Medium Power Coaxial Attenuators
Spectrum Control’s ultra-low VSWR (1.1:1) coaxial attenuators deliver industry-leading performance with flatness of ±0.5 dB across the band. These ultra-low VSWR, ultra-flat coaxial attenuators achieve VSWR as low as 1.1:1 and support power handling up to 5 watts, with operational frequencies extending to 50 GHz to meet a wide range of attenuation and power requirements. Operating across MIL and defense temperature ranges of -65°C to +125°C, these rugged, high-performance coaxal attenuators surpass many competing designs in reflection performance, flatness, and thermal stability, with hundreds of coaxial attenuator models to choose from.
To perform effectively in an RF chain, a coaxial attenuator must provide repeatable signal reduction while remaining nearly invisible to the RF signal passing through the circuit. VSWR performance is critical to maintaining a reflection-free signal path. Reflections can distort waveform amplitude and introduce unintended effects such as phase distortion or phase shift, often resulting from poor attenuator VSWR performance. Lower-cost, poorly designed attenuators can create standing waves or attenuation ripple, leading RF designers to troubleshoot nonexistent system issues when the true cause is inadequate attenuator performance.
Reflected power is not simply absorbed within the RF chain; it can travel backward and create additional reflections that push active devices, such as amplifiers, beyond their intended operating limits.
Spectrum Control’s superior VSWR coaxial attenuators help preserve phase linearity and spectral purity, with performance extending up to 50 GHz for demanding high-frequency applications. Ultra-flat attenuation is another critical parameter, ensuring consistent and precise attenuation across frequency. Variations in attenuation can reshape signals, leading to over- or under-modulation, while amplitude ripple combined with group delay variations from poor VSWR can negatively impact radar, communications, and RF modulation systems.
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