10–13 GHz 100W GaN Jammer Module for EMC & Test

This 10–13 GHz jammer module is a multi-octave GaN amplifier covering 10,000–13,000 MHz with 100 W typical saturated CW output. It is built for jamming, EMC, and test and measurement work where one module must cover a full 3 GHz band without retuning. GaN devices and chip-and-wire construction keep the power-to-volume ratio high in a 160 × 120 × 25 mm housing. Input and output are matched to 50 Ω, so integration is mainly DC, RF, cooling, and alarm wiring.

RF performance

At 0 dBm input, power gain is about 50 dB with ±1 dB flatness. Harmonics are -50 dBc at 100 W, and spurious signals are -60 dBc at PSAT. Efficiency is 22–30%. The module runs from 28 VDC with 8.2 A quiescent current; the table lists 20 A at 100 W output. Maximum input without damage is +10 dBm. For rated output, drive at 0 dBm and check the actual gain across the band. The 3 GHz instantaneous bandwidth is the main reason to choose this 10–13 GHz jammer module over a narrower lab amplifier.

Protection and control

The enable pin accepts TTL logic high (3.3 V) and is internally pulled low. The temperature alarm is LVTTL 0/+3.3 V. At +3.3 V, case temperature is above +85°C; the module shuts down and restarts automatically below +65°C. The current alarm is also LVTTL 0/+3.3 V. A sustained over-current above 16 A shuts the module down, and it will not restart until the user repowers it. The datasheet also adds reverse standing-wave detection that shuts down the amplifier for standing-wave protection. These alarm lines are easy to wire to a system controller, which matters in unattended jamming or EMC runs.

Mechanical and thermal notes

RF input is SMA female; RF output is N-K female. DC and control use a hybrid 7W2 mixed-contact D-sub male connector. The pinout is A1 VDD, A2 ground, 1 enable, 2 temperature alarm, 3 current alarm, 4 NC, and 5 ground. The housing has six Ø4.2 mm through-holes, weighs 1.0 kg typical, and requires an external heat-sink. Operating case temperature is -20°C to +50°C; storage is -25°C to +65°C at 95% non-condensing humidity. The absolute maximum load VSWR is listed as infinite at 100 W across all load phase and amplitude conditions, with reverse standing-wave shutdown for protection.

Integration advice

For a 10–13 GHz jammer module build, use a clean 28 VDC supply with headroom for the 20 A full-power draw. Mount the module on a heat-sink and keep airflow over the housing. Start at low input power, verify gain and alarm states, then raise drive. There is no internal modulator; use an external RF source. Analog scan speed is not applicable to this amplifier. Keep the enable line high only when the system is ready, and route the temperature and current alarms to the controller.