Introduction：
USLP 9143B is a logarithmic periodic antenna produced by Schwarzbeck, Germany and authorized by EUTTEST Shenzhen for sales and after-sales service. You can use this antenna for radiated immunity test and of course for radiated interference emission test.
Differences and similarities between antennas 9143B and 9143:
The following table is a comparison table of the parameters of two similar antenna models, please select the appropriate antenna for EMC test according to the test requirements.
| USLP 9143B | USLP 9143 | |
| having the same name | log-periodic antenna | log-periodic antenna |
| Tests use the same | radiant emission | radiant emission |
| Test radiated immunity by injecting 200W of power | Test radiated immunity by injecting 200W of power | |
| Different test frequencies | 180MHz-8GHz | 250MHz-8GHz |
| Different antenna oscillator lengths | 0.78 m (wider) | 0.55 m |
| The 3dB flap width varies | 45°-65° | 30°-80° (wider) |
Technical Parameters
| Antenna Model | USLP 9143B |
| manufacturer | Schwarzbeck |
| agent | Euttest |
| frequency of use | 180MHz-8GHz |
| gain | 5.8dBi; see Figure 1 below for details. |
| radiance factor | 11-44dB/m; see Figure 2 below for detailed data. |
| impedance | N-Type 50Ω |
| anterior-posterior ratio of radiation | >25 dB (> 500 MHz) |
| cross-polarization | >20 dB (180 MHz-2.5 GHz) |
| 3dB wave width - electric field | 45-65° |
| 3dB flap width - EMF | 90-120° |
| Maximum Input Power | 200 W (<500 MHz) 80 W (5 GHz) 50 W (7 GHz) |
| size | 778*885*60mm |
| weight | 1.2kg |
Related Technical Charts:
Figure 1: Gain Curve Graph
We will calibrate the antenna and issue the calibration data before shipment, we will send the complete data with the goods to the customer to use, and provide a brief introduction in Chinese.
Figure 2: Antenna coefficients for radiated emissions
