Ku-band Low-Pass Waveguide Filter (WR75) is a precision-engineered RF filtering module designed to suppress out-of-range interference, reject unwanted high-frequency components, and enhance overall signal purity in satellite communication and microwave front-end systems. Based on a Chebyshev/Batervord filter characteristic, this waveguide LPF delivers sharp roll-off performance, stable in-band response, and high out-of-band rejection, making it ideal for uplink and downlink RF chains, RRL systems, and protected front-end architectures.
Featuring a 12.75 GHz cutoff frequency, UBR120 and PBR120 flange compatibility, and robust aluminium alloy construction, the Ku-band Low-Pass Waveguide Filter (WR75) provides excellent mechanical durability and electrical stability across Ku-band environments. With passband ripple not exceeding ±0.5 dB, insertion loss ≤1 dB, and rejection ≥45 dB at 100 MHz offset, this LPF ensures clean RF propagation while minimizing distortion, ripple, and signal fluctuations.
✅ High-performance low-pass filtering for Ku-band RF systems
The Ku-band Low-Pass Waveguide Filter (WR75) is engineered to eliminate out-of-range spectral components, delivering a clean and stable passband with minimal ripple. By reducing short-term fluctuations and ambient interference, it improves modulation accuracy and overall microwave link quality.
✅ Sharp 12.75 GHz cutoff with 45 dB rejection at 100 MHz
The Chebyshev/Batervord design provides steep roll-off characteristics, suppressing spurious emissions and unwanted harmonics. This ensures strong out-of-band rejection, protects sensitive receiver modules, and reduces system-level intermodulation.
✅ Stable WR75 interface with UBR120/PBR120 flange compatibility
The Ku-band Low-Pass Waveguide Filter (WR75) integrates seamlessly into WR75 waveguide paths, offering precise impedance control and consistent performance. Standardized flange types ensure compatibility with feed assemblies, satellite terminals, and professional microwave networks.
🛠️ Engineered for precision waveguide filtering applications Machined from high-grade aluminium alloy, the Ku-band Low-Pass Waveguide Filter (WR75) ensures thermal stability, mechanical rigidity, and repeatable electrical characteristics. Its low VSWR (≤1.5) and ≤1 dB insertion loss confirm reliable operation across a broad range of Ku-band RF chains.
🛒 Essential RF protection for satellite and microwave systems The Ku-band Low-Pass Waveguide Filter (WR75) improves receiver protection, reduces noise ingress, and enhances link performance in ground stations, broadcast uplinks, telemetry systems, and high-frequency RF installations.
📌 Key features
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Ku-band waveguide low-pass filter with sharp roll-off
Featuring a 12.75 GHz cutoff and Chebyshev/Batervord characteristic, the Ku-band Low-Pass Waveguide Filter (WR75) provides steep attenuation of unwanted upper-spectrum components. This design ensures stable performance in high-frequency satellite communication systems where spectral purity is essential.
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Low insertion loss ≤1 dB for high-efficiency signal transfer
The Ku-band Low-Pass Waveguide Filter (WR75) maintains excellent passband performance with minimal degradation, preserving link quality across demanding Ku-band microwave paths. Its aluminium cavity construction ensures low-loss propagation and stable amplitude characteristics.
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±0.5 dB passband ripple and VSWR ≤1.5 for flat in-band response
The controlled ripple ensures uniform transmission across the passband, supporting complex modulation formats and high-data-rate communication. Low VSWR improves impedance match and reduces reflected power.
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≥45 dB rejection at 100 MHz from band edge
This high rejection level ensures suppression of unwanted signals, harmonics, and broadband environmental noise. It provides effective out-of-band protection for sensitive RF front ends and receiver chains.
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Durable aluminium waveguide housing with WR75, UBR120, and PBR120 interfaces
The mechanically robust aluminium body delivers long-term reliability in satellite terminals and outdoor RF systems. Standardized flanges guarantee compatibility with a wide range of Ku-band components.
⚙️ Main functions
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Low-pass filtering for suppression of out-of-band interference
The Ku-band Low-Pass Waveguide Filter (WR75) blocks high-frequency noise and harmonics beyond the 12.75 GHz threshold, improving signal-to-noise ratio and protecting downstream components. This ensures stable operation in complex microwave systems.
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Stabilization of passband amplitude for clean RF propagation
With ±0.5 dB ripple and ≤1 dB insertion loss, the Ku-band Low-Pass Waveguide Filter (WR75) maintains steady amplitude-frequency characteristics. This reliability enhances link performance in modulation-sensitive Ku-band communication channels.
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Reduction of short-term signal fluctuations and ambient RF noise
The filtering response smooths out transient variations and suppresses external noise, improving modulation accuracy and overall system stability. It is suitable for precise satellite communication and telemetry applications.
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Integration into WR75 waveguide networks with minimal reflection
The low VSWR design reduces return loss, ensuring efficient impedance matching. This supports high-quality transmission across satellite front ends and microwave RF chains.
🧩 Applications
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Satellite communication and VSAT ground stations
The Ku-band Low-Pass Waveguide Filter (WR75) enhances RF signal purity in satellite uplink and downlink chains by eliminating out-of-band components and high-frequency interference. Its high rejection and low insertion loss make it essential for protecting sensitive LNB and modem inputs in professional Ku-band terminals.
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Microwave relay links and broadband RF transport paths
The filter stabilizes long-distance microwave communication links by suppressing unwanted harmonics and reducing system noise. Its predictable frequency response improves modulation integrity and ensures reliable transmission in high-capacity backhaul and relay networks.
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Antenna feed assemblies and front-end filtering modules
Integrated into WR75 feed structures, the Ku-band Low-Pass Waveguide Filter (WR75) provides precise out-of-band attenuation and maintains clean passband characteristics for feedhorn, diplexer, and waveguide-based front ends. This ensures consistent RF behavior and optimal performance of antenna systems in harsh operational environments.
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Laboratory RF measurement, calibration, and EMC-sensitive installations
Thanks to its flat passband response and ≥45 dB rejection, the Ku-band Low-Pass Waveguide Filter (WR75) is suitable for precision measurement setups and electromagnetic compatibility research. It provides a controllable, stable filtering environment for testing instruments, calibration benches, and experimental microwave devices.
💡 Why you should buy from us❓
- 1.5 years warranty
- 7 years after-sales support
- Remote support team of engineers
- Discount program for regular customers 🎁
💬 Contact Us
For additional details or assistance regarding the Ku-band Low-Pass Waveguide Filter (WR75), feel free to contact our team. We provide professional consultation and aftersales support to help with installation and setup, ensuring you get the most out of your equipment.
