Custom RF Filter Solutions for Global UAV/ counter-UAV Projects

RF filters serve as core RF components for UAV and counter-UAV equipment. They eliminate motor clutter, adjacent channel interference and harmonic crosstalk, stabilize remote control, video transmission and GPS signals, and improve detection accuracy of countermeasure devices. They cover mainstream frequency bands including 433MHz, 900MHz, GPS L1, 2.4GHz and 5.8GHz.

APEX has developed a range of high-performance cavity filters targeting the two core communication links of UAV: remote control and HD video transmission. Below is a detailed introduction to our two flagship standard products.

1. Cavity Bandpass Filter

Precisely matched to the mainstream 433MHz remote control band of commercial drones, it acts as the core filtering module for fixed counter-UAV detection stations.

>The metal housing delivers outstanding shielding and anti-interference performance, enabling stable long-distance operation and suitable for outdoor deployment.
>Fixed low-altitude security detection equipment deployed at airports, factories and industrial parks. It filters out high-power blocking signals from surrounding 4G/5G and WiFi networks, clearly captures long-range drone remote control signals and reduces false alarms.

2. Dual-Band Cavity Filter

Custom-designed for the 5.8GHz HD video transmission band of drones, it covers mainstream spectrum used by aerial photography UAVs and supports high-power counter-UAV jamming transmitters.

>Adopts an elongated multi-resonator tuning structure with high-Q resonant design and superior shielding performance. It suppresses harmonic leakage from power amplifiers and prevents interference to nearby civilian WiFi and wireless surveillance devices.
>Vehicle-mounted mobile counter-UAV jammers and low-altitude management systems for large venues and examination halls. It purifies the 5.8GHz transmitting spectrum and accurately cuts off the HD video transmission links of drones.

APEX boasts mature RF R&D capabilities and has delivered over a hundred sets of supporting filter projects for counter-UAV systems at airports, border ports, industrial parks and examination venues, accumulating rich practical experience in multi-scenario implementation.

Besides standard filters, we provide ODM/OEM customization services. Tailored RF filtering solutions can be developed according to site conditions, equipment power and frequency band requirements to serve clients across the global public security industry.