215 Vineyard Court, Morgan Hill, CA 95037 | Ph: 408.778.4200 | Fax 408.778.4300 | info@markimicrowave.com
11/16/11
DIPLEXER DPX-2
Features
Low Insertion Loss
Superior Repeatability
Low Profile Miniaturized, Reflow Solderable Package Option
User defined cross over frequencies available
Electrical Specifications – Specifications guaranteed from -55 to +100 C, measured in a 50Ω system.
Parameter
Frequency Range (GHz)
Min
Typ
Max
Cross Over Frequency
2.05
±5 %
Low Pass Filter
Pass Band Insertion Loss (dB)
DC to 1.5
0.6
1.2
Stop Band Rejection (dB)
2.7 to 3.5
15
3.5 to 7
20
25
Pass Band Return Loss (dB)
<1.5
15
High Pass Filter
Pass Band Insertion Loss (dB)
2.7 to 7
0.6
1.2
Stop Band Rejection (dB)
<1
25
30
<1.5
15
Pass Band Return Loss (dB)
2.7 to 7
15
Common Port Return Loss (dB)
<1.5
15
2.7 to 7
15
Isolation (dB)
<1.4
14
25
2.9 to 7
14
25
RF Power (W)
1
Part Number Options
Package Style(s)
1
Example
DPX (Surface Mount)
DPXN (Connectorized)
DPX-2-1
DPXN-2
1
For surface mount package, specify port configuration by adding –1 or –2 suffix to model number. Default is –2 configuration when not
specified.
2
S-Parameters include test fixture.
Available in either a connectorized or miniature surface mount
package (0.240 inch x 0.150 inch), the DPX-2 is a low cost, high
performance diplexer. The unique design offers high pass/low pass
signal routing/multiplexing with excellent isolation. Passband insertion
loss is less than 1 dB with rejection typically exceeding 25 dB.
Besides being ideal for transmitter/receiver applications, the DPX-2
can also be used as an excellent non-reflective low pass (or high
pass) filter for systems requiring broadband 50Ω impedance match
(such as mixers).
215 Vineyard Court, Morgan Hill, CA 95037 | Ph: 408.778.4200 | Fax 408.778.4300 | info@markimicrowave.com
11/16/11
DIPLEXER DPX-2
Page 2
Fig. 1. Schematic Diagram
Typical Performance
Fig. 2. Insertion loss.
Fig. 3. Return loss.
Fig. 4. Isolation.
Fig. 5. Common port return loss.
Marki Microwave reserves the right to make changes to the product(s) or information contained herein without notice. Marki Microwave makes no
warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Marki Microwave assume any liability
whatsoever arising out of the use of or application of any product.
-40
-35
-30
-25
-20
-15
-10
-5
0
0 1 2 3 4 5 6 7
Insertion Loss (dB)
Frequency (GHz)
Low Pass
High Pass
-25
-20
-15
-10
-5
0
0 1 2 3 4 5 6 7
Return Loss (dB)
Frequency (GHz)
Low Pass
High Pass
-40
-35
-30
-25
-20
-15
-10
-5
0
0 1 2 3 4 5 6 7
Isolation (dB)
Frequency (GHz)
-25
-20
-15
-10
-5
0
0 1 2 3 4 5 6 7
Common Port Return Loss (dB)
Frequency (GHz)
Power
Band
LOW
High
Pass
Low
Pass
Band
HIGH
Band
LOW
Band
HIGH
Common
f
CROSSOVER
f
f
f
Power
Power