TDK HHM2411 User Manual

(1/2)

Multilayer Chip Directional Couplers
For PCS/Tx

HHM Series HHM2411

SHAPES AND DIMENSIONS

50Ω

0.95± 0.1

1.25± 0.15

Terminal functions
1 Input

2 GND
3 Output
450Ω load
5 GND
6 Monitor output

Dimensions in mm

2.0± 0.15

654

123

0.25± 0.2

0.65± 0.2 0.3± 0.2

0.2± 0.2 0.35± 0.2

CIRCUIT DIAGRAM

Monitor

GND

output

6

54

Conformity to RoHS Directive

2

13

IN

GND

OUT

RECOMMENDED PC BOARD PATTERNS

0.35

0.35
This width is 50Ω.

Micro-strip line for 0.4mm thick
glass-epoxy substrate.

1.0

1.0 0.4

0.7

0.4

0.3

ø0.3 Through-hole

Dimensions in mm

ELECTRICAL CHARACTERISTICS

Frequency range 1850 to 1910MHz
Coupling factor –14.5±1.0dB

Insertion loss

Isolation 20dB min.
VSWR 1.4 max.

Temperature range

∗1

25°C

∗2

Operating temperature

Operating –40 to +85°C
Storage –40 to +85°C

0.35dB max.

0.40dB max.

∗1

∗2

• 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 / 20080105 / e761_hhm2411.fm

FREQUENCY CHARACTERISTICS

COUPLING

0

)
dB

–10

(

2

–20

–30

Coupling factor

–40

1500 20001800 190017001600

Frequency(MHz

1

)

1: 1850MHz
–14.4dB
2: 1910MHz
–14.1dB

ISOLATION

0

–10

)

–20

dB

(

–30

–40

Isolation

–50

–60

1500 20001800 190017001600

Frequency(MHz

(2/2)

1: 1850MHz
–27.2dB
2: 1910MHz
–26.9dB

2

1

)

INSERTION LOSS

0

)

–0.2

dB

(

–0.4

–0.6

–0.8

Insertion loss

–1

1500 20001800 190017001600

Frequency(MHz

VSWR

1: 1850MHz

1

)

–0.16dB

2

2: 1910MHz
–0.17dB

2.0

1.8

)

1.6

dB

(

1.4

VSWR

1.2

1.0
1500 1600 20001800 19001700

Frequency(MHz

1

)

1: 1850MHz

1.15dB
2: 1910MHz

1.16dB

2

• All specifications are subject to change without notice.

001-02 / 20080105 / e761_hhm2411.fm