4 Way RF Power Divider, Combiner, Splitter
Type N, SMA, TNC, BNC, 350-6000 MHz

INSTOCK four way power divider, power combiners are available with Type N, SMA, TNC, BNC, and QMA connector options. All models are optimized for broadband operation with frequency ranges from 350 MHz to 6 GHz with unsurpassed electrical performance. These Wilkinson hybrid, 4 way, power divider, power combiners are reciprocal units that divide and combine signals with equal facility. Their microstrip construction will pass DC current to all ports for use in active systems. DC blocking and current steering models are also available.

4 Way Power Divider Combiner Specifications

Model No. Coaxial Connectors Frequency Range (MHz) Insertion Loss (above 6.02 dB) Amplitude Balance Phase Balance Isolation Input VSWR Output VSWR
PD1140 SMA 698-2700 0.8 dB max 0.2 dB max 4° max 22 dB min 1.25:1 max 1.15:1 max
PD1040 N Type 698-2700 0.8 dB max 0.3 dB max 4° max 22 dB min 1.30:1 max 1.15:1 max
PD2140 SMA 698-2700 0.8 dB max 0.2 dB max 4° max 22 dB min 1.25:1 max 1.15:1 max
PD2204 SMA+N 698-2700 0.8 dB max 0.2 dB max 4° max 22 dB min 1.25:1 max 1.15:1 max
PD2040 N Type 698-2700 0.8 dB max 0.3 dB max 4° max 22 dB min 1.25:1 max 1.15:1 max
PD2804 N Type 698-2700 0.5 dB max 0.2 dB max 2° max 22 dB min 1.30:1 max 1.15:1 max
GPS410 SMA 1000-2000 0.6 dB max 0.3 dB max 3° max 22 dB min 1.30:1 max 1.20:1 max
GPS411 SMA 1000-2000 0.6 dB max 0.3 dB max 3° max 22 dB min 1.35:1 max 1.20:1 max
GPS412 SMA 1000-2000 0.6 dB max 0.3 dB max 3° max 22 dB min 1.30:1 max 1.20:1 max
GPS430 SMA+N 1000-2000 0.6 dB max 0.3 dB max 3° max 22 dB min 1.30:1 max 1.20:1 max
GPS400 N Type 1000-2000 0.6 dB max 0.3 dB max 3° max 22 dB min 1.30:1 max 1.20:1 max
GPS401 N Type 1000-2000 0.6 dB max 0.3 dB max 3° max 22 dB min 1.35:1 max 1.20:1 max
GPS402 N Type 1000-2000 0.6 dB max 0.3 dB max 3° max 22 dB min 1.30:1 max 1.20:1 max
GPS420 TNC 1000-2000 0.6 dB max 0.3 dB max 3° max 22 dB min 1.30:1 max 1.20:1 max
GPS421 TNC 1000-2000 0.6 dB max 0.3 dB max 3° max 22 dB min 1.35:1 max 1.20:1 max
GPS450 BNC 1000-2000 0.6 dB max 0.3 dB max 3° max 22 dB min 1.30:1 max 1.20:1 max
PD5140 SMA 698-2700 0.8 dB max 0.2 dB max 4° max 22 dB min 1.25:1 max 1.20:1 max
PD5141 SMA 698-2700 0.8 dB max 0.3 dB max 4° max 22 dB min 1.30:1 max 1.20:1 max
PD5142 SMA 698-2700 0.8 dB max 0.2 dB max 4° max 22 dB min 1.25:1 max 1.20:1 max
PD5143 SMA 698-2700 0.8 dB max 0.3 dB max 4° max 22 dB min 1.30:1 max 1.20:1 max
PD5040 N Type 698-2700 0.8 dB max 0.3 dB max 4° max 22 dB min 1.25:1 max 1.20:1 max
PD5041 N Type 698-2700 0.8 dB max 0.3 dB max 4° max 22 dB min 1.30:1 max 1.20:1 max
PD5042 N Type 698-2700 0.8 dB max 0.3 dB max 4° max 22 dB min 1.30:1 max 1.15:1 max
PD5043 N Type 698-2700 0.8 dB max 0.3 dB max 4° max 22 dB min 1.30:1 max 1.15:1 max
PD5940 TNC 698-2700 0.8 dB max 0.2 dB max 4° max 22 dB min 1.25:1 max 1.20:1 max
PD5540 BNC 698-2700 0.8 dB max 0.3 dB max 4° max 22 dB min 1.25:1 max 1.20:1 max
PD2578 SMA 2400-6000 1.0 dB max 0.3 dB max 5° max 20 dB min 1.45:1 max 1.30:1 max
PD2478 N Type 2400-6000 1.0 dB max 0.3 dB max 5° max 20 dB min 1.45:1 max 1.30:1 max
PD2440 SMA 350-1000 1.0 dB max 0.3 dB max 5° max 22 dB min 1.30:1 max 1.15:1 max
PD2340 N Type 350-1000 1.0 dB max 0.3 dB max 5° max 22 dB min 1.30:1 max 1.15:1 max
PD2541 BNC 350-1000 1.0 dB max 0.3 dB max 5° max 22 dB min 1.30:1 max 1.15:1 max
PD2941 TNC 350-1000 1.0 dB max 0.3 dB max 5° max 22 dB min 1.30:1 max 1.15:1 max
PD2141 SMA 698-2700 0.8 dB max 0.3 dB max 4° max 22 dB min 1.30:1 max 1.15:1 max
PD2041 N Type 698-2700 0.8 dB max 0.3 dB max 4° max 22 dB min 1.25:1 max 1.15:1 max
PD2943 TNC 698-2700 0.8 dB max 0.3 dB max 4° max 22 dB min 1.30:1 max 1.15:1 max
PD2940 TNC 698-2700 0.8 dB max 0.2 dB max 4° max 22 dB min 1.25:1 max 1.15:1 max
PD2540 BNC 698-2700 0.8 dB max 0.2 dB max 4° max 22 dB min 1.25:1 max 1.15:1 max
PD2740 QMA 698-2700 0.8 dB max 0.2 dB max 4° max 22 dB min 1.25:1 max 1.15:1 max
RP2140 RP-SMA 698-2700 0.8 dB max 0.2 dB max 4° max 22 dB min 1.25:1 max 1.15:1 max

4 Way Power Divider Combiner Application Note

INSTOCK four way power divider, power combiners are available with two connector styles, type-N female (jack) and SMA female (jack). Both models are optimized for broadband operation covering the frequency range from 0.698 to 2.700 GHz with unsurpassed electrical performance. These Wilkinson hybrid, 4 way, power divider, power combiners are reciprocal units that divide and combine signals with equal facility. Their microstrip construction will pass DC current to all ports for use in active systems.

In power dividing applications, the input signal is equally split into four output signals, each down 6 dB from the incident due to the 1:4 power division. No power is actually lost from this power split; it is just allocated into four amplitude and phase matched signals, thus a so called 6 dB insertion loss. True insertion loss of less than 0.8 dB max @ 2.7 GHz will be found at the output ports resulting from dissipation of small amounts of RF & microwave energy within the connectors and microstrip circuit. The output signals are isolated from each other by 22 dB minimum through the use of resistors that dissipate any power reflected back to the circuit caused by unequal or unbalanced output loads. The 40 watt maximum power rating of these power dividers is applicable when connected to matched output load VSWR of 1.2:1 or better. This maximum power rating must be reduced when load VSWR's increase and are unbalanced or out-of-phase with respect to one another. See Power Divider Input Ratings Table for additional guidelines.

The situation with power combining is a bit more complex. While it is possible to sum four input signals with no loss, this can only be accomplished if the signals are coherent and identical in phase and amplitude. Such a case would be the four way power splitting of a signal which is then recombined after amplification, provided the amplified signals are phase locked together. But outside this case, or cases of pure sine signals, or CW signals without any transmitted info, the combining of four non-coherent signals will result in a minimum 6 dB loss (1/4th power ratio) plus the true insertion loss of the power combiner. Worst-case combining loss occurs with coherent signals 180° out-of-phase, where all power is dissipated. Because the combining loss is dissipated through the isolation resistors, the power handling and heat transfer capabilities of these resistors ultimately determines the maximum combiner power rating. See 4 Way Power Combiner Input Ratings Table (left) for more information.

Contact INSTOCK Wireless for unique solutions to your high power combiner requirements.

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