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001-01 / 20130901 / rf_coupler_hhm2942a2_en.fm
• All specifications are subject to change without notice.
Multilayer Chip Directional Couplers
For 2.4GHz/5GHz W-LAN
HHM Series HHM2942A2
SHAPES AND DIMENSIONS
RECOMMENDED PC BOARD PATTERNS
ELECTRICAL CHARACTERISTICS
1 25°C
2 Operating temperature
Frequency range 2400 to 2500MHz 4900 to 5850MHz
Coupling factor 18.2±1.0dB 11.7±1.5dB
Insertion loss 0.25dB max.10.45dB max.1
0.28dB max.20.50dB max.2
Isolation 15dB min. 15dB min.
VSWR 1.3max. 1.3max.
Temperature range Operating –40 to +85°C –40 to +85°C
Storage –40 to +85°C –40 to +85°C
Conformity to RoHS Directive
Dimensions in mm
43
12
0.50±0.15
1.00±0.05
0.50±0.050.40max.
0.30±0.15
1 Coupling
250Ω term
3 Output
4 Input
Terminal functions
0.10+0.10
–0.05
0.25+0.15
–0.10
0.40.15
0.350.1
Dimensions in mm
•Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and
specific bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.
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001-01 / 20130901 / rf_coupler_hhm2942a2_en.fm
• All specifications are subject to change without notice.
FREQUENCY CHARACTERISTICS
COUPLING
INSERTION LOSS
ISOLATION & DIRECTIVITY
VSWR
25
30
35
6000
20
15
10
5
0
Coupling factor(dB)
Frequency(MHz)
1: 2400MHz
18.4dB
2: 2500MHz
18.0dB
3: 4900MHz
12.4dB
4: 5350MHz
11.8dB
5: 5850MHz
11.0dB
40
2000 40002500 3000 3500 4500 5000 5500
12
345
6000
1: 2400MHz
0.09dB
2: 2500MHz
0.09dB
3: 4900MHz
0.16dB
4: 5350MHz
0.24dB
5: 5850MHz
0.34dB
2000 40002500 3000 3500 4500 5000 5500
Frequency(MHz)
3.0
2.5
1.5
0.5
2.0
1.0
0.0
Insertion loss(dB)
12345
Frequency(MHz)
Isolation & Directivity(dB)
Isolation
:
1: 2400MHz
37.3dB
2: 2500MHz
37.0dB
3: 4900MHz
44.1dB
4: 5350MHz
38.0dB
5: 5850MHz
30.0dB
Directivity
:
1: 2400MHz
18.9dB
2: 2500MHz
18.9dB
3: 4900MHz
31.7dB
4: 5350MHz
26.2dB
5: 5850MHz
19.0dB
30
20
10
0
50
40
60002000 40002500 3000 3500 4500 5000 5500
12
3
4
5
12
3
4
5
6000
1: 2400MHz
1.01
2: 2500MHz
1.02
3: 4900MHz
1.01
4: 5350MHz
1.06
5: 5850MHz
1.15
2000 40002500 3000 3500 4500 5000 5500
Frequency(MHz)
1.2
1.4
1.6
1.8
1.0
2.0
VSWR
12345
