3KV High-Voltage DC Blocks, 0.05-8GHz

A 3KV high-voltage DC block is a key passive component used in high-frequency circuits, capable of blocking DC or low-frequency components while transmitting high-frequency signals, and withstanding DC voltages up to 3000 volts. Its core function is to "isolate direct current" - allowing AC signals (such as RF and microwave signals) to pass through through through the principle of capacitive coupling, while preventing DC components or low-frequency interference, thereby protecting backend sensitive equipment (such as amplifiers, antenna systems, etc.) from high-voltage DC damage. The following briefly introduces its characteristics and applications:

Characteristics:

1. Ultra wideband coverage: Supports a frequency range of 0.05-8GHz, compatible with multi band applications from low-frequency RF to microwave, meeting complex signal transmission requirements.
2. High voltage isolation capability: Can withstand 3000V DC voltage, effectively block high-voltage interference, and protect precision electronic equipment from the risk of breakdown.
3. Low insertion loss: The insertion loss within the passband is less than 0.5dB, ensuring almost lossless transmission efficiency of high-frequency signals.
4. High stability: Using ceramic media and special electrode materials, with good temperature stability, suitable for extreme environments.

Applications:

1. Defense and radar systems: Isolate high-voltage bias power supply and RF signal chain in phased array radar to enhance system reliability.
2. Satellite communication: To prevent signal distortion caused by high-voltage electrostatic discharge (ESD) of onboard equipment.
3. Medical electronics: Used for signal isolation of high-precision medical imaging equipment (such as MRI) to avoid DC drift interference.
4. High energy physics experiment: Protecting monitoring instruments from high-voltage pulses in particle accelerators and other devices.

Qualwave Inc. provide standard and high-voltage DC blocks with a working frequency of up to 110GHz, widely used in multiple fields. This article introduces a 3KV high-voltage DC block with a working frequency of 0.05-8GHz.