Available on Tape
and Reel For Pick and
Place Manufacturing.
USA/Canada:
Toll Free:
Europe
:
(315) 432-8909
(800) 544-2414
+44 2392-232392
Model 1H1304-20
REV A
Directional Couplers
20 dB
Description
The 1H1304-20 is a low profile 20dB directional coupler in an easy to use
surface mount package covering the AMPS and GSM bands. The 1H1304-
20 is ideal for power and frequency detection as well as VSWR monitoring
and can be used in most high power designs. Parts have been subjected to
rigorous qualification testing and units are 100% tested. They are
manufactured using materials with x and y thermal expansion coefficients
compatible with common substrates such as FR4, G-10 and polyamide.
ELECTRICAL
SPECIFICATIONS**
Frequency
Mean
Coupling
Insertion
Loss
VSWR
Freq.
Sensitivity
MHz
dB
dB Max
Max:1
dB Max
869 - 894
20 1.5
0.25
1.15
0.10
800 - 1000
20 1.5
0.25
1.20
0.30
Directivity
Power
Handling
JC
Operating
Temp.
dB Min
Watts
C / Watt
C
20
150
9.4
-55 to +85
Features:
800 - 1000 MHz
Low loss
High Directivity
Surface Mountable
Tape And Reel
Convenient Package
100% Tested
20
150
9.4
-55 to +85
**Specification based on performance of unit properly installed on microstrip printed circuit
boards with 50
nominal impedance. Specifications subject to change without notice.
Outline Drawing
1H1304-20 Rev A Mechanical Outline
Dimensions are in Inches [Millimeters]
Bottom View (Far-side)
Side View
Top View (Near-side)
.073
.007
[1.85
0.18
]
.560
.010
[14.22
0.25
]
.350
.010
[8.89
0.25
]
.050
.008
[1.27
0.20
]
.050
.008
[1.27
0.20
]
Pin 4
Pin 4
Pin 3
Pin 1
Pin 2
Denotes
Array Number
GND
GND
Pin 2
Pin 1
Pin 3
.024
.004
TYP
[0.61
0.10
]
Part Is Symmetric About All Axis
USA/Canada:
Toll Free:
Europe:
(315) 432-8909
(800) 544-2414
+44 2392-232392
Available on Tape and
Reel For Pick and Place
Manufacturing.
Model 1H1304-20
REV A
Typical Performance: 700 MHz. to 1300 MHz.
Coupling 1H1304-20
-23
-22
-21
-20
-19
700
850
1000
1150
1300
Frequency (MHz)
C
oupl
i
ng (
d
B
)
Return Loss 1H1304-20
-50
-40
-30
-20
-10
0
700
850
1000
1150
1300
Frequency (MHz)
R
e
t
u
rn
L
o
s
s
(d
B
)
Directivity 1H1304-20
-50
-40
-30
-20
-10
700
850
1000
1150
1300
Frequency (MHz)
Dir
e
c
t
iv
it
y
(
d
B
)
Transmission Loss 1H1304-20
-0.4
-0.3
-0.2
-0.1
0
700
850
1000
1150
1300
Frequency (MHz)
T
r
a
n
s
m
i
s
s
i
on
Lo
s
s
(
d
B
)
Pin Configuration
Mounting Footprint
To ensure proper electrical and thermal performance
there must be a ground plane with 100%
solder connection underneath the part
.063 SQ TYP
[1.60]
50
Transmission
Line
Dimensions are in Inches [Millimeters]
1H1304-20 Rev A Mounting Footprint
.250
[6.35]
.460
[11.68]
Part Is Symmetric About All Axis
.034 TYP
[0.86]
Multiple
plated thru holes
to ground
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