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Low-Pass Filters

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Low-pass filters (LPFs) are designed to pass signals below a certain frequency cut-off point, while rejecting signals above that. CTS low-pass filter solutions come in shape of the Rooftop series (RLF), offering very small size, low insertion loss and significant close-in rejection/attenuation. The RLF product family comes with options for passband and stopband range and is characterized by a shared, universal footprint, allowing any frequency version to be added onto a PCB layout without requiring further modifications.  


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CTS low pass filter block

  • Low Loss with Very Close-In Rejection
  • Supports CMB, CMD, UMD and Other Duplexers / BPFs
  • Provides >45 dB Rejection up to >6.0 GHz and >10 dB to 12.75 GHz
  • Support for 2nd and 3rd Harmonic Suppression
  • Common PCB Footprint across All Products in RLF Family
  • Digital-to-Analogue Converters (DACs)
  • Antenna Systems
  • RF Amplifiers
  • Satellite Communication
  • Other Wireless Infrastructure Applications
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RF Filters - Duplexer Brochure

CTS RF Filters - Duplexer Brochure

CTS’ ceramic duplexers are well-suited for use in indoor and outdoor small cells as well as distributed antenna systems (DAS), active antenna systems (AAS), remote radio heads and other wireless infrastructure systems

Brochures / Catalogs

CTS Diplexers with Antispoof/Antijam Capabilities - Tech Brief

Application Note / Tech Brief

CTS Advanced Materials Solutions (AMS) - Product Brochure thumbnail

Brochures / Catalogs, Corporate Documents

CTS Ceramic Monoblock Surface Mounting

Application Note / Tech Brief


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Passband Frequency Range



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