RF LC Filter

The LC filter of DwaveTech provides low insertion loss and excellent skirt specification. We offer wideband products from 10MHz to 8GHz using lumped element or 50ohm stripline. Our products provide Low Pass Filter, High Pass Filter, Duplexer, Triplexer, Multiplexer and are manufactured to withstand high temperature and power. In addition, it is developed in various forms such as PCB or Connector type and provides the type of customer’s desired.

👉 Custom Designs Avaliable(Chip or Stripline Type)
👉Peak Temperature(-30 ~ +75°C)
👉Low Insertion Loss, Superior attenuation, High Peak Power(50W)
👉 WLL, UMTS, PCS Repeater System, Wimax/Wibro System
👉ROHS Compliant

📦 Common LC Filter Configurations:

🔹 Low-Pass LC Filter

  • Allows frequencies below a cutoff to pass

  • Blocks high-frequency noise and harmonics

  • Common in power amplifiers and audio/RF circuits

🔹 High-Pass LC Filter

  • Passes frequencies above a cutoff

  • Useful for removing DC offsets and low-frequency noise

🔹 Bandpass LC Filter

  • Passes only a narrow frequency band

  • Used in channel selection, radios, and receivers

🔹 Bandstop (Notch) LC Filter

  • Blocks a narrow band of unwanted frequencies

  • Ideal for interference rejection

✅ Key Features:

  • Operating Frequency: From a few kHz up to 1–2 GHz (higher in some designs)

  • Impedance: Typically 50 Ohm or 75 Ohm

  • Types: Low-pass, high-pass, bandpass, bandstop (notch)

  • Tunable Designs: Easily adjustable for different frequency bands

  • Compact Size: Can be made into discrete or integrated (SMD) formats

  • Customizable Bandwidth: Based on component values

🔧 Advantages:

  • Simple and cost-effective

  • Tunable with variable capacitors or inductors

  • Easy to integrate into both PCB and module-level designs

  • Low insertion loss when designed correctly

  • Works well at low to mid RF frequencies

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