(1/2)
Conformity to RoHS Directive
Multilayer Chip Dual-Band Directional Couplers
For AGSM/DCS/PCS-Tx
HHM Series HHM2319B2
SHAPES AND DIMENSIONS
2.00.15 0.950.2
3 21
8
4
Terminal functions
1 Band1 input port
567
2 GND
0.650.1 0.30.2
3 Band2 input port
450 termination
5 Band2 output port
6 GND
7 Band1 output port
8 Monitor output port
Dimensions in mm
0.20.2 0.350.1
CIRCUIT DIAGRAM
( ) ( )
OUT 1 GND OUT 2
7 6 5
Monitor
4
output 8
1 2 3
( ) ( )
IN 1 GND IN 2
RECOMMENDED PC BOARD PATTERNS
0.3
0.3
0.3
0.3 Dimensions in mm
This width is 50 .
CPW for 0.6mm thick Teflon substrate.
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.
All specifications are subject to change without notice.
001-02 / 20130901 / rf_coupler_hhm2319b2_en.fm
0.250.2
0.4
50
1.250.15
1.0(2/2)
ELECTRICAL CHARACTERISTICS
Band 12
System AMPS GSM DCS PCS
Frequency range (MHz) 824 to 849 880 to 915 1710 to 1785 1850 to 1910
Coupling factor (dB) 20.01.0 20.01.0 20.01.0 20.01.0
Insertion loss (dB)max. 0.20 0.20 0.30 0.30
IN1-OUT2 (dB)min. 32 32 32 32
IN2-OUT1 (dB)min. 32 32 32 32
Isolation (Directivity) IN1-IN2 (dB)min. 28 28 28 28
35typ. 35typ. 35typ. 35typ.
IN-Load (dB)min.
32min. 32min. 32min. 32min.
VSWR max. 1.3 1.3 1.3 1.3
Operating (C) 40 to +85 40 to +85 40 to +85 40 to +85
Temperature range
Storage (C) 40 to +85 40 to +85 40 to +85 40 to +85
Isolation between opposite bands is specified over the frequency ranges of both bands.
Isolation in-band is specified over the frequency of the band in frequency.
FREQUENCY CHARACTERISTICS
AMPS850/GSM900 DCS1800/PCS1900
COUPLING COUPLING
10 10
1: 1710MHz
1: 824MHz
20.3dB 20.8dB
15 15 2: 1785MHz
2: 849MHz
20.0dB 20.5dB
3: 880MHz 3: 1850MHz
20
20
20.3dB
4 19.7dB
3 4
2 3
1 2
1
4: 915MHz 4: 1910MHz
20.0dB
19.4dB
25 25
30 30
1700 1750 1800 1850 1900 1950 2000
800 850 900 950 1000
( ) Frequency(MHz)
Frequency MHz
ISOLATION ISOLATION
20 20
1: 824MHz 1: 1710MHz
36.5dB 25 35.7dB
25
2: 849MHz 2: 1785MHz
30
36.1dB 35.8dB
30
3: 880MHz 3: 1850MHz
35
35.7dB 35.9dB
1 2 3
35 4
4: 915MHz 4: 1910MHz
4 40
3
2 35.1dB 36.0dB
1
40
45
45 50
800 850 900 950 1000 1700 1750 1800 1850 1900 1950 2000
( )
Frequency(MHz) Frequency MHz
INSERTION LOSS INSERTION LOSS
0 0
1: 824MHz 1: 1710MHz
1 2 3 4
1 0.10dB
0.06dB 2 4
3
0.2 0.2
2: 1785MHz
2: 849MHz
0.12dB
0.06dB
0.4 0.4
3: 1850MHz
3: 880MHz
0.13dB
0.06dB
0.6 0.6
4: 1910MHz
4: 915MHz
0.12dB
0.07dB
0.8 0.8
1.0 1.0
800 850 900 950 1000 1700 1750 1800 1850 1900 1950 2000
( ) ( )
Frequency MHz Frequency MHz
VSWR VSWR
2.0 2.0
1: 824MHz 1: 1710MHz
34.1dB 36.5dB
1.8
1.8
2: 849MHz
2: 1785MHz
33.3dB 34.7dB
1.6
1.6
3: 880MHz
3: 1850MHz
32.2dB 34.7dB
1.4 1.4
4: 915MHz 4: 1910MHz
31.2dB 32.7dB
1.2 1.2
4
2 3 4
1 2 3
1
1.0 1.0
800 850 900 950 1000 1700 1750 1800 1850 1900 1950 2000
( ) ( )
Frequency MHz Frequency MHz
All specifications are subject to change without notice.
001-02 / 20130901 / rf_coupler_hhm2319b2_en.fm
VSWR(dB) ( )
( ) Isolation dB Coupling factor(dB)
Insertion loss dB
( ) ( ) ( )
VSWR dB Insertion loss dB Isolation dB Coupling factor(dB)