CYK-R-G Series
DIRECTIONAL COUPLERS
2 to 46 GHz / Ultra-Wideband / Very High Directivity / Stripline / 25 W / K-Connectors
PRINCIPAL SPECIFICATIONS
Model
Number
Frequency
Range,
GHz
Coupling,¤
Freq.
Directivity,
dB,
Sensitivity,
dB,
Nom.
dB, Max. Typ. Min.
16
±1.0
10
±1.0
10
±1.0
±1.0
±1.0
±1.5
±1.0
±1.5
18
18
14
19
14
15
15
12
17
12
*Insertion
Loss,
dB, Max.
1.6
1.8
1.8
VSWR, Max.
Weight,Outline
Main Coupled oz.(g), Ref.
Line
Line
Nom. Dim.
1.50:1 1.50:1
1.50:1 1.50:1
1.70:1 1.70:1
1.50:1 1.50:1
1.70:1 1.70:1
2.0 (56)
1.5 (43)
1.5 (43)
1
2
2
CYK-16R-21G 2.0 - 40.0
CYK-10R-26G 6.0 - 40.0
40.0 - 46.0
CYK-10R-29G 18.0 - 40.0
40.0 - 46.0
¤Coupling is referenced to the
output
* Insertion Loss
above
Coupling Loss
POWER SPECIFICATIONS
Coupled ‘‘Loss’’:
12 dB units:
16 dB units:
20 dB units:
0.28 dB
0.11 dB
0.044 dB
3 kW max.
25 Watts max.
5 Watts max.
50 Watts max.
GENERAL SPECIFICATIONS
Impedance:
Operating Temperature:
Options:
Higher Frequencies: Available
Alternate Connectors: 2.4 mm available
Others:
Check factory
50
Ω
nom.
-- 55° to +85°C
Peak Power:
Input Power (Forward):
Reflected Power:
10/16 dB units:
20/30 dB units:
General Notes:
1. The CYK-R series of directional couplers consists of three port connectorized devices utilizing special
stripline technology developed for very high directivity over very wide bandwidths.
2. Although the CYK-16R-21G is fully specified down to 2 GHz, it is usable down to 1 GHz with a higher
coupling.
3. This series is ideally suited to precise measurement of forward or reflected power in general purpose
ATE systems, as well as in EW and similar wideband systems where high directivity is essential.
4. Units with performance customized for your requirements are available. Options include coupling
values up to 35 dB and with frequency coverage up to 50 GHz.
5. These units comply with MIL-C-15370 and may be supplied screened for compliance with additional
specifications you designate for military and aerospace applications requiring the highest reliability.
22Feb96
For further information contact
MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531
CYK-R-G Series
DIRECTIONAL COUPLERS
2 to 40 & 4 to 46 GHz / Ultra-Wideband / Very High Directivity / Stripline / 25 W / K-Connectors
Package Outline
NOTES:
1. Tolerance on 3 place decimals
±
.020(.51) except as noted.
2. Dimensions in inches over mm
21Feb96
F rf t e if r to c n a t
M ERRI AC /41 Faifel Pl,W estCal
o ur h r n o ma in o t c
M
ri d .
dwel,NJ,07006 / 973- 1300 /FAX 973- 0531
l
575-
575-
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