功放
DVB-T COFDM TX发射器变速器1W 2W 5W 10W 20W 20W的PA功率放大器
pa功放模块实现射频信号的功率放大输出. 输入电压为12V时, 连接到 COFDM 调制板, 输出功率可达1W (+30dBm的)
特征
- 工作频段: 300兆赫~360兆赫 (更多频率可调)
- 获得: 45D b
- 噘: +33dBm的 (PAR=9.9dB)
- ACPR: < -36分贝
- IP3: +49dBm的
- 噪声系数: 6D b
- 电源电压: 12V, 输出功率 1W (+30dBm的) 发射功率, 功耗约8.7W.
- 射频接口: SMA外螺纹孔
规格
电气规格@ +25℃，ZS = ZL = 50Ω,VCC = 12V
| 范围 | 单元 | 最低限度 | 典型的 | 最大限度 |
| 频率范围 | 兆赫 | 300 | 可选的 | 360 |
| 小信号增益 | D b | 45.0 | ||
| 增益平坦度 dB | D b | +/-0.5 | ||
| 输出功率 Pout@Pin=-15dBm | dBm的 | 30.0 | ||
| IP3 分贝 +49 | dBm的 | 49.0 | ||
| ACPR(WCDMA PAR=9.9dB) | 分贝 | -40 | ||
| 反向隔离 | D b | -45 | ||
| 噪声系数 | D b | 4 | ||
| 效率(Pout=+39dBm@470MHz) | % | 13.8 | ||
| 驻波比输入 | 1.3:1 | |||
| 输出 | 2.0:1 | |||
| 直流电源 | V | 7.4 | 10.0 | 12 |
| 电源电流 (静止的) | 嘛 | 300.0 | ||
| 尺寸 | 35.1毫米 x 18.1 毫米 x 0.6 毫米 |
可选频率
PA1W330 频率 300~360Mhz
PA1W470 频率 450~500Mhz
PA1W550 频率 544~564Mhz
PA1W600 频率 580~620Mhz
PA1W700 频率 680~720Mhz
绝对最大额定值
| 范围 | 绝对最大值 |
| 射频输入功率 | -5.0 dBm的 |
| 电源电压 | +14V |
| 工作温度 | -40℃至+65℃ |
| 贮存温度 | -55℃至+100℃ |
概述
这 用于 COFDM 发射机的 PA 功率放大器模块 旨在为数字视频广播和无线视频传输应用提供稳定、高效的射频功率放大. 该高性能放大器提供高达 +30 dBm的 (1w ^) 标准12V工作电压下, 适合与 COFDM 调制板集成, 无人机下行系统, 便携式视频发射器, 和其他无线通信平台.
与它的 频率覆盖范围广, 可调节设计, 和优化的线性度, 该放大器确保可靠的信号传输、低噪声和出色的频谱纯度. 它特别适合于 DVB-T COFDM 传输系统, 其中保持准确的调制性能和最小的相邻信道干扰至关重要.
该放大器采用紧凑的外形 (35.1 毫米× 18.1 毫米× 0.6 毫米) 带 SMA 射频接口, 可以轻松集成到现有的发射器硬件中. 它还具有强大的保护功能, 确保在苛刻环境下稳定运行, 工作温度范围为 -40℃至+65℃.
可选频段范围为 300 兆赫兹高达 720 兆赫, 该放大器可根据多种行业需求进行定制，包括 公安, 无人机视频下行, 军事侦察, 无线监控, 和工业物联网 申请. 可选版本的输出功率为 1w ^, 2w ^, 5w ^, 10w ^, 和15W, 为不同的部署需求提供可扩展的解决方案.
主要特征
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宽带频率操作:
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支持标准工作频段 300–360 MHz, 具有覆盖 450–720 MHz 的多种可选型号.
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可针对特殊应用进行定制频率调整.
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高增益和输出功率:
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典型小信号增益 45 D b, 确保低输入驱动电平的强大放大.
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交付高达 +30 dBm的 (1w ^) 12V输入下射频输出功率.
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出色的线性度和光谱纯度:
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邻道功率比 (ACPR) < -36 分贝, 确保干净的信号传输，干扰最小.
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三阶截取点 (IP3) 的 +49 dBm的, 支持 COFDM 调制的高线性度.
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低噪音性能:
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噪声系数仅 6 D b, 保持信号清晰度.
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优化效率:
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功耗约 8.7 w ^ 1W输出时, 效率~13.8%.
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袖珍的 & 坚固的设计:
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外形尺寸小: 35.1 毫米× 18.1 毫米× 0.6 毫米.
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SMA RF 接口可实现安全、低损耗连接.
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工作温度范围宽 -40℃至+65℃, 确保恶劣环境下的耐用性.
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灵活的供应范围:
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操作 7.4V 至 12V 直流电源.
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静态电流: 300 嘛 典型的.
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详细规格
电气规格 (+25℃时, ZS = ZL = 50Ω, 电源电压=12V)
| 范围 | 单元 | 最小 | 典型的 | VCAN1321 |
|---|---|---|---|---|
| 频率范围 | 兆赫 | 300 | — | 360 |
| 小信号增益 | D b | — | 45.0 | — |
| 增益平坦度 | D b | — | ±0.5 | — |
| 输出功率 (引脚= -15 dBm的) | dBm的 | — | +30 | — |
| IP3 (三阶截距) | dBm的 | — | +49 | — |
| ACPR (宽带码分多址, PAR=9.9分贝) | 分贝 | — | -40 | — |
| 反向隔离 | D b | — | -45 | — |
| 噪声系数 | D b | — | 4 | — |
| 效率 (@噘嘴= +39 dBm的, 470 兆赫) | % | — | 13.8 | — |
| 输入驻波比 | — | — | 1.3:1 | — |
| 输出驻波比 | — | — | 2.0:1 | — |
| 直流电源电压 | V | 7.4 | 10.0 | 12.0 |
| 电源电流 (静止的) | 嘛 | — | 300 | — |
| 尺寸 | 毫米 | — | 35.1 × 18.1 × 0.6 | — |
绝对最大额定值
| 范围 | 绝对最大值 |
|---|---|
| 射频输入功率 | -5 dBm的 |
| 电源电压 | +14 V |
| 工作温度 | -40℃至+65℃ |
| 贮存温度 | -55℃至+100℃ |
笔记: 超过最大额定值可能会导致永久性损坏. 在高输出功率水平运行时确保适当的散热和稳定的电源调节.
可选频率型号
放大器可以提供在 不同频率配置 根据客户要求:
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PA1W330: 300–360 MHz
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PA1W470: 450–500 MHz
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PA1W550: 544–564兆赫
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PA1W600: 580–620兆赫
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PA1W700: 680–720 MHz
可根据要求开发此范围之外的定制频段.
应用
这 COFDM PA 功率放大器 广泛适用于高线性度的先进射频传输系统, 稳定输出, 和干净的光谱是必不可少的. 典型应用包括:
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无人机无线图传
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实现远距离, 无人机低延迟视频下行链路.
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与基于 COFDM 的数字发射机兼容，实现可靠的非视距传输 (非视距) 视频传送.
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公共安全与执法
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Used in mobile surveillance units, body-worn transmitters, and tactical wireless systems.
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Provides stable communication links in urban and rural deployment scenarios.
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Broadcasting and Media Transmission
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Supports DVB-T/COFDM standard, making it ideal for digital TV uplink and portable transmission setups.
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Military and Defense Applications
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Integrated into reconnaissance systems, remote-controlled unmanned vehicles (UGVs/USVs), and secure communication links.
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Industrial IoT and Wireless Control
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Provides robust long-range connectivity for industrial monitoring and remote control systems.
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Emergency Response and Firefighting
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Ensures reliable video and data transmission during rescue operations in complex terrains.
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Integration Guidelines
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电源: Operate within 7.4–12 V for optimal performance. Ensure supply ripple is minimized to reduce spurious emissions.
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冷却: 在连续高输出功率下运行时使用适当的散热器以保持稳定性.
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射频接口: 始终使用 50Ω 负载端接未使用的 RF 端口，以防止反射和损坏.
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调制: 最适合 DVB-T 等 COFDM 调制方案, 在邻道环境下具有优异的性能.
常见问题解答 (常问问题)
Q1: 这个功放的最大输出功率是多少?
A1: 标准模块提供 +30 dBm的 (1w ^) 12V 电源下的射频功率. 更高功率版本 (2w ^, 5w ^, 10w ^, 和15W) 也可满足扩展范围的要求.
Q2: 该放大器可以在指定频段之外使用吗?
A2: 是, 我们提供 自定义频率调谐 根据要求. 例如, 如果您需要在 800–900 MHz 或其他频段运行, 我们可以相应地重新设计模块.
Q3: 该放大器适合模拟视频传输吗?
A3: 虽然优化了 COFDM数字调制, the amplifier can also be used for analog FM or AM-based video transmitters. 然而, 表现 (linearity, ACPR) is best utilized in digital systems.
第四季度: How does the amplifier handle thermal dissipation?
A4: The module is designed for efficient heat transfer, but when operating at high output levels continuously, it is recommended to mount the module on a heat sink or within a ventilated enclosure.
Q5: Can I power the amplifier directly from a drone’s battery?
A5: 是, the amplifier supports a supply range of 7.4V to 12V, making it compatible with 2S–3S Li-ion/LiPo battery packs typically used in UAVs.
Q6: What kind of connectors are provided?
A6: The amplifier uses SMA male thread hole connectors for RF input and output, ensuring secure and low-loss connections.
Q7: Does the amplifier have built-in protection against overdrive?
A7: Input RF drive should not exceed -5 dBm的 (absolute max). It is strongly recommended to limit input power and avoid overdrive conditions. External protection circuits can be added if necessary.
Q8: What is the difference between the 1W, 2w ^, 5w ^, 10w ^, and 15W versions?
A8: The differences lie mainly in the power amplification stage. Higher power versions require additional thermal management and may have slightly larger form factors, but all share the same integration concept.
Q9: Can this amplifier work with OFDM-based communication systems other than DVB-T?
A9: 是. It is suitable for any OFDM/COFDM system, including LTE, custom digital video, and wireless data transmission schemes, provided the operating frequency is matched.
Q10: What industries are currently using this module?
A10: Our amplifiers are widely used in public security, firefighting, UAV video transmission, defense reconnaissance, 广播, 和工业物联网 fields.
结论
这 PA Power Amplifier COFDM module is a robust, high-performance RF amplifier optimized for modern digital wireless transmission needs. 它是 high linearity, low noise figure, wide frequency coverage, and optional scalable power outputs make it a versatile choice for UAVs, 广播, 防御, and emergency communication systems.
Whether deployed in 1W lightweight UAV payloads or scaled up to 15W ground-based transmitters, the amplifier ensures reliable, 高效的, and secure transmission of COFDM signals across diverse environments.
isdb-t.com_buyer –
This PA Power Amplifier has completely transformed my DVB-T/COFDM transmission setup! I opted for the 10W version, and the boost in signal strength and clarity is nothing short of remarkable. The installation was straightforward, and the build quality feels exceptionally robust. I’ve noticed a dramatic improvement in my transmission range and signal penetration, especially in challenging environments where I previously experienced dropouts. The amplifier operates with impressive efficiency, remaining stable and relatively cool even during extended use. It has added a professional level of reliability and performance to my broadcasts that I was missing before. For anyone serious about enhancing their wireless video transmission system, this amplifier is an outstanding investment and delivers exceptional value for its price. Highly recommended for achieving consistent, high-quality results!