Aug./2009 Ver5.0
TDK Corporation
Note: This document is PRELIMINARY. All specifications are subject to change and are not guaranteed.
MULTILAYER DIRECTIONAL COUPLER SPECIFICATION
P/N: HHM2910E1
ELECTRICAL CHARACTERISTICS
Frequency Coupling Ins.Loss(1) Ins.Loss(2) Isolation VSWR
1710-1755 21.2+/-1.0 0.22 Max. 0.25 Max. 34 Min. 1.4 Max.
1750-1980 20.5+/-1.0 0.22 Max. 0.25 Max. 34 Min. 1.4 Max.
1980-2025 19.9+/-1.0 0.22 Max. 0.25 Max. 34 Min. 1.4 Max.
MHz dB dB dB dB
Ins. Loss(1):at 25 degree
Ins.Loss(2):at Operating Temperature
TEMPERATURE RANGE
Storage Temperature : -40 ~ +85 0C
Operating Temperature : -40 ~ +85 0C
[MECHANICAL DIMENSIONS]
Pin configuration
1. Coupling
2. 50 ohm term
3. Output
4. Input
Unit: mm
0.25+0.15/-0.10
1.00 ± 0.05
0.50±0.05
0.40Max.
4 3
1 2
0.50 ± 0.15
0.30±0.15
0.10+0.10/-0.05
Aug./2009 Ver5.0
TDK Corporation
Note: This document is PRELIMINARY. All specifications are subject to change and are not guaranteed.
[FREQUENCY CHARACTERISTICS]
[RECOMMENDED LANDPATTERN]
0.40
0.35
0.10
0.15
HHM2910E1 Smaple data
Coupling LogMAG Isolation&Directivity LogMAG Isolation Directivity
1710 MHz 1710 MHz 1710 MHz
21.2 dB 40.5 dB 19.3 dB
1750 MHz 1750 MHz 1750 MHz
21.0 dB 40.4 dB 19.4 dB
1850 MHz 1850 MHz 1850 MHz
20.6 dB 40.2 dB 19.6 dB
1980 MHz 1980 MHz 1980 MHz
20.0 dB 40.1 dB 20.1 dB
2025 MHz 2025 MHz 2025 MHz
19.8 dB 40.1 dB 20.3 dB
Insertion Loss LogMAG VSWR
1710 MHz 1710 MHz
0.08 dB 1.01
1750 MHz 1750 MHz
0.09 dB 1.01
1850 MHz 1850 MHz
0.08 dB 1.01
1980 MHz 1980 MHz
0.08 dB 1.01
2025 MHz 2025 MHz
0.08 dB 1.01
0
10
20
30
40
50
1700 1800 1900 2000 2100
0.0
0.2
0.4
0.6
0.8
1.0
1700 1800 1900 2000 2100
0
5
10
15
20
25
30
35
40
1700 1800 1900 2000 2100
1.0
1.2
1.4
1.6
1.8
2.0
1700 1800 1900 2000 2100
