Power Splitter / Power Combiner

PD5580 - DC Blocking L-Band Splitter Combiner

8-Way, DC Block 7 Ports, BNC, 698-2700 MHz

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DC Blocking Power Divider Combiner, 8 Way, BNC Female
  • Wideband Frequency (698 - 2700 MHz)
  • Low Insertion Loss (0.6 dB avg)
  • High Port to Port Isolation (30 dB avg)
  • Excellent VSWR (1.15 : 1 avg)
  • 50 VDC maximum on DC block port
  • Tri Alloy BNC Female (Jack) 50 Ohm
8 Way Power Divider RF Input Ratings
Into Matched
Load VSWR's
In-Phase 180°
1.2 : 1 40 Watts 40 Watts
2.0 : 1 40 Watts 40 Watts
VSWR = infinity (open or short) 20 Watts 4 Watts
8 Way Power Combiner RF Input Ratings
Input Signals In-Phase 180°
Coherent 8 X 5 Watts 8 X 0.5 Watts
Non-Coherent 8 X 1 Watt
DC Blocking, L-Band BNC Splitter Combiner Outline Drawing.

DC Blocking L-Band Splitter
BNC Female, 698-2700 MHz

Mechanical Specifications
Connectors ……………  BNC Jack, 50 Ohm Coaxial
Body ……………………  Brass, Tri-Alloy Plate
Connector Pin …  Beryllium Copper, Gold Plate
Insulator ……………  PTFE, Virgin Electrical Grade
Housing …………………  Aluminum, Clear Chem Film
Weight ……………………  746 Grams

PD5580 - BNC Female L-Band Splitter Specifications

Frequency Range (MHz) Insertion Loss above 9.03 dB Amplitude
Isolation Input
698-2700 1.3 dB max 0.5 dB max 6° max 22 dB min 1.35 : 1 max 1.20 : 1 max

PD5580 - DC Blocking BNC Splitter Combiner Test Data

DC Blocking Power Divider, 8 Way, BNC Jack - Insertion Loss
Insertion Loss Test Sweep for Model PD5580 from INSTOCK Wireless.
DC Blocking Power Divider, 8 Way, BNC Jack - Isolation
Isolation Test Sweep for Model PD5580 from INSTOCK Wireless.
DC Blocking Power Divider, 8 Way, BNC Jack - VSWR
Input VSWR Test Sweep for Model PD5580 from INSTOCK Wireless. Output VSWR Test Sweep for Model PD5580 from INSTOCK Wireless.

Input Return Loss

Output Return Loss

PD5580 - Features & Benefits


PD5580 is a DC blocking, eight way, RF broadband, 50 ohm, power divider, power combiner furnished with BNC coaxial connectors. The passive Wilkinson design passes RF, 10 MHz and DC current through one port, typically for powering an active antenna, with the other ports blocking DC. Max voltage rating at the DC blocked ports is 50 VDC. All wireless band applications in the frequency range from 698 to 2700 MHz are covered with best in class RF performance. The RoHS compliant PD5580 is a bidirectional device capable of 40 W max microwave input power level in both power splitter and combiner apps. See 8 way power divider input rating tables for additional power handling info.


The heart of the unit is a precision designed and etched Wilkinson type microstrip circuit on a low loss, high frequency, dielectric substrate. Electrical performance is highlighted by 1.3 dB max insertion loss (above the 9.03 dB power split), 22 dB min isolation, 1.35:1 max input VSWR and 1.20:1 max output port VSWR. Equal power split and symmetry is displayed by 0.5 dB amplitude balance and 6 degrees phase balance. Narrow band RF performance over your frequency range may be even better. See 8 way power divider test sweeps for details.


Mechanical features include precision CNC, brass, 50 ohm BNC female coaxial connectors with tri alloy plating to insure tarnish resistance and low PIM operation. Connector pins are gold plated beryllium copper for reliability and low contact resistance. Virgin electrical grade PTFE support insulators captivate the contact pins enabling trouble free coaxial connector mating. Long term operation and superior shielding is assured by the rugged CNC machined aluminum housing with clear chemical film finish. Secure mounting is provided by four 0.125" diameter (3.18 mm) through holes. RoHS construction includes no-lead solder and a finish free of hexavalent chromium.


Housing dimensions are 7.98" wide by 2.98" deep by 0.88" high (202.7 x 75.7 x 22.2 mm). The BNC female (jack) connectors extend 0.61" (15.5 mm) from the housing. Operating temperature range is from -65°C to +85°C. Weight is 746 grams. See 8 way DC block splitter outline drawing for more information.


The PD5580 8-way, BNC-jack, DC blocking, power splitter combiner is ideal for a wide range of wireless radio frequency microwave applications on both transmit and receive sides, ranging from amplifier sharing & receiver combining to antenna splitting, and is deployed world wide in networks encompassing 700 MHz Public Safety Band, 800 MHz cellular, GSM 850, 900, 1800 & 1900, PCS 1900, 1 GHz to 2 GHz L-Band, GPS, W-CDMA-3G, UMTS, TETRA, RFID, IEEE802.11b/g, 2.45 GHz ISM, Wi Fi and 2.3 GHz & 2.5 GHz WiMAX.

Options / Additional Models

DC Block Eight Ports: Typically used in combining applications to prevent passing DC to sum or adjacent ports. PD5082

Standard RoHS Model: A standard RoHS compliant version of this eight way power combiner divider is available passing DC current through all ports. PD2580

GPS Splitter: 8-way GPS antenna signal splitter covering L1, L2, GLONASS and Galileo GNSS global navigation satellite system positioning frequency bands.

GPS850: Eight way GPS signal splitter, DC pass one port - providing a means to power an active GPS antenna - other ports DC blocked and furnished with a 200 ohm internal load to simulate antenna preamp current draw thus preventing the GPS receiver from sensing antenna fault.

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