MFC 21000B-3900/4200

The 21000B-3900/4200 is a high-performance C-band bandpass filter designed to protect satellite downlinks from out-of-band and adjacent-band interference. Featuring a 3900–4200 MHz passband, it provides exceptional rejection performance—up to 90 dB below 3700 MHz and above 4400 MHz—while maintaining low insertion loss. With IP67 weatherproofing, tight roll-off characteristics, and robust mechanical construction, this filter is ideal for harsh outdoor SATCOM environments facing 5G, WiMAX, or terrestrial RF noise.

Key Features:

• Passband: 3900–4200 MHz
• Stopband Rejection:

• 90 dB below 3700 MHz
• 63 dB @ 3800 MHz
• 45 dB @ 3845 MHz
• 38 dB typ @ >4255 MHz
• 90 dB above 4400 MHz

• Insertion Loss: 0.4–0.7 dB typ
• VSWR: ≤1.22:1
• Group Delay: ≤1.0 ns
• Outdoor Rated: IP67 enclosure
• Application: 5G and high-frequency interference suppression