Dielectric Resonators
Disc and Cylinder Type
Features
I
I
I
I
I
I
I
I
I
Configurations
D Type
D
C Type
D
d
Applications
I
I
I
I
I
L
L
Microwave filters
Military radar/ECM
Satellite communications
Repeaters
Base stations
I
I
I
I
I
Oscillators
Combiners
Duplexers
TVRO/DBS
Telemetry
Note:
Consult the factory for mechanical dimensions.
Part Numbering System
Example:
RCB-10000-C1UA
R
C
B
-
Class
Resonators
Type
D
= Disc
C
= Cylinder
Material
Series
A
= 20
B
= 35
C
= 50
D
= 90
10000
Resonant
Frequency
ƒ
0
(MHz)
Use 5 digits
-
C
Temperature
Coefficient
A
= -6
B
= -3
C
=0
D
=3
E
=6
F
=9
1
Temperature
Coefficient
Tolerance
1
= ±1
2
= ±2
U
Metallization
S
= Silvered
U
= Unsilvered
A
Series
Assigned
by
factory
TE Mode Resonators
Electrical and Physical Characteristics
Material Series
Dielectric Constant (
ε
)
Temp. Coefficient (ppm/°C)
Q (1/tanδ)
Density (g/cm
3
)
Water Absorption (%)
Frequency Range (GHz)
20
20.5±1
0±6
>7,000 (at 10 GHz)
6.0
0.01 max.
2.5~8.5
35
35.5±1
0±6
>7,000 (at 7 GHz)
5.2
0.01 max.
1.5~12.4
50
50.5±1
0±5
>6,000 (at 5 GHz)
6.5
0.01 max.
1.5~11.0
90
89.0±1
1±5
>1,500 (at 3 GHz)
5.8
0.01 max.
1.2~3.5
Temperature Coefficient
Series
A
B
C
D
E
F
Temperature Coefficient (ppm/°C)
-6
-3
0
3
6
9
Temperature Coefficient Tolerance
Type
1
2
Tolerance (ppm/°C)
±1
±2
Dielectric Resonators for Base Stations
Electrical and Physical Characteristics
Material Series
Dielectric Constant (
ε
)
Temp. Coefficient (ppm/°C)
Q (1/tanδ)
Density (g/cm
3
)
Water Absorption (%)
Frequency Range (GHz)
35
35.5±1
-3 to +6
9,600 (at 5 GHz)
35,000 (at 850 MHz)
5.2
0.01 max.
1.5~12.4
Temperature Characteristics
Temperature Coefficient Dielectric Constant Temperature Coefficient Q at 5 GHz
B
35.0±1
-3±1 ppm/°C
>9,500
C
35.5±1
0±1 ppm/°C
>9,400
D
36.0±1
+3±1 ppm/°C
>9,300
E
36.5±1
+6±1 ppm/°C
>9,300
SPECTRUM CONTROL INC.
• 8031 Avonia Rd. • Fairview, PA 16415 • Phone: 814-835-1650 • Fax: 814-835-1651 • Website: www.spectrumcontrol.com
SPECTRUM CONTROL GmbH
• Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
59
Dielectric Resonators Disc and Cylinder Type
Available in disc and cylinder designs
Various sizes available
High dielectric constant
High Q factor (6,000 to 35,000)
Wide frequency range (800 MHz to 12.4 GHz)
Temperature range (-55°C to +125°C)
Linear frequency stability vs. temperature
Repeatability of design
Minimal aging effects
Suggestions & Announcements
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