Coaxial Power Divider
Coaxial Power Divider distributes RF signals evenly across multiple output ports with excellent phase and amplitude balance. Used in antenna arrays, communication systems, RF distribution networks and microwave test platforms.
Precision Coaxial Power Dividers for Balanced Signal Distribution
AO Microwave’s high-precision coaxial power dividers are designed to split an input signal into multiple output channels with minimum loss. Housed in rugged, passivated aluminum or copper cavities, our dividers are constructed using Wilkinson microstrip or stripline networks printed on low-loss high-frequency laminates. Operating up to 40 GHz with standard 2-way, 4-way, and 8-way configurations, our dividers achieve low insertion losses (typically < 0.50 dB), an amplitude balance of < 0.20 dB, a phase tracking error of < 3.0°, and port-to-port isolation of > 20 dB across the band.
By utilizing precisely matched internal branch paths and high-grade chip isolation resistors, our power dividers ensure consistent, low-VSWR signal routing. They are critical for phased array antenna feeds, active transceiver networks, and multi-channel laboratory test configurations.
| Part No | Way | Frequency/GHz | Input VSWR (Max) | Output VSWR (Max) | IL/dB (Max) | Isolation/dB (Min) | Forward Power/W (Max) | Reverse Power/W (Max) | Connector Type |
|---|---|---|---|---|---|---|---|---|---|
| AO0.5G2G-2CPD30-SK | 2 Ways | 0.5-2 | 1.3 | 1.25 | 0.6 | 20 | 30 | 1 | SMA Female |
| AO0.5G18G-2CPD20-SK | 2 Ways | 0.5-18 | 1.7 | 1.5 | 1 | 16 | 20 | 1 | SMA Female |
| AO0.8G2.5G-2CPD30-SK | 2 Ways | 0.8-2.5 | 1.35 | 1.25 | 0.5 | 20 | 30 | 1 | SMA Female |
| AO1G2G-2CPD30-SK | 2 Ways | 1-2 | 1.25 | 1.2 | 0.35 | 20 | 30 | 1 | SMA Female |
| AO1G4G-2CPD30-SK | 2 Ways | 1-4 | 1.35 | 1.25 | 0.5 | 20 | 30 | 1 | SMA Female |
| AO1G8G-2CPD30-SK | 2 Ways | 1-8 | 1.4 | 1.35 | 1 | 20 | 30 | 1 | SMA Female |
| AO1G12.4G-2CPD30-SK | 2 Ways | 1-12.4 | 1.5 | 1.4 | 1.5 | 16 | 30 | 1 | SMA Female |
| AO1G18G-2CPD30-SK | 2 Ways | 1-18 | 1.6 | 1.5 | 1.2 | 16 | 30 | 1 | SMA Female |
| AO1G26.5G-2CPD20-2.92K | 2 Ways | 1-26.5 | 1.8 | 1.7 | 1.5 | 16 | 20 | 0.5 | 2.92mm Female |
| AO1G40G-2CPD20-2.92K | 2 Ways | 1-40 | 2 | 1.8 | 2.2 | 15 | 20 | 0.5 | 2.92mm Female |
| AO2G4G-2CPD30-SK | 2 Ways | 2-4 | 1.3 | 1.25 | 0.4 | 20 | 30 | 1 | SMA Female |
| AO2G8G-2CPD30-SK | 2 Ways | 2-8 | 1.4 | 1.3 | 0.6 | 20 | 30 | 1 | SMA Female |
| AO2G12G-2CPD20-SK | 2 Ways | 2-12 | 1.4 | 1.3 | 0.8 | 16 | 20 | 1 | SMA Female |
| AO2G18G-2CPD30-SK | 2 Ways | 2-18 | 1.5 | 1.5 | 1 | 16 | 30 | 1 | SMA Female |
| AO2G22G-2CPD30-SK | 2 Ways | 2-22 | 1.6 | 1.5 | 1.2 | 16 | 30 | 0.5 | SMA Female |
| AO2G40G-2CPD20-2.92K | 2 Ways | 2-40 | 1.8 | 1.5 | 1.8 | 16 | 20 | 0.5 | 2.92mm Female |
| AO4G8G-2CPD30-SK | 2 Ways | 4-8 | 1.3 | 1.2 | 0.5 | 20 | 30 | 2 | SMA Female |
| AO4G18G-2CPD30-SK | 2 Ways | 4-18 | 1.6 | 1.5 | 0.8 | 18 | 30 | 1 | SMA Female |
| AO6G18G-2CPD30-SK | 2 Ways | 6-18 | 1.6 | 1.5 | 1 | 18 | 30 | 1 | SMA Female |
| AO6G40G-2CPD20-2.92K | 2 Ways | 6-40 | 1.7 | 1.5 | 1.3 | 16 | 20 | 0.5 | 2.92mm Female |
| AO10G43.3G-2CPD10-2.92K | 2 Ways | 10-43.3 | 1.7 | 1.6 | 1.3 | 16 | 10 | 0.5 | 2.92mm Female |
| AO20G27G-2CPD10-2.92K | 2 Ways | 20-27 | 1.6 | 1.5 | 1 | 16 | 10 | 1 | 2.92mm Female |
| AO18G-2CPD1-SK | 2 Ways | DC-18 | 1.3 | 2 | 1.5 | 10 | 1 | 0.1 | SMA Female |
| AO26.5G-2CPD1-SK | 2 Ways | DC-26.5 | 1.5 | 2.5 | 1.5 | 10 | 1 | 0.1 | SMA Female |
| AO40G-2CPD1-2.92K | 2 Ways | DC-40 | 1.5 | 2.5 | 2 | 10 | 1 | 0.1 | 2.92mm Female |
| AO50G-2CPD1-2.4K | 2 Ways | DC-50 | 1.6 | 2.5 | 2 | 10 | 1 | 0.1 | 2.4mm Female |
| AO50G-2CPD1-2.92K | 2 Ways | DC-50 | 1.6 | 1.6 | 2.5 | 10 | 1 | 0.1 | 2.92mm Female |
| AO67G-2CPD1-1.85K | 2 Ways | DC-67 | 1.8 | 2.5 | 2.5 | 10 | 1 | 0.1 | 1.85mm Female |
| AO0.5G3G-3CPD30-SK | 3 Ways | 0.5-3 | 1.5 | 1.3 | 1.3 | 20 | 30 | 2 | SMA Female |
| AO0.5G2G-3CPD30-SK | 3 Ways | 0.5-2 | 1.5 | 1.3 | 1 | 20 | 30 | 1 | SMA Female |
| AO0.8G2.5G-3CPD30-SK | 3 Ways | 0.8-2.5 | 1.5 | 1.3 | 0.8 | 20 | 30 | 1 | SMA Female |
| AO1G2G-3CPD30-SK | 3 Ways | 1-2 | 1.35 | 1.3 | 0.7 | 20 | 30 | 1 | SMA Female |
| AO1G18G-3CPD20-SK | 3 Ways | 1-18 | 1.7 | 1.6 | 1.5 | 17 | 20 | 0.5 | SMA Female |
| AO2G4G-3CPD30-SK | 3 Ways | 2-4 | 1.6 | 1.5 | 0.7 | 20 | 30 | 1 | SMA Female |
| AO2G8G-3CPD30-SK | 3 Ways | 2-8 | 1.4 | 1.3 | 1 | 20 | 30 | 1 | SMA Female |
| AO2G18G-3CPD20-SK | 3 Ways | 2-18 | 1.7 | 1.6 | 1.5 | 16 | 20 | 0.5 | SMA Female |
| AO4G8G-3CPD30-SK | 3 Ways | 4-8 | 1.4 | 1.3 | 0.6 | 18 | 30 | 1 | SMA Female |
| AO6G18G-3CPD30-SK | 3 Ways | 6-18 | 1.8 | 1.6 | 1.2 | 18 | 30 | 1 | SMA Female |
| AO0.5G2G-4CPD30-SK | 4 Ways | 0.5-2 | 1.5 | 1.4 | 1 | 20 | 30 | 1 | SMA Female |
| AO0.5G3G-4CPD30-SK | 4 Ways | 0.5-3 | 1.6 | 1.4 | 1.4 | 18 | 30 | 1 | SMA Female |
| AO0.5G6G-4CPD30-SK | 4 Ways | 0.5-6 | 1.6 | 1.4 | 1.8 | 18 | 30 | 1 | SMA Female |
| AO0.5G18G-4CPD30-SK | 4 Ways | 0.5-18 | 2.1 | 1.7 | 2.5 | 16 | 30 | 0.5 | SMA Female |
| AO0.8G2.5G-4CPD30-SK | 4 Ways | 0.8-2.5 | 1.35 | 1.25 | 0.7 | 20 | 30 | 1 | SMA Female |
| AO1G2G-4CPD30-SK | 4 Ways | 1-2 | 1.3 | 1.25 | 0.6 | 20 | 30 | 1 | SMA Female |
| AO1G4G-4CPD30-SK | 4 Ways | 1-4 | 1.35 | 1.3 | 0.8 | 20 | 30 | 1 | SMA Female |
| AO1G8G-4CPD30-SK | 4 Ways | 1-8 | 1.45 | 1.35 | 1.6 | 20 | 30 | 1 | SMA Female |
| AO1G12.4G-4CPD30-SK | 4 Ways | 1-12.4 | 1.6 | 1.4 | 2.8 | 16 | 30 | 0.5 | SMA Female |
| AO1G18G-4CPD30-SK | 4 Ways | 1-18 | 1.7 | 1.6 | 2.8 | 16 | 30 | 1 | SMA Female |
| AO2G4G-4CPD30-SK | 4 Ways | 2-4 | 1.35 | 1.3 | 0.6 | 20 | 30 | 1 | SMA Female |
| AO2G8G-4CPD30-SK | 4 Ways | 2-8 | 1.45 | 1.3 | 1.2 | 20 | 30 | 1 | SMA Female |
| AO2G18G-4CPD30-SK | 4 Ways | 2-18 | 1.65 | 1.6 | 2 | 16 | 30 | 1 | SMA Female |
| AO2G26G-4CPD20-2.92K | 4 Ways | 2-26 | 2 | 1.8 | 2.25 | 15 | 20 | 1 | 2.92mm Female |
| AO2G40G-4CPD20-2.92K | 4 Ways | 2-40 | 2.2 | 1.6 | 3 | 15 | 20 | 0.5 | 2.92mm Female |
| AO4G8G-4CPD30-SK | 4 Ways | 4-8 | 1.35 | 1.3 | 0.8 | 20 | 30 | 1 | SMA Female |
| AO4G18G-4CPD30-SK | 4 Ways | 4-18 | 1.6 | 1.5 | 1.3 | 16 | 30 | 1 | SMA Female |
| AO6G18G-4CPD30-SK | 4 Ways | 6-18 | 1.6 | 1.5 | 1 | 18 | 30 | 1 | SMA Female |
| AO6G40G-4CPD20-2.92K | 4 Ways | 6-40 | 2 | 1.6 | 2.2 | 15 | 20 | 1 | 2.92mm Female |
| AO18G40G-4CPD20-2.92K | 4 Ways | 18-40 | 2 | 1.6 | 2.2 | 15 | 20 | 1 | 2.92mm Female |
| AO0.5G2G-6CPD30-SK | 6 Ways | 0.5-2 | 1.5 | 1.35 | 1.5 | 20 | 30 | 1 | SMA Female |
| AO0.5G6G-6CPD30-SK | 6 Ways | 0.5-6 | 1.65 | 1.4 | 3 | 16 | 30 | 1 | SMA Female |
| AO0.8G2.5G-6CPD30-SK | 6 Ways | 0.8-2.5 | 1.5 | 1.3 | 1.2 | 20 | 30 | 1 | SMA Female |
| AO1G4G-6CPD30-SK | 6 Ways | 1-4 | 1.4 | 1.3 | 1.5 | 20 | 30 | 1 | SMA Female |
| AO2G4G-6CPD30-SK | 6 Ways | 2-4 | 1.5 | 1.4 | 1 | 20 | 30 | 1 | SMA Female |
| AO2G8G-6CPD30-SK | 6 Ways | 2-8 | 1.4 | 1.3 | 1.5 | 18 | 30 | 1 | SMA Female |
| AO6G18G-6CPD30-SK | 6 Ways | 6-18 | 1.8 | 1.5 | 1.8 | 16 | 30 | 1 | SMA Female |
| AO0.2G0.8G-8CPD30-SK | 8 Ways | 0.2-0.8 | 1.6 | 1.5 | 1.5 | 20 | 30 | / | SMA Female |
| AO0.5G2G-8CPD30-SK | 8 Ways | 0.5-2 | 1.5 | 1.4 | 1.5 | 20 | 30 | 1 | SMA Female |
| AO0.5G6G-8CPD30-SK | 8 Ways | 0.5-6 | 1.6 | 1.4 | 2.7 | 18 | 30 | 1 | SMA Female |
| AO0.5G18G-8CPD20-SK | 8 Ways | 0.5-18 | 2 | 1.7 | 6.5 | 13 | 20 | 1 | SMA Female |
| AO0.8G2.5G-8CPD30-SK | 8 Ways | 0.8-2.5 | 1.45 | 1.3 | 1.3 | 20 | 30 | 1 | SMA Female |
| AO1G2G-8CPD30-SK | 8 Ways | 1-2 | 1.35 | 1.25 | 1 | 20 | 30 | 1 | SMA Female |
| AO1G4G-8CPD30-SK | 8 Ways | 1-4 | 1.5 | 1.3 | 1.5 | 20 | 30 | 1 | SMA Female |
| AO1G8G-8CPD30-SK | 8 Ways | 1-8 | 1.6 | 1.4 | 2.8 | 18 | 30 | 1 | SMA Female |
| AO1G12.4G-8CPD20-SK | 8 Ways | 1-12.4 | 1.8 | 1.5 | 4 | 15 | 20 | 1 | SMA Female |
| AO1G18G-8CPD20-SK | 8 Ways | 1-18 | 2 | 1.8 | 4 | 15 | 20 | 1 | SMA Female |
| AO2G4G-8CPD30-SK | 8 Ways | 2-4 | 1.4 | 1.3 | 0.8 | 20 | 30 | 1 | SMA Female |
| AO2G8G-8CPD30-SK | 8 Ways | 2-8 | 1.6 | 1.3 | 1.8 | 20 | 30 | 1 | SMA Female |
| AO2G18G-8CPD30-SK | 8 Ways | 2-18 | 1.9 | 1.6 | 3.5 | 15 | 30 | 1 | SMA Female |
| AO4G8G-8CPD30-SK | 8 Ways | 4-8 | 1.6 | 1.35 | 1.2 | 18 | 30 | 1 | SMA Female |
| AO4G18G-8CPD30-SK | 8 Ways | 4-18 | 1.8 | 1.5 | 1.8 | 16 | 30 | 1 | SMA Female |
| AO6G18G-8CPD30-SK | 8 Ways | 6-18 | 1.8 | 1.5 | 1.8 | 18 | 30 | 1 | SMA Female |
| AO0.5G40G-8CPD20-2.92K | 8 Ways | 0.5-40 | 1.8 | 1.8 | 11 | 15 | 20 | / | 2.92mm Female |
| AO6G40G-8CPD20-2.92K | 8 Ways | 6-40 | 2.1 | 1.9 | 2.5 | 15 | 20 | / | 2.92mm Female |
| AO4G8G-9CPD20-SK | 9 Ways | 4-8 | 1.7 | 1.5 | 2 | 16 | 20 | / | SMA Female |
| AO0.4G2G-12CPD20-SK | 12 Ways | 0.4-2 | 1.7 | 1.5 | 2.5 | 16 | 20 | / | SMA Female |
| AO2G8G-12CPD20-SK | 12 Ways | 2-8 | 1.8 | 1.5 | 2.2 | 18 | 20 | / | SMA Female |
| AO0.5G6G-16CPD20-SK | 16 Ways | 0.5-6 | 2 | 1.5 | 3.5 | 18 | 20 | / | SMA Female |
| AO0.8G2.5G-16CPD20-SK | 16 Ways | 0.8-2.5 | 1.5 | 1.3 | 1.7 | 18 | 20 | / | SMA Female |
| AO1G12.4G-16CPD20-SK | 16 Ways | 1-12.4 | 1.8 | 1.6 | 5 | 15 | 20 | / | SMA Female |
| AO2G4G-16CPD30-SK | 16 Ways | 2-4 | 1.6 | 1.4 | 1.2 | 18 | 30 | / | SMA Female |
| AO4G8G-16CPD20-SK | 16 Ways | 4-8 | 1.7 | 1.5 | 1.5 | 18 | 20 | / | SMA Female |
Understanding Wilkinson Design & Port Isolation
Coaxial power dividers often utilize Wilkinson microstrip topologies to split signals. When a signal enters the input port, it is split equally across two quarter-wavelength transmission lines, which are bridged at the outputs by a balancing resistor.
Under balanced conditions (where the output loads are identical in phase and amplitude), no current flows across this resistor, keeping insertion losses low. However, if the output ports are mismatched, the unbalanced power is dissipated across this resistor, providing high port-to-port isolation. AO Microwave utilizes high-performance thin-film chip isolation resistors on alumina substrates, ensuring stable isolation (typically > 20 dB) and low VSWR across the band.
Target Applications & Operational Advantages
By providing balanced power splitting with low insertion loss, our coaxial power dividers deliver critical performance in active systems:
Active Phased Array Antennas
Function: Distributes a single transmitter source equally to multiple antenna element channels.
Advantage: Exceptional amplitude balance (±0.2 dB) and phase tracking (±3°) ensure highly precise and repeatable antenna beamforming.
Multi-Port Laboratory Test Setups
Function: Distributes high-frequency test signals to multiple receiver channels or devices under test (DUT).
Advantage: High port-to-port isolation (>20 dB) prevents reflections from one mismatched DUT from leaking into and corrupting neighboring test paths.
SSPA Combining Networks
Function: Splits input signals to feed multiple parallel SSPA channels before high-power combined output.
Advantage: Low insertion loss maximizes system efficiency, and stable port matching maintains LNA sensitivity.
Coaxial Power Divider FAQs
Need high-performance Coaxial Power Dividers?
Specify your connector interface (SMA/2.92mm/2.4mm), configuration (2-way/4-way/8-way), average power, and frequency range — we'll quote in 24 hours.
