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 11305-20
Rev. A
Directional Couplers
20 dB
Description
The 11305-20 is a low profile 20dB directional coupler in an easy to use
surface mount package covering 1.0 to 2.0 GHz. The 11305-20 is ideal
for power and frequency detection 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
1.0 – 2.0 20.0 ± 1.0 0.35 1.20 ±0.80
Directivity Power
Handling ΘJC Operating
Temp.
dB Min Watts ºC / Watt ºC
Features:
• 1.0 – 2.0 GHz
• Low loss
• High Directivity
• Surface Mountable
• Tape And Reel
• Convenient Package
• 100% Tested
18 60 14.2 -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
11305-20 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 11305-20
Rev. A
Typical Performance: 0.9 GHz. to 2.1 GHz.
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]
11305-20 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
Coupling 11305-20
-22
-21.5
-21
-20.5
-20
-19.5
900 1200 1500 1800 2100
Frequency (MHz)
Coupling (dB)
Return Loss 11305-20
-50
-40
-30
-20
-10
0
900 1200 1500 1800 2100
Frequency (MHz)
Return Loss (dB)
Transmission Loss 11305-20
-0.4
-0.3
-0.2
-0.1
0
900 1200 1500 1800 2100
Frequency (MHz)
Transm ission Loss (dB)
Directivity 11305-20
-50
-40
-30
-20
-10
0
900 1100 1300 1500 1700 1900 2100
Frequency (MHz)
Directivity (dB )
