Our core advantages:
1. Smaller size and lighter weight achieved through the use of high dielectric constant materials
2. Excellent temperature stability
3. Frequency range: 400MHz-7000MHz
4. Customizable products for customers
5. Strong simulation design capabilities, enabling quick response to customer needs
Microwave Dielectric Ceramic Filter Product Introduction:
Microwave dielectric filters are passive RF devices manufactured using high dielectric constant, low loss, and temperature-stable microwave dielectric ceramics as the core resonant material, through resonant cavity coupling design. Their core function is to accurately filter signals in the microwave frequency band, providing low-loss signal transmission within the passband and efficient suppression of out-of-band noise. They are one of the core components of RF front-end systems.
Microwave dielectric ceramic filters are widely used in: 5G/5G-A base stations, satellite communications, radar, T/R modules, Wi-Fi 6/routers, repeaters, and other RF front-end applications


Technical parameters
| Part Number | Center Frequency | Bandwidth | Insertion Loss | Ripple | VSWR | Attenuation | Size | Applications |
| (MHz) | (MHz)min | (dB)max | (dB)max | max | (dB)min(MHz) | W*H*L(mm) | ||
| RAF4A409F07KCA | 409 | 7 | 3.0 | 0.8 | 1.7 | 30@fo+13.5 | 26*24*7.5 | WLL |
| RAF3A813F15DCC | 813.5 | 15 | 2.6 | 1.0 | 2.0 | 12@fo±27.5 | 10*14*4.5 | TRS |
| RAF6A830F10KCA | 830 | 10 | 4.0 | 0.5 | 1.5 | 60@fo±50 | 38*18.5*7.5 | C-CDMA |
| RAF3A830S10KCA | 830 | 10 | 1.5 | 0.3 | 1.5 | 30@fo±50 | 20.5*15*7.5 | CHINA CDMA |
| RMF3A830S10FCA | 830 | 10 | 3.5 | 1.0 | 2.0 | 28@fo±40 | 12*9*4 | CHINA CDMA |
| RAF4A836S25DCA | 836 | 25 | 3.0 | 0.6 | 1.5 | 20@fo+32.5 | 13*16*4.5 | KOREA CDMA |
| RAF4A881S25DCA | 881 | 25 | 3.0 | 0.6 | 1.5 | 20@fo-32.5 | 13*16*4.5 | KOREA CDMA |
| RMF6A897F40PCA | 897.5 | 40 | 2.5 | 1.0 | 1.5 | 12@fo-27.5 | 40*9*11 | GSM |
| RAF3A902S25DCA | 902.5 | 25 | 2.5 | 1.0 | 1.7 | 12@fo±32.5 | 10*14*4.5 | GSM |
| RAF5B902F25HCA | 902.5 | 25 | 3.0 | 1.0 | 1.5 | 38@fo+32.5 | 26*16*6.5 | GSM |
| RAF9A990F06KCA | 990 | 6 | 12.0 | 2.0 | 1.5 | 50@fo±10 | 56*20*7.5 | NARROW BAND |
| RAF5A1100F400HCA | 1100 | 400 | 1.5 | 1.0 | 1.8 | 40@fo-400 | 26*14*6.5 | WIDE BAND |
| RAF7A1227F30KCA | 1227 | 30 | 4.5 | 1.0 | 1.5 | 30@fo±30 | 44*8*16 | GPS/BDS |
| RMP6A1227F20HCA | 1227 | 20 | 3.5 | 1.0 | 1.5 | 20@fo±30 | 22*11*6.5 | GPS/BDS |
| RAF1237F575KCA | 1237 | 575 | 2.0 | 0.5 | 1.5 | 10@fo-337.5 | 38*18.5*7.5 | WIDE BAND |
| RMP4A1575S10FCA | 1575 | 10 | 3.0 | 1.0 | 1.5 | 30@fo±45 | 13*12*5 | GPS |
| RMF3A1575F04DCA | 1575 | 4 | 3.0 | 1.0 | 1.7 | 28@fo±50 | 7*7.5*3 | GPS |
| RMF3A1747S75BCA | 1747 | 75 | 3.0 | 1.0 | 1.8 | 25@fo+132.5 | 5.7*4.4*2 | DCS |
| RAF6A1747F75KCA | 1747 | 75 | 3.5 | 2.0 | 1.5 | 25@fo±57.5 | 38*16*8 | DCS |
| RAF5B1880F60KCA | 1880 | 60 | 3.5 | 1.5 | 1.5 | 30@fo+50 | 32*17*7.5 | US-PCS |
| RMF4A1900S40DCA | 1900 | 40 | 3.0 | 1.0 | 1.8 | 30@fo±250 | 11.4*6*3.2 | WCDMA |
| RAF4A1950S60DCA | 1950 | 60 | 3.0 | 1.0 | 1.5 | 35@fo+160 | 13.5*12.5*4.5 | IMT-2000 |
| RMP8C2140F160HCA | 2140 | 160 | 3.0 | 1.0 | 1.5 | 45@(1920~2010) | 33.4*11.5*6.2 | W-CDMA |
| RMF3B2350F120DCB | 2350 | 120 | 2.6 | 1.0 | 1.5 | 23@(2460~2560) | 6.7*3*4.8 | TD-LTE |
| RAF3A2494S20DCA | 2492 | 20 | 0.6 | 0.3 | 2.0 | 60@1620 | 10*10*3.8 | BDS |
| RAF8A2500F500BCA | 2500 | 500 | 2.5 | 1.0 | 1.5 | 45@fo±600 | 18*10*3 | LTE |
| RMF3A2550F140DCA | 2550 | 140 | 2.0 | 1.0 | 1.5 | 30@(DC~2280) | 6.7*5*3 | WIMAX |
| RMC4A3420S40FCA | 3420 | 40 | 2.5 | 0.5 | 1.5 | 35@fo±100 | 15*5.7*4.5 | MIMDS |
| RMC4A3490F20HCC | 3490 | 20 | 2.0 | 1.0 | 1.5 | 45@fo-70 | 12*7.2*5.4 | IOT |
| RMF4A3500S200HCB | 3500 | 200 | 2.0 | 1.0 | 1.5 | 50@fo±300 | 11.5*6*5 | 5G |
| RMC6A4695S590HCA | 4695 | 590 | 2.6 | 1.0 | 1.5 | 40@fo±800 | 11*5.2*5.2 | 5G |
| RMP4A7200S10FCA | 7200 | 10 | 3.0 | 1.0 | 1.5 | 30@(5000~6200) | 13*2*5 | SATE-COMM |
Other frequencies of microwave dielectric ceramic filters can be customized. Here, only some products are displayed for reference. If the product you are looking for is not listed in this table, you can contact us by email.