CYK-R-G Series
DIRECTIONAL COUPLERS
2 to 46 GHz / Ultra-Wideband / Very High Directivity / Stripline / 25 W / K-Connectors
PRINCIPAL SPECIFICATIONS
Frequency Coupling,¤
Freq.
Sensitivity,
Directivity, *Insertion VSWR, Max.
dB, Loss, Main Coupled oz.(g), Ref.
dB, Max. Typ. Min. dB, Max. Line Line Nom. Dim.
Weight,Outline
Model
Number
Range,
GHz
dB,
Nom.
CYK-16R-21G 2.0 - 40.0
16 ±1.0
10 ±1.0
±1.0
18
15
1.6
1.8
1.50:1 1.50:1 2.0 (56)
1
2
CYK-10R-26G 6.0 - 40.0
40.0 - 46.0
±1.0
±1.5
18
14
15
12
1.50:1 1.50:1 1.5 (43)
1.70:1 1.70:1
CYK-10R-29G 18.0 - 40.0
40.0 - 46.0
10 ±1.0
±1.0
±1.5
19
14
17
12
1.8
1.50:1 1.50:1 1.5 (43)
1.70:1 1.70:1
2
¤Coupling is referenced to the output
* Insertion Loss above Coupling Loss
POWER SPECIFICATIONS
GENERAL SPECIFICATIONS
Coupled ‘‘Loss’’:
12 dB units:
16 dB units:
20 dB units:
0.28 dB
0.11 dB
0.044 dB
Impedance:
50 W nom.
Operating Temperature: -- 55° to +85°C
Options:
Peak Power:
Input Power (Forward):
Reflected Power:
3 kW max.
Higher Frequencies: Available
25 Watts max.
5 Watts max.
50 Watts max.
Alternate Connectors: 2.4 mm available
10/16 dB units:
20/30 dB units:
Others:
Check factory
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
