LTCC DIRECTIONAL
COUPLERS
DA T A S HE E T
D3DD30F
6.9.2010
FEATURES
•
•
•
•
•
•
•
APPLICATIONS
Power Amplifiers
Power Monitors
Reflectometers
Signal Distribution Networks
Switch Networks
Phase Shifters
Low Profile Surface Mount Package
•
High Power
•
Low Insertion Loss
•
High Isolation
•
RoHS Compliant
•
Tape and Reel available for High Volume Production
•
100% RF Tested
GENERAL DESCRIPTION
The D3DD30F is a high performance directional coupler in a surface mount package. This low profile coupler handles
up to 200 watts of CW power. The D3DD30F is designed for those demanding applications where high power, low loss
and excellent directivity are required.
The D3DD30F is manufactured with materials that have thermal expansion characteristics compatible with industry
standard board materials like RO3003, RO4350, FR4 and others. The couplers are available in a RoHS compliant finish
and packaged in tape and reel.
ELECTRICAL SPECIFICATIONS*
Frequency
MHz
815-960
Coupling
(dB)
30 ± 1.5
Directivity
dB (min)
18
Insertion
Loss
dB (max)
0.2
VSWR
(max)
1.2
Power
Handling
Watts CW
200
Operating
Temperature
°
C
-55 to +125
Specification Notes:
* Measured on Florida RF Labs test fixture. Specifications are subject to change without notice.
1
emct.com • rflabs.com • 772-286-9300
AS 9100, ISO 9001, ISO 14001, OHSAS 18001 Certified
LTCC DIRECTIONAL
COUPLERS
DA T A S HE E T
D3DD30F
6.9.2010
COUPLER PIN CONFIGURATION AND MECHANICAL OUTLINE
PORTS
P1
P2
P3
P4
P1
-
OUT
ISO
COUP
P2
OUT
-
COUP
ISO
P3
ISO
COUP
-
OUT
P4
COUP
ISO
OUT
-
0.560 [14.22]
P1
P2
0.075 [1.90]
P2
P1
0.350 [8.89]
P4
P3
P3
0.065 [1.65]
0.039 [1.00]
P4
COMMONLY USED ATTACHMENT MATERIALS
Material
Gold-Tin Solder
Lead-Free Solder
Lead-Free Solder
Lead-Free Solder
Sn63 Solder
Conductive Epoxy
Composition
80% Gold / 20% Tin
99.3% Tin – 0.7% Copper
96.5% Tin / 3.5% Silver
96.5% Tin / 3% Silver / 0.5% Copper
63% Tin / 37% Lead
Silver Filled
Thermal Conductivity
( Watts/cm/°C )
°
0.58
N/A
0.33
N/A
0.49
0.01 to 0.29
Melting Temperature
(
°
C )
280
227
221
217 - 220
183
N/A
2
emct.com • rflabs.com • 772-286-9300
AS 9100, ISO 9001, ISO 14001, OHSAS 18001 Certified
LTCC DIRECTIONAL
COUPLERS
DA T A S HE E T
D3DD30F
6.9.2010
TYPICAL PERFORMANCE AT 25ºC
COUPLING
-26
-27
-28
-29
|dB|
dB
-30
-31
-32
-33
-34
-35
0.7
0.8
Frequency (GHz)
0.9
1
25
0.7
0.8
35
40
DIRECTIVITY
30
0.9
Frequency (GHz)
1
INSERTION LOSS
0
1.4
1.35
-0.05
1.3
1.25
1.2
-0.15
1.15
1.1
-0.2
1.05
-0.25
0.7
0.8
Frequency (GHz)
0.9
1
1
0.7
0.8
VSWR
-0.1
dB
0.9
Frequency (GHz)
1
3
emct.com • rflabs.com • 772-286-9300
AS 9100, ISO 9001, ISO 14001, OHSAS 18001 Certified
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