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 1W1305
-
20
Rev. A
Directional Couplers
20 dB
Description
The 1W1305-20 is a low profile 20dB directional coupler in an easy to use
surface mount package covering the DCS and PCS bandwidths. The
1W1305-20 is ideal for power and frequency detection as well as power
injection 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
GHz dB dB Max Max:1 dB Max
1.805 – 1.88 20.5 ± 1.0 0.25 1.18 ±0.075
1.93 – 1.99 20.5 ± 1.0 0.25 1.18 ±0.075
1.7 – 2.0 20.5 ± 1.5 0.25 1.20 ±0.30
Directivity Power
Handling ΘJC Operating
Temp.
dB Min Watts ºC / Watt ºC
24 100 14.7 -55 to +85
24 100 14.7 -55 to +85
Features:
• 1.7 - 2.2 GHz
• Low loss
• High Directivity
• Surface Mountable
• Tape And Reel
• Convenient Package
• 100% Tested
20 100 14.7 -55 to +85
**Specification based on performance of unit properly installed on microstrip printed circuit
boards with 50 Ω nominal impedance. Specifications subject to change without notice.
Outline Drawing
1W1305-20 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]
.076±.008
[1.93±0.20]
.076±.008
[1.93±0.20]
.037±.004 TYP
[0.94±0.10]
Part Is Symmetric About All Axis
Pin 2
GND
Pin 1
Pin 3 Pin 4
Pin 1
Pin 4 Pin 3
Pin 2
GND
Denotes
Array Number
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 1W1305
-
20
Rev. A
Typical Performance: 1.4 GHz. to 2.3 GHz.
Coupling 1W1305-20
-22
-21.5
-21
-20.5
-20
1400 1550 1700 1850 2000 2150 2300
Frequency (MHz)
Coupling (dB)
Return Loss 1W1305-20
-50
-40
-30
-20
-10
0
1400 1550 1700 1850 2000 2150 2300
Frequency (MHz)
Return Loss (dB)
Directivity 1W1305-20
-50
-40
-30
-20
-10
1400 1550 1700 1850 2000 2150 2300
Frequency (MHz)
Directivity (dB)
Transmission Loss 1W1305-20
-0.4
-0.3
-0.2
-0.1
0.0
1400 1550 1700 1850 2000 2150 2300
Frequency (MHz)
Transmission Loss (dB)
Pin Configuration Mounting Footprint
To ensure proper electrical and thermal performance
there must be a ground plane with 100%
solder connection underneath the part
Dimensions are in Inches [Millimeters]
1W1305-20 Rev A Mounting Footprint
Part Is Symmetric About All Axis
Multiple
plated thru holes
to ground
.406
[10.31]
.034 TYP
[0.86]
.078 SQ TYP
[1.98] 50
Transmission
Line
.196
[4.98]
