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Circulators/Isolators
For Base-station, Strip-Line and Pin-Terminal Types
CU Series
FEATURES
• The CU series circulators and isolators are the most suitable for
the transmitters of the mobile communication’s base-station from
VHF to 2GHz band.
PRODUCT IDENTIFICATION
Type name
∗a ∗b ∗c
-
∗d
-
∗e ∗f
∗a
:
Direction of circulation. Fill in with a letter A or B.
A: CW (clock-wise)
B: C, CW (counter clock-wise)
∗b
:
Bandwidth
1: Standard bandwidth
3, 5: Wide bandwidth
∗c
:
Connector type
L: Strip-line type
P: Pin-type (coaxial-guide type)
∗d
:
Center frequency (nominal frequency)
∗e
:
Terminal position number (Refer to the “TERMINAL POSI-
TION” table)
∗f
:
Circulator/Isolator specification
C: Circulator
T: Isolator
TERMINAL POSITION
Terminal
position
group
Terminal position number
ISOLATOR
CIRCULATOR
6
A
A
B
B
1
A
B
2
7
A
A
B
A
B
B
B
A
A
B
A
C
B
B
A
A
D
B
A
E
B
A
A
A
B
B
F
B
ELECTRICAL CHARACTERISTICS
Part No.
Circulator/
Isolator
Band
Insertion
Maximum
Frequency
Isolation
VSWR
width
loss
handling
range
∗1
(dB)
max.
(%)
(dB)
power
(MHz)
min.
Z
0
=50Ω
max.
max.
(W)
±10
Full
Full
±5
±5
±5
±1.5
±1.5
±1.5
18
18
18
18
18
20
18
18
15
0.7
0.6
0.6
0.65
0.65
0.3
0.6
0.6
0.7
1.25
1.25
1.25
1.25
1.25
1.2
1.3
1.3
1.35
30
100
100
30
70
150
10
10
10
Capacity
of built-in
resistor
∗2
(W)
30
100
40× 40× 20
100
15
50
50
4
4
4
15× 15× 7.1
B
–35 to +85
7
Pin
30× 30× 16
30× 30× 17
30× 30× 16.5
A
E
E
–10 to +50
–10 to +50
–35 to +85
45
60
80
Strip-line
Strip-line
Strip-line
F
–10 to +50
130
Strip-line
Dimensions
(mm)
Terminal Temperature
Weight Connector
[Except
position range
(g)
type
connector] group
(°C)
L× W× T
50× 50× 20
F
–10 to +50
170
Strip-line
CU48R
∗a
5
∗b
L
∗c
-
∗d
-6
∗e
C
∗f
/ 100 to
CU48R 5L- - T
400
470 to
600
CU44R 5L- -6C/
CU44R 5L- - T
600 to
770
CU49P 3L- - C/
400 to
CU49P 3L- - T
800
400 to
CU49R 3L- -1T
800
800 to
CU12G 3L- -1T
1000
800 to
1000
CU42J 1P- -6C/
1400 to
CU42J 1P- - -T
1900
1900 to
2000
• All specifications are subject to change without notice.
003-02 / 20070621 / e772_cu.fm
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ELECTRICAL CHARACTERISTICS
Part No.
Circulator/
Isolator
Band
Insertion
Maximum
Frequency
Isolation
VSWR
width
loss
handling
range
∗1
(dB)
max.
(%)
(dB)
power
(MHz)
min.
Z
0
=50Ω
max.
max.
(W)
1805 to
1880
1890 to
1920
1930 to
1990
1920 to
1980
2110 to
2170
1805 to
1880
1890 to
1920
1930 to
1990
2110 to
2170
1805 to
1880
1890 to
1920
1930 to
1990
2110 to
2170
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
20
20
20
20
20
20
20
20
20
20
20
20
20
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
10
10
10
10
10
100
100
100
100
130
130
130
130
Capacity
of built-in
resistor
∗2
(W)
4
4
4
4
4
25
25
20× 20× 8
25
25
70
70
25× 25× 9
70
70
E
–35 to +85
35
Strip-line
E
–35 to +85
25
Strip-line
20× 20× 6
D
–35 to +85
15
Strip-line
Dimensions
(mm)
Terminal Temperature
Weight Connector
[Except
position range
(g)
type
connector] group
(°C)
L× W× T
CU12R 3L-
CU12R 3L- -
1
T
-
1
T
∗3
CU12H 3L- -
1
T
∗4
CU12H 3L- -
1
T
CU13G 3L- -
1
T
∗4
CU13G 3L- -
1
T
∗1
The tunable frequencies are represented in different ways for different models.
• The center frequency range and the bandwidth (the bandwidth is shown as a ratio)
Example CU48R 5L- -1T
Center frequency tunable range (MHz)
100 to 400
Bandwidth (%)max.
±10
• A fixed frequency range (the bandwidth is shown as “Full”)
Example CU44R 5L- -1T
Frequency range (MHz)
470 to 600
600 to 700
∗2
Dummy
∗3
IMD:
∗4
IMD:
Full
load capability when converted to isolator.
–70dBc max.(30dBm/tone: Ave. 33dBm)
–75dBc max.(41dBm/tone: Ave. 44dBm)
• Test circuit for IMD measurement
SG 1 Amp 1 Isolators
Combiner (3dB coupler)
Spectrum analyzer
SG 2 Amp 2 Isolators
Power
meter 1
D.U.T.
isolator
Coupler 1
Power
meter 2
VR
ATT
Coupler 2 Coupler 3
• TDK will be pleased to submit quotations on any customer’s requirements which are not included in this data.
Please contact our branch office or representative.
• All specifications are subject to change without notice.
003-02 / 20070621 / e772_cu.fm
Industrial Control Electronics
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