Custom-tailored Ceramic Filters and Diplexers
Ceramic coaxial resonators and multiresonator blocks are perfectly suitable as basic components for T-Ceram custom-tailored Bandpass (BP), Bandreject (BR) and Lowpass (LP) filters, duplexers, diplexers, triplexers and multiplexers.
Modern ceramic materials and silver coatings cause low insertion loss, excellent temperature stability, wide frequency range and small size. The ceramic filters are not sensitive to mechanical shock, vibration, temperature, or humidity. Most of parameters can be fairly changed according to customer specification.
Single coaxial resonators or triple resonator blocks are substantial elements of many types of filters, duplexers, diplexers and triplexers. High permittivity ceramic substrates are used for custom-tailored Bandreject (BR), Lowpass (LP) and Highpass (HP) filters.
Basic characteristics
Frequency range (Center frequency F0 ; from ... to) | 350 MHz ... 6 000 MHz |
Bandwidth of BP filter or band of guaranteed attenuation for BR filter | 1 ... 250 MHz ; 0.5 % ... 15 % of F0 |
Insertion Loss (Insertion loss at center frequency F0) | 0.4 ... 3 dB |
Ripple (Max. Insertion loss variation across the passband) | 0.1 ... 3 dB |
Return Loss (The worst Return loss across the passband) | 20, 18, 16, 15, 14, 12 dB |
Impedance | 50 Ohm |
Connectors | custom (tabs, pins, SMA, SMD...) |
Number of sections | 2, 3, 4, 6, 8 |
Temperature range | -55°C to +85°C |
Custom-tailored Bandpass Dielectric Filters - Typical examples
T-CERAM Number | Center Frequency Fo (MHz) |
Pass Band *1 (MHz) |
IL @ Fo (dB) |
Ripple *2 (dB) |
RL *3 (dB) |
Rejection (dB) |
at (MHz) |
No. of poles |
---|---|---|---|---|---|---|---|---|
TDF-BP-3-0390-16 | 390 | 16 | 1.5 | 0.4 | 15 | 33 | 360 | 3 |
TDF-BP-3-0400-08 | 400 | 8 | 1.6 | 0.4 | 18 | 45 | 370 | 3 |
TDF-BP-6-0420-80 | 420 | 80 | 0.6 | 0.4 | 16 | 45 | 370 | 3 |
TDF-BP-3-0430-08 | 430 | 8 | 1.6 | 0.4 | 18 | 55 | 490 | 3 |
TDF-BP-3-0433-35-B01 | 433 | 35 | 0.6 | 0.2 | 16 | 60 | 325 | 3 |
TDF-BP-3-0476-10-S05 | 476 | 10 | 1.6 | 0.4 | 15 | 35 | 446 | 3 |
TDF-BP-3-0489-04 | 489 | 4 | 1.2 | 0.2 | 16 | 35 | 460 | 3 |
TDF-BP-2-0502-04 | 502 | 4 | 1.0 | 0.2 | 16 | 30 | 530 | 2 |
TDF-BP-2-0523-02 | 523 | 2 | 1.3 | 0.4 | 16 | 20 | 533 | 2 |
TDF-BP-3-0700-08 | 700 | 8 | 2.1 | 0.3 | 16 | 28 | 720 | 3 |
TDF-BP-3-0708-08 | 708 | 8 | 2.1 | 0.3 | 16 | 28 | 728 | 3 |
TDF-BP-3-0716-08 | 716 | 8 | 2.1 | 0.3 | 16 | 28 | 736 | 3 |
TDF-BP-3-0750-18H | 750 | 18 | 2.5 | 3.0 | 12 | 25 | 770 | 3 |
TDF-BP-3-0750-18L | 750 | 18 | 2.8 | 3.0 | 12 | 30 | 730 | 3 |
TDF-BP-3-0754-09 | 754 | 9 | 1.8 | 0.4 | 16 | 30 | 774 | 3 |
TDF-BP-3-0800-10 | 800 | 10 | 2.3 | 0.5 | 14 | 65 | 850 | 3 |
TDF-BP-3-0840-28 | 840 | 28 | 1.5 | 1.5 | 14 | 22 | 871 | 3 |
TDF-BP-3-0842-10 | 842 | 10 | 1.9 | 0.3 | 18 | 42 | 880 | 3 |
TDF-BP-3-0869-10 | 869 | 10 | 1.8 | 0.5 | 14 | 25 | 889 | 3 |
TDF-BP-3-0886-35 | 886 | 35 | 1.1 | 0.8 | 16 | 25 | 936 | 3 |
TDF-BP-3-0910-15 | 910 | 15 | 2.0 | 0.6 | 16 | 30 | 880 | 3 |
TDF-BP-3-0942-35 | 942 | 35 | 1.0 | 0.4 | 18 | 27 | 872 | 3 |
TDF-BP-3-0948-26 | 948 | 26 | 1.2 | 0.4 | 16 | 30 | 1000 | 3 |
TDF-BP-3-0995-14 | 995 | 14 | 1.6 | 0.5 | 16 | 32 | 957 | 3 |
TDF-BP-4-0955-130 | 995 | 130 | 0.8 | 0.6 | 16 | 60 | 755 | 4 |
TDF-BP-3-1000-16 | 1000 | 16 | 2.0 | 1.5 | 16 | 52 | 1050 | 3 |
TDF-BP-3-1024-10 | 1024 | 10 | 1.4 | 0.3 | 18 | 35 | 1074 | 3 |
TDF-BP-3-1079-70 | 1079 | 70 | 1.0 | 0.6 | 14 | 32 | 1214 | 3 |
TDF-BP-4-1080-130 | 1079 | 70 | 0.7 | 0.4 | 16 | 55 | 880 | 4 |
TDF-BP-3-1085-14 | 1085 | 14 | 1.8 | 0.5 | 14 | 56 | 1205 | 3 |
TDF-BP-3-1086-40 | 1086 | 40 | 1.4 | 0.6 | 14 | 50 | 1214 | 3 |
TDF-BP-3-1086-56 | 1086 | 56 | 1.2 | 0.8 | 14 | 40 | 1214 | 3 |
TDF-BP-3-1090-20 | 1090 | 20 | 1.6 | 0.4 | 14 | 60 | 1210 | 3 |
TDF-BP-3-1142-40 | 1142 | 40 | 1.4 | 0.6 | 14 | 45 | 1270 | 3 |
TDF-BP-3-1142-56 | 1142 | 56 | 1.2 | 0.5 | 14 | 35 | 1270 | 3 |
TDF-BP-3-1189-51 | 1189 | 51 | 1.1 | 0.5 | 15 | 35 | 1300 | 3 |
TDF-BP-4-1205-150 | 1205 | 150 | 0.7 | 0.2 | 14 | 50 | 1005 | 4 |
TDF-BP-3-1220-20 | 1220 | 20 | 2.0 | 0.6 | 16 | 45 | 1288 | 3 |
TDF-BP-3-1227-28 | 1227 | 28 | 1.8 | 0.8 | 15 | 30 | 1277 | 3 |
TDF-BP-3-1228-16 | 1228 | 16 | 1.5 | 0.3 | 16 | 60 | 1328 | 3 |
TDF-BP-3-1254-40 | 1254 | 40 | 1.6 | 0.8 | 14 | 50 | 1382 | 3 |
TDF-BP-3-1254-56 | 1254 | 56 | 1.2 | 0.8 | 12 | 43 | 1382 | 3 |
TDF-BP-3-1265-90 | 1192 | 80 | 1.0 | 1.0 | 14 | 20 | 1365 | 3 |
TDF-BP-3-1275-50 | 1275 | 50 | 1.2 | 0.5 | 15 | 20 | 1350 | 3 |
TDF-BP-3-1282-112 | 1282 | 112 | 1.2 | 0.4 | 14 | 25 | 1438 | 3 |
TDF-BP-3-1285-30 | 1285 | 30 | 1.2 | 0.4 | 16 | 30 | 1292 | 3 |
TDF-BP-3-1296-18 | 1296 | 18 | 2.1 | 1.0 | 14 | 28 | 1326 | 3 |
TDF-BP-3-1300-07-SM1 | 1300 | 07 | 3 | 0.3 | 16 | 40 | 1326 | 3 |
TDF-BP-3-1310-40 | 1310 | 40 | 1.8 | 0.8 | 14 | 52 | 1438 | 3 |
TDF-BP-3-1310-56 | 1310 | 56 | 1.1 | 0.5 | 16 | 35 | 1438 | 3 |
TDF-BP-3-1313-26 | 1313 | 26 | 1.2 | 0.4 | 15 | 28 | 1363 | 3 |
TDF-BP-4-1325-150-S03 | 1325 | 150 | 0.5 | 0.2 | 14 | 35 | 1125 | 4 |
TDF-BP-3-1326-60-SM1 | 1326 | 60 | 0.4 | 0.2 | 15 | 15 | 1404 | 3 |
TDF-BP-4-1330-150 | 1330 | 150 | 0.7 | 0.4 | 14 | 40 | 1130 | 4 |
TDF-BP-3-1336-10 | 1336 | 10 | 2.3 | 0.4 | 16 | 55 | 1390 | 3 |
TDF-BP-3-1368-10 | 1368 | 10 | 2.5 | 0.7 | 15 | 58 | 1418 | 3 |
TDF-BP-3-1413-100 | 1413 | 100 | 0.5 | 0.4 | 16 | 31 | 1613 | 3 |
TDF-BP-3-1440-20 | 1440 | 20 | 1.6 | 0.3 | 16 | 40 | 1509 | 3 |
TDF-BP-3-1490-15 | 1490 | 15 | 2.7 | 0.3 | 15 | 42 | 1540 | 3 |
TDF-BP-3-1490-160 | 1490 | 160 | 0.8 | 0.6 | 14 | 35 | 1806 | 3 |
TDF-BP-3-1498-20 | 1498 | 20 | 1.5 | 0.4 | 15 | 18 | 1528 | 3 |
TDF-BP-3-1517-100 | 1517 | 100 | 0.8 | 0.5 | 14 | 20 | 1643 | 3 |
TDF-BP-3-1539-41 | 1539 | 41 | 1 | 0.5 | 14 | 50 | 1675 | 3 |
TDF-BP-3-1550-100 | 1550 | 100 | 1.0 | 0.3 | 16 | 18 | 1700 | 3 |
TDF-BP-3-1575-16 | 1575 | 16 | 1.7 | 0.4 | 16 | 58 | 1675 | 3 |
TDF-BP-3-1601-10 | 1601 | 10 | 2.2 | 0.4 | 15 | 24 | 1626 | 3 |
TDF-BP-3-1651-49 | 1651 | 49 | 0.9 | 1.0 | 15 | 30 | 1559 | 3 |
TDF-BP-6-1685-36 | 1685 | 36 | 1.7 | 0.4 | 16 | 58 | 1675 | 3 |
TDF-BP-3-1725-30 | 1725 | 30 | 1.6 | 0.4 | 15 | 40 | 1805 | 3 |
TDF-BP-3-1842-75 | 1842 | 75 | 1.0 | 0.5 | 15 | 30 | 1992 | 3 |
TDF-BP-3-1863-32 | 1863 | 32 | 1.6 | 0.5 | 15 | 40 | 1768 | 3 |
TDF-BP-3-1868-30 | 1868 | 30 | 1.6 | 0.3 | 15 | 20 | 1918 | 3 |
TDF-BP-3-1955-35 | 1955 | 35 | 1.5 | 0.4 | 16 | 40 | 1856 | 3 |
TDF-BP-6-1985-30 | 1985 | 30 | 2.3 | 0.6 | 16 | 55 | 2050 | 6 |
TDF-BP-4-1988-40 | 1988 | 40 | 0.8 | 1 | 16 | 54 | 2048 | 4 |
TDF-BP-6-1995-30 | 1995 | 30 | 2.3 | 0.4 | 16 | 60 | 2065 | 6 |
TDF-BP-6-2005-20 | 2005 | 20 | 5 | 0.8 | 16 | 70 | 2055 | 6 |
TDF-BP-3-2048-20 | 2048 | 20 | 2.3 | 0.5 | 15 | 35 | 2098 | 3 |
TDF-BP-6-2080-50 | 2080 | 50 | 2.5 | 0.7 | 15 | 60 | 2160 | 6 |
TDF-BP-3-2140-60 | 2140 | 60 | 1.3 | 0.5 | 15 | 45 | 2400 | 3 |
TDF-BP-6-2140-60 | 2140 | 60 | 2.1 | 0.8 | 16 | 50 | 2220 | 6 |
TDF-BP-3-2235-240 | 2235 | 240 | 1.0 | 3.5 | 14 | 28 | 2535 | 3 |
TDF-BP-3-2320-20 | 2320 | 20 | 2.3 | 0.3 | 15 | 60 | 2420 | 3 |
TDF-BP-3-2325-12 | 2325 | 12 | 2.5 | 0.4 | 15 | 45 | 2400 | 3 |
TDF-BP-3-2335-240 | 2335 | 240 | 1.2 | 2.0 | 15 | 25 | 2535 | 3 |
TDF-BP-3-2370-40 | 2370 | 40 | 1.8 | 0.3 | 14 | 12 | 2410 | 3 |
TDF-BP-3-2760-20 | 2760 | 20 | 2.1 | 0.3 | 15 | 45 | 2880 | 3 |
TDF-BP-3-2890-20 | 2890 | 20 | 2.1 | 0.3 | 15 | 45 | 2760 | 3 |
TDF-BP-3-2998-18 | 2998 | 18 | 2.7 | 0.5 | 14 | 45 | 2784 | 3 |
TDF-BP-3-3900-20 | 3900 | 20 | 1.6 | 0.5 | 15 | 30 | 4000 | 3 |
TDF-BP-3-5000-100 | 5000 | 100 | 2.3 | 0.5 | 15 | 28 | 5200 | 3 |
TDF-BP-3-5400-120 | 5400 | 120 | 1.0 | 0.8 | 15 | 22 | 5600 | 3 |
TDF-BP-3-5470-100 | 5470 | 100 | 1.2 | 0.5 | 15 | 33 | 5740 | 3 |
TDF-BP-3-5560-80 | 5560 | 80 | 1.3 | 0.5 | 14 | 27 | 5700 | 3 |
*1 Pass Band can be specified by: - max. IL variation across the passband, min. RL, max. GD variation ... *2 Max. IL variation across the passband *3 The worst Return Loss across the passband |
IL = Insertion Loss (in dB) RL = Returnn Loss (in dB) GD = Group Delay (in ns) Attenuation @ = Abs. attenuation at spec. frequency |
Custom-tailored Notch Dielectric Filters - Typical examples
T-CERAM Number | Center Frequency Fo (MHz) |
Rejection Band *1 (MHz) |
Rejection (dB) |
Pass Band *2 From ... To (MHz) |
Insertion Loss in PB (dB) |
Return Loss in PB (dB) |
No. of poles |
|
---|---|---|---|---|---|---|---|---|
TDF-BR-4-0429-04 | 429 | 4 | 55 | 417 - 421 | 1.4 | 14 | 4 | |
TDF-BR-2-0433-01 | 433.1 | 0.1 | 8 | 434 - 434.2 | 1.4 | 15 | 2 | |
TDF-BR-2-0434-01 | 434.1 | 0.1 | 8 | 433 - 433.2 | 1.4 | 15 | 2 | |
TDF-BR-3-0869-01 | 869.5 | 0.6 | 20 | DC - 860 880 - 2300 |
0.8 | 15 (12) | 3 | |
TDF-BR-4-0902-40 | 902 | 42 | 25 | 936 - 962 | 1.4 | 15 | 4 | |
TDF-BR-3-0929-01 | 929 | 1 | 15 | DC - 920 938 - 2300 |
0.8 | 15 (12) | 3 | |
TDF-BR-3-1227-01 | 1227 | 1 | 20 | DC - 1220 1240 - 2300 |
1 (1.5) | 14 (10) | 3 | |
TDF-BR-3-1484-08 | 1484 | 8 | 40 | DC - 1400 | 0.5 | 15 | 3 | |
TDF-BR-3-1577-34 | 1577 | 34 | 20 | DC - 1500 1640 - 2300 |
1.3 | 12 (10) | 3 | |
TDF-BR-2-3631-08 | 3631 | 8 | 4 | DC - 3623 3639 - 3800 |
0.5 | 12 | 2 | |
*1 The frequency band with guaranteed rejection *2 The frequency band(s) with guaranteed Insertion Loss and Return Loss |
IL = Insertion Loss (in dB) RL = Returnn Loss (in dB) PB = Pass Band |
Dielectric diplexers - Typical examples
Dielectric duplexer
TDD-BR-4-0462-1-10-T460
2 x 4 pole
F = 457/467 MHz
BW = 1 MHz
Channel spacing = 10 MHz
Insertion loss < 1.4 dB
Rejection > 75 dB
Return loss > 20 dB
Dielectric duplexer
TDD-BR-4-0925-25-45-C393
2 x 4 pole
F = 903/948 MHz
BW = 25 MHz
Channel spacing = 45 MHz
Insertion loss < 2.3 dB
Rejection > 40 dB
Return loss > 15 dB
Dielectric diplexer
TDD-BP-3-1933-35-80-C220
2 x 3 pole
F = 1893/1973 MHz
BW = 35 MHz
Channel spacing = 80 MHz
Insertion loss < 2.2 dB
Rejection > 30 dB
Return loss > 15 dB