The DC power injector for radio devices in the 10 MHz - 6 GHz range via coaxial cable is an important component for powering various radio frequency devices. Its application covers broadband amplifiers, especially those without a built-in DC blocking capacitor, where external power is necessary. This injector is also used in fiber optic communications to power laser drivers, where the laser diode excitation current is supplied via a separate DC port, and the communication signal is input via the RF output.
The operating principle of this coaxial DC power injector is to separate the DC power supply and the high-frequency signal, which avoids the negative impact of parasitic capacitance parameters on the performance of broadband amplifiers. The device is based on ultra-wideband high-frequency inductors and capacitors that have no resonant points. The DC blocking capacitor prevents DC voltage leakage into subsequent circuits or measuring equipment, and high-frequency inductors isolate AC information, preventing high-frequency signals from penetrating the power supply system.
Key features of the power injector for radio devices
| Characteristic | Value |
|---|---|
| Operating frequencies | 10 MHz - 6 GHz |
| Losses | 0.5 dB at 3 GHz |
| 1.2 dB at 6 GHz | |
| Withstand voltage | DC 50 V |
| Limit current | 200 mA |
| RF port | SMA female |
| DC bias port | Red and black silicone wire |
| RF and DC port | SMA female |
Advantages of the power injector for radio devices in the 10 MHz - 6 GHz range
One of the key advantages of the 10 MHz 6 GHz power injector is its ability to provide stable power via coaxial cable without degrading high-frequency signal characteristics. The use of ultra-wideband components allows operation in a wide frequency range from 10 MHz to 6 GHz with minimal losses. The presence of a DC blocking capacitor and high-frequency inductors ensures effective isolation between the power and signal transmission circuits, which increases the reliability and longevity of connected devices.
Features of power supply to radio devices
The main feature of this device is the ability to supply DC power to radio devices via the same coaxial cable that transmits the high-frequency signal. This significantly simplifies connection and reduces the number of necessary cables, especially in complex RF systems. The injector has three ports: RF for connecting the radio frequency signal, DC bias for connecting the DC power source, and RF+DC, which combines both signals for delivery to the device.
Useful functions
- DC blocking
- Isolation of high-frequency signal from the power circuit
- Wide operating frequency range
- Low signal loss
Compatibility with broadband amplifiers and laser drivers
The power injector demonstrates high compatibility with various broadband amplifiers, especially those requiring external DC power. It is also ideal for use in fiber optic communication systems to power laser diode drivers, providing the necessary excitation current through a separate port.
Package contents
The power injector for radio devices includes:
- Power injector - 1 pc.
Packaging
The power injector is supplied in individual anti-static packaging, providing protection against electrostatic discharge during transportation and storage.
If you need to provide reliable power to radio devices in a wide frequency range without signal quality loss, this power injector will be an indispensable assistant. Its versatility and high technical characteristics make it an ideal solution for various applications. We recommend purchasing this high-quality and effective device to optimize your radio frequency systems.
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