting the user experience.
If the antenna problem cannot be solved, Hualai Technology's new products will face the risks of performance not meeting standards, extended research and development cycles, and missing the market window period. There is an urgent need for professional miniaturized dual band antenna solutions.
Our R&D team went deep into the customer's production line and conducted precise RF environment analysis on the product structure. Finally, we designed a customized FPCB (Flexible Printed Circuit Board) antenna.
2. Yingshun Communication Solutions:
2.1 Extreme Miniaturization: Utilizing the flexibility of FPCBs, we cleverly positioned the antenna within the gaps of the camera module, perfectly avoiding structural interference issues and reducing its size by 50% compared to traditional antennas. Despite the reduced size, the antenna performance remains uncompromised. Our engineers achieved the following through precise impedance matching and power supply design:
2.4GHz band: VSWR ≤ 1.3, average gain 5dBi, radiation efficiency > 85%;
5GHz band: VSWR ≤ 1.3, average gain 5dBi, radiation efficiency > 85%.
Simultaneously, omnidirectional radiation characteristics are ensured, guaranteeing stable WiFi connectivity for the camera at any installation angle, resulting in smooth, lag-free video transmission.
2.2 Solving Antenna Installation Issues: The FPCB antenna not only possesses flexibility unmatched by other antennas, but also offers significant advantages in installation. We've used 3M strong adhesive on the back of the antenna, ensuring a secure fit against the device casing. This saves space and isolates it from other electronic components, ensuring "antenna clearance" and allowing for better antenna performance.
2.3 Anti-interference optimization：Due to the presence of other electronic components inside the camera, and its frequent use in environments with multiple Wi-Fi devices operating simultaneously, electromagnetic interference may occur to the antenna performance. Therefore, our engineers optimized the antenna for interference resistance. Through grounding optimization, electromagnetic shielding, and precise clearance design, the interference from internal metal components and circuitry is effectively reduced.
In actual testing, the product demonstrated over 40% improved signal stability in complex home environments with multiple obstacles and Wi-Fi devices, achieving a connection distance of up to 18 meters, fully meeting the needs of home security scenarios.
3.Final Results
With the support of Yingsun Communication's customized antenna solution, Hualai Technology's compact smart camera successfully completed R&D, testing, and mass production:
3.1 Performance Fully Meets Standards: Stable dual-band WiFi connection, 50% increase in video transmission rate, and anti-interference capabilities passed rigorous dual verification in both laboratory and user scenarios.
3.2 Perfect Structural Fit: The antenna is completely hidden inside the product, without affecting its compact appearance, maintaining the product's core advantage of concealed installation.
3.3 Excellent Market Performance: After its launch, the product quickly became a best-selling smart home security item thanks to its extremely compact size, high-definition image quality, and stable wireless performance, helping Hualai Technology further consolidate its leading market position.
This collaboration once again demonstrates Inson Communication's profound expertise in the design and manufacturing of miniature antennas. Whether it's space-constrained smart wearable devices or complex industrial IoT terminals, Inson Communication can provide customized, high-performance antenna solutions.
4.About Yingshun Communication Technology Co., Ltd.
Yingshun Communication Technology Co., Ltd. is a high-tech enterprise specializing in the R&D, design, production, and sales of RF antennas. Its core products include FPCB antennas, PCB antennas, drone antennas, LDS antennas, ceramic antennas, RF cables, and RF connectors, widely used in smart homes, IoT, consumer electronics, automotive communications, robotics, and robotic dogs.
The company boasts a professional RF R&D team and advanced anechoic chamber testing equipment, providing one-stop customized services from solution design and sample debugging to mass production, based on customers' product structure, frequency band, and performance requirements. In the future, Yingshun Communication will continue to deepen its expertise in miniaturized and multi-band antenna technologies, helping more customers overcome antenna technology bottlenecks with innovative solutions.
Do you want a custom antenna for your smart device? Contact us! We are a professional antenna design and R&D team.