COFDM Linear Power Amplifier for Wireless Video Transmission
该 COFDM Linear Power Amplifier is a high-performance RF amplification module designed for professional wireless video transmission systems. It is optimized for COFDM图传 / OFDM modulation signals, ensuring low distortion, high linearity, and stable long-range transmission performance.
This amplifier is widely used in UAV video links, drone systems, vehicle-mounted transmission, 监控系统, and industrial wireless communication systems.
We support full 代加工 / ODM customization, 包括频段, 输出功率, interface type, and mechanical design.
目录
主要特点
- High linearity design optimized for COFDM / 正交频分复用信号
- Wide frequency range: 300 兆赫至 5.8 千兆赫 (可定制)
- Output power up to 100W (取决于型号)
- Low distortion RF amplification for stable video transmission
- 内置保护: overheat, 驻波比, and over-current protection
- Industrial-grade reliability for harsh environments
- 代加工 / ODM customization available
- Compact and integration-friendly design
Frequency Options
Available frequency bands:
- 300–320 MHz
- 350–390 MHz
- 400–470 MHz (most popular)
- 500–600 MHz
- 600–700 MHz
- 800–900 MHz
- 1.2 千兆赫
- 1.3 千兆赫
- 2.4 千兆赫
- 5.8 千兆赫
Custom frequency bands are available upon request for OEM projects.
| 类别 | 选项 | Available Range / Choices | 笔记 |
|---|---|---|---|
| 频带 | 工作频率 | 300–320 MHz / 350–390 MHz / 400–470 MHz / 500–600 MHz / 600–700 MHz / 800–900 MHz / 1.2 千兆赫 / 1.3 千兆赫 / 2.4 千兆赫 / 5.8 千兆赫 | Custom frequency available |
| Bandwidth Type | Narrowband / Wideband / Custom band | Depends on system design | |
| 射频输出功率 | 功率等级 | 1W¯¯ / 2W¯¯ / 5W¯¯ / 10W¯¯ / 20W¯¯ / 40W¯¯ / 50W¯¯ / 100W¯¯ | Higher power requires enhanced cooling |
| Power Stability | ±0.5 dB / ±1分贝 | OEM adjustable | |
| Signal Type Optimization | Linearity Mode | 标准 / 高线性度 / Ultra Linear | Optimized for COFDM/OFDM |
| DPD Support | 选修的 / Available in high-end models | Digital Pre-Distortion | |
| 射频接口 | 输入 / 输出连接器 | SMA / N型 / 跨国公司 / MCX / MMCX | 默认: SMA |
| 阻抗 | 50Ω standard | Industry standard | |
| 控制接口 | Power Control | TTL ON/OFF / 串口 / 通用输入输出接口 / I2C (风俗) | Remote control optional |
| Power Adjustment | 固定的 / 可调节的 / Remote tuning | OEM firmware option | |
| 电源 | 输入电压 | 直流5V / 9–12V / 12–24V / 24-28V / 9–36V wide input | Depends on power level |
| 保护 | Reverse polarity / 过电压 | Standard built-in protection | |
| Cooling System | 冷却方式 | Passive heatsink / Active fan / Industrial enclosure / Waterproof cooling | Depends on power |
| 热设计 | 标准 / Enhanced / Military-grade | For high-power models | |
| 机械设计 | 外壳类型 | PCB only / Aluminum case / Shielded metal box / Ruggedized housing | OEM customizable |
| 尺寸 | 标准 / 袖珍的 / 超紧凑 | UAV version available | |
| Weight Optimization | 标准 / Lightweight UAV version | 选修的 | |
| Protection Functions | RF Protection | VSWR protection / Overheat protection / 过流保护 | Standard in all models |
| 监控 | 接收信号强度指数 / Power detection / Temperature monitoring | Optional telemetry | |
| 系统集成 | Compatible Systems | COFDM发射器 / SDR systems / IP编码器 / HDMI / CVBS systems | Multi-system support |
| 安装类型 | 无人机 / 车辆 / Fixed station / 便携的 | Application-based design | |
| Environmental Specs | 工作温度 | -20°C 至 +70°C / Industrial -40°C optional | Depends on design |
| 防水等级 | 没有任何 / IP54 / IP65 / IP67级 | Optional rugged version | |
| OEM/ODM服务 | 品牌推广 | 标志印刷 / 标签 / Custom enclosure | Full OEM support |
| 固件 | Custom control firmware / protocol adaptation | 可用的 | |
| RF Design | Custom frequency plan / gain structure | Engineering required | |
| 生产 | Prototype / Small batch / 量产 | MOQ supported |
输出功率选项
Choose the appropriate power level based on transmission distance requirements:
- 1W¯¯
- 2W¯¯
- 5W¯¯
- 10W¯¯
- 20W¯¯
- 40W¯¯
- 50W¯¯
- 100W¯¯ (requires enhanced thermal design)
Higher power models include reinforced heat dissipation and protection circuits for continuous operation.
技术优势
1. Optimized for COFDM Systems
Unlike standard RF amplifiers, this module is specifically designed for COFDM modulation, ensuring minimal signal distortion and improved BER performance.
2. High Linearity Performance
Maintains signal integrity even under high power operation, making it ideal for high-quality video transmission.
3. 稳定的远距离传输
Supports stable RF output for long-distance wireless video links in complex environments.
4. 工业可靠性
Designed for UAV, 车辆, and field deployment with strong anti-interference capability.
接口选项
射频输入 / 输出
- SMA (默认)
- N型
- 跨国公司
- MMCX / MCX (紧凑的设计)
控制接口
- TTL power control
- UART serial control
- GPIO trigger
- Custom digital control interface (OEM available)
电源选项
- 直流5V
- DC 9–12V
- 直流12-24V (standard industrial version)
- DC 24–28V (high power models)
- Wide voltage input (9–36V optional)
Cooling Options
- Passive heatsink cooling (low power models)
- Aluminum heatsink design
- Active fan cooling system
- Industrial-grade metal enclosure with thermal pad
- Waterproof cooling structure (IP65/IP67 optional)
应用领域
This COFDM power amplifier is widely used in:
- 无人机 / Drone video transmission systems
- Wireless surveillance systems
- Vehicle-mounted video links
- Military and security communication systems
- Industrial wireless data transmission
- Long-range COFDM video links
代加工 / ODM Customization Services
We support full customization for professional RF integration projects:
- Custom frequency design
- Custom output power levels
- PCB size and structure customization
- OEM branding (标识, label, 外壳)
- Integration with COFDM transmitters
- Custom firmware and control logic
- Private RF system development
质量 & 可靠性
All modules are manufactured with industrial-grade components and tested under strict RF performance standards to ensure:
- Stable long-term operation
- Low signal distortion
- High thermal reliability
- 抗干扰能力强
Why Choose Our COFDM Power Amplifier?
- Specialized design for COFDM video systems
- Wide frequency and power customization
- Proven performance in UAV and industrial applications
- Strong OEM/ODM engineering support
- Fast prototyping and mass production capability
常问问题
Q1: Is this amplifier compatible with all COFDM systems?
是, it is designed to work with most COFDM and OFDM-based wireless video transmission systems.
Q2: Can I customize frequency and power?
是, both frequency and output power can be fully customized according to your project requirements.
Q3: Is it suitable for drone applications?
是, lightweight and high-efficiency versions are available specifically for UAV systems.
第四季度: Do you provide OEM branding?
是, we support logo printing, 外壳定制, and private labeling.
Order Information
For OEM orders or custom specifications, please contact our engineering team with your requirements:
- 频带
- 输出功率
- Application scenario
- Quantity requirement
We will provide a tailored RF solution and quotation.
Customer Application Case
We provide customized COFDM linear power amplifier solutions for professional wireless video transmission systems. Below is a typical UAV project example demonstrating real-world performance and integration capability.
20 Watts PA 3800-3900MHz (3850+-50MHz 3.8-3.9GHz)
