Mi-Wave · 5G Millimeter-Wave Amplifiers
5G Power Amplifiers
High-power Ka-band output from the 955 series modules built for 5G FR2 millimeter-wave systems
The Mi-Wave 955 series 5G power amplifiers deliver high-gain, linear amplification across Ka-band (26 GHz to 40 GHz) with saturated output up to +43 dBm (Psat). Modules come with coaxial or waveguide interfaces and are used in 5G base station testing, beamforming array development and wireless backhaul links. Evencat is an authorized distributor in Taiwan and provides technical support and specification advice.
Overview
The Mi-Wave 955 series 5G power amplifiers are built for the transmit chain of modern millimeter-wave radios, covering 26 GHz to 40 GHz in Ka-band and the full 5G FR2 allocation. Small-signal gain runs from 30 dB to 45 dB and saturated output (Psat) from +33 dBm to +43 dBm, spanning needs from a small CPE to a macro base station. Each model is offered with a 2.92 mm K female coaxial connector or a WR-28 waveguide with UG-599/U flange, so it fits either a bench or a waveguide system. Gain flatness and low spurious output are held across the band, which lets high-order QAM signals pass with acceptable ACLR and EVM. Before ordering, check the sub-band (26 to 28, 28 to 29, 32 to 36 GHz or the full 26 to 40 GHz), the bias supply, which ranges from low-voltage DC to line AC, and whether you need the driver-class 955AF or a saturated-power 955A. Applications include 5G FR2 base station and small cell testing, beamforming and phased array development, wireless backhaul and satellite uplinks.

Key specifications
| Series | 955A / 955AF series |
|---|---|
| Frequency range | 26 GHz to 40 GHz (Ka-band, 5G FR2) |
| Small-signal gain | 30 dB to 45 dB (by model) |
| Saturated output power (Psat) | +33 dBm to +43 dBm (by model) |
| 1 dB compression point (P1dB) | +31 dBm typ (955AF-30/31/KFH); +32 dBm typ (955A-28/29/30/36/KFH) |
| Maximum RF input | +15 dBm max (waveguide models); 0 dBm max (coaxial 955AF) |
| VSWR (input / output) | 2.0:1 |
| Bias supply | +6 V typ / +8 V max (coaxial models); +21 V to +24 V (Ka high-power models); 100 to 230 VAC 50/60 Hz (waveguide models) |
| RF interface | 2.92 mm K female coaxial or WR-28 waveguide with UG-599/U flange |
| Housing | Aluminum, gold plated |
| Operating temperature | Case temperature up to +60 °C (955AF-30/31/KFH) |
| Application band | 5G FR2 / Ka-band (26 to 40 GHz) |
Features
High output power
Saturated output up to +43 dBm covers 5G transmit chains from small cells to backhaul links with demanding power budgets.
High gain with flat response
Small-signal gain of 30 dB to 45 dB with flat gain across the band keeps high-order modulation stable through the amplifier.
Full 5G FR2 coverage
26 GHz to 40 GHz Ka-band coverage takes in the 3GPP FR2 bands, including n257, n258, n260 and n261.
Two interface styles
A 2.92 mm K coaxial connector or a WR-28 waveguide with UG-599/U flange, so the module fits lab benches and waveguide-based systems alike.
Linearity and spectral cleanliness
Designed for low spurious output and good linearity, keeping EVM and ACLR within 5G spectrum mask limits.
Wide application range
5G base station testing, phased array beamforming development, wireless backhaul, satellite uplinks and electronic warfare systems.
Typical applications

5G base stations
Millimeter-wave small cell and beamforming array validation
Engineers deploying small cells or phased array antennas in the 26 to 40 GHz FR2 band need a high-gain, linear power amplifier in the transmit chain to meet 5G NR EVM and ACLR limits. The 955 series offers over 40 dB gain and more than 41 dBm output, and can be integrated directly into a beamforming module so the array's EIRP reaches commercial targets.
RF measurement
Driving millimeter-wave component characterization benches
When a lab measures S-parameters and harmonic distortion of mixers, filters or antennas at millimeter-wave frequencies, a stable driver amplifier after the source makes up the insertion loss of frequency extension modules and keeps the stimulus at a usable level. The 955 series' known gain flatness and output impedance make the setup repeatable and traceable, shortening calibration time.


Defense and aerospace
Electronic warfare simulation and satellite uplink testing
Defense integrators and ground station engineers test transmit chains at Ka-band and above: jamming simulation, telemetry link verification and power back-off behavior of uplink amplifiers. Mi-Wave millimeter-wave power amplifiers hold stable bias and consistent performance over temperature, suiting rack-mounted lab equipment and ground station RF front ends alike.
Options and configuration
Tick the band, output interface and bias supply your application needs; we compile the list and carry it into the quote form.
Band and model
RF connector and flange
Bias supply
Downloads
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