HIGH FREQUENCY DEVICES
DIELECTRIC RESONATORS–DRD & DRT
M Series
GENERAL CHARACTERISTICS
ꢀ High unloaded Q – 7,000 min. at 7GHz.
ꢀ High dielectric constant – ꢀr ꢀ 38.
ꢀ Resonant frequency temperature coefficient can be
chosen from 0 to 6ppm/°C. Tolerance of frequency
temperature coefficient can be chosen from 0.5, 1,
and 2ppm/°C.
DIMENSIONS & FREQUENCY RANGE
DRD TYPE
Dr 0.05
Lr 0.05
Frequency
Part Number
(mm)
(mm)
Range (GHz)
DRD046Mꢀ021
DRD051Mꢀ022
DRD055Mꢀ024
DRD060Mꢀ027
DRD065Mꢀ029
DRD071Mꢀ031
DRD077Mꢀ034
DRD084Mꢀ037
DRD091Mꢀ040
DRD099Mꢀ044
DRD107Mꢀ048
DRD117Mꢀ052
DRD127Mꢀ056
DRD138Mꢀ061
DRD150Mꢀ067
DRD163Mꢀ072
DRD178Mꢀ079
DRD193Mꢀ086
DRD210Mꢀ093
DRD228Mꢀ101
DRD248Mꢀ110
DRD270Mꢀ120
DRD293Mꢀ130
DRD319Mꢀ142
DRD347Mꢀ154
4.65
5.06
2.06
2.24
2.44
2.65
2.88
3.14
3.41
3.71
4.03
4.38
4.77
5.18
5.63
6.13
6.66
7.24
11.46 to 12.45
10.54 to 11.46
9.69 to 10.54
8.91 to 9.69
8.20 to 8.91
7.54 to 8.20
6.93 to 7.54
6.38 to 6.93
5.87 to 6.38
5.40 to 5.87
4.96 to 5.40
4.56 to 4.96
4.20 to 4.56
3.86 to 4.20
3.55 to 3.86
3.27 to 3.55
3.00 to 3.27
2.76 to 3.00
2.54 to 2.76
2.34 to 2.54
2.15 to 2.34
1.98 to 2.15
1.82 to 1.98
1.67 to 1.82
1.54 to 1.67
5.50
5.98
CONFIGURATION
6.50
7.07
Dr
7.69
Dr
dr
8.36
9.09
9.88
Lr
Lr
10.75
11.68
12.70
13.81
15.02
16.33
17.76
19.31
21.00
22.83
24.82
26.99
29.35
31.91
34.70
DRT
DRD
7.88
Copper
Cavity
Do
Dr
8.56
9.31
10.13
11.01
11.97
13.02
14.15
15.39
Resomics
Support
Lr
Lo
Ls
TABLE 1: Q & ꢀf
DRT TYPE
Dr 0.05 dr 0.1 Lr 0.05
Frequency
Frequency Temperature
Coefficient
Dielectric
Constant
(ꢁr)
37.4 0.5
37.7 0.5
38.0 0.5
38.3 0.5
Unloaded
Part Number
Characteristic
Code
(mm)
(mm)
(mm)
Range (GHz)
Q
(ꢁf) (ppm/°C)
(at 7GHz)
DRT051M020ꢀ022
DRT055M020ꢀ024
DRT060M020ꢀ027
DRT065M020ꢀ029
DRT071M020ꢀ031
DRT077M020ꢀ034
DRT084M030ꢀ037
DRT091M030ꢀ040
DRT099M030ꢀ044
DRT107M040ꢀ048
DRT117M040ꢀ052
DRT127M040ꢀ056
DRT138M040ꢀ061
DRT150M040ꢀ067
DRT163M040ꢀ072
DRT178M040ꢀ079
DRT193M040ꢀ086
DRT210M040ꢀ093
5.06
5.50
2.0
2.0
2.0
2.0
2.0
2.0
3.0
3.0
3.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
2.24
2.44
2.65
2.88
3.14
3.41
3.71
4.03
4.38
4.77
5.18
5.63
6.13
6.66
7.24
7.88
8.56
9.31
10.45 to 11.45
9.69 to 10.45
8.91 to 9.69
8.20 to 8.91
7.54 to 8.20
6.93 to 7.54
6.38 to 6.93
5.87 to 6.38
5.40 to 5.87
4.96 to 5.40
4.56 to 4.96
4.20 to 4.56
3.86 to 4.20
3.55 to 3.86
3.27 to 3.55
3.00 to 3.27
2.76 to 3.00
2.54 to 2.76
C
D
E
F
0
2
4
6
7,400 min.
7,200 min.
7,100 min.
7,000 min.
5.98
6.50
7.07
7.69
8.36
9.09
100,000
Q can be approximated by: Q ≥
9.88
1.95 x fo + 0.117 x ꢁ
– 0.15
10.75
11.68
12.70
13.81
15.02
16.33
17.76
19.31
21.00
f
TABLE 2: ꢀf TOLERANCE
Tolerance of Frequency
Special Code
Temperature Coefficient
(ppm/°C)
No Code
2
1
A
B
0.5
PART NUMBERING
DRT
055
M
020
ꢀ
024
A
ꢀ
ꢀ
ꢀ
DRD = disk type
DRT = cylindrical type
Outside diameter Material
(Dr) type
Inside diameter
ꢁ (Resonant Freq., T.C.)
Thickness
(Lr)
ꢁ tolerance
f
f
(dr) for DRT only as shown in Table 1
as shown in Table 2
ꢀNote: For actual dimension in mm, divide number by 10.
CG01-J
293