Introduction：
The STLP 9128 C Stacked Log Periodic Antenna is a high power output antenna manufactured by Schwarzbeck, Germany and authorized for sale by EUTTEST in Shenzhen, China. This antenna supports frequencies up to 4GHz and up to 3kW forward power input.
Stacked log-periodic antenna is composed of two normal log-periodic antennas, normal log-periodic antennas have the product characteristics of flat gain and low SWR, after using two log-periodic antennas in stacked design, it helps to focus the directional map of the H-plane to a certain extent, which typically improves the gain. The gain will be increased by 2-3 dB compared to a normal LPDA, which is especially important for immunity testing where maximum field strength and good field uniformity are required. The E-plane and H-plane of this antenna have almost the same 3 dB flap width, thus providing a good radiating area while minimizing the effects of ground reflections. In addition, it has excellent cross-polarization rejection.
Technical parameters：
Product Specification Sheet:
“Reminder: swipe tables left and right”3 kW (intermittent)
2 kW (intermittent)
July 2025 has launched the new STLP 9128 C 13/30 2GHz immunity test log-periodic antenna, support maximum input power 8kW, welcome to contact EUTTEST for purchase.
Option: [13-30 connector] use frequency limited to 2500 MHz, but higher powers up to 8 kW can be achieved, includes adapter similar to AA 9202
Graph of related technical parameters：
This antenna is dedicated to radiated immunity testing, and we will show a graph of the gain-related curve data below.
Antenna Gain Graph
Plot of input power vs. electric field strength - 1 meter test distance
Related equipment:
You can also select more stacked logarithmic periodic antennas manufactured by schwarzbeck in the equipment list below:
- STLP 9128 D - Stacked Log Periodic Antenna 65MHz-4GHz
- STLP 9128 D special - Stacked Log Periodic Antenna 70MHz-4GHz
- STLP 9128 E - Stacked Log Periodic Antenna 65MHz-3GHz
- STLP 9128 E special - Stacked Log Periodic Antenna 80MHz-2.7GHz
- STLP 9128 F - Stacked Log Periodic Antenna 55MHz-3GHz
- STLP 9129 - Stacked Log Periodic Antenna 70MHz-10GHz
- STLP 9129 special - Stacked Log Periodic Antenna 80MHz-10GHz
- STLP 9148 - Stacked Log Periodic Antenna 700MHz-20GHz
- STLP 9149 - Stacked Log Periodic Antennas 600 MHz-10.5 GHz
- STLP 100-500 - Stacked Double Log Periodic Antenna 75 MHz - 550 MHz
EUTTEST is an official authorized distributor of SCHWARZBECK, whose full official name is: SCHWARZBECK MESS - ELEKTRONIK OHG
Ltd. is authorized by schwarzbeck to sell all products in China and provide technical service for the products sold.
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