introduction：
420 NJ+SBA 9113 are all automotive electronic immunity test antennas produced by Schwarzbeck in Germany and authorized for sale by EUTTEST.
Meet the standards: RI115 automotive electronic parts test (Ford EMC CS 2009), ISO11452-9 test.
The typical application of SBA 9113 and 420NJ components is to test the immunity of components in the automotive industry, medical, scientific or aerospace environments. The immunity of handheld transmitters is an important issue. Usually, the surface of the EUT is divided into a grid width (for example, 10 cm). While observing the working state of the EUT at each grid point, the antenna is tested for the two orthogonal polarizations and the required field intensity. A typical antenna-to-EUT spacing is 5 mm or 50 mm, which is provided by the corresponding partition of the antenna element.
420 NJ + SBA 9113 technical parameters：
| Frequency range | 360MHz-2.7GHz |
| Oscillator length | 240mm |
| Oscillator width | 109mm |
| Test spacing | 5mm
50mm |
| Agent | Euttest.com |
| SWR | 1-4 |
| Barron | 1：1 |
| Maximum input power | 20W |
| weight | 135g |
Test application of SBA 9113 + 420NJ：
The design of the 420NJ component of SBA 9113 is due to the sharp increase in mobile phones and handheld transmitters in the past few years. Various disturbances have created a demand for new and more effective immune testing methods, which are well repeatable. The existing radiation immunity test, the test distance is usually between 1 m and 3 m, requires an expensive power amplifier. Several investigations around mobile phones and handheld transmitters have shown that this kind of device can produce very high field intensity at a power of about 100 V/M. The existing immune testing methods have extremely high efforts to produce on-site intensity levels, as mentioned earlier. Thanks to the special shape of the 420NJ element, the two can be achieved at the same time, with a huge bandwidth and a very close distance to the EuT surface (usually 5 mm). This is an economical way to produce a very high field advantage with a medium-power field length. 10 to 20 watts. The large bandwidth of the radiating element allows fast broadband testing without any antenna replacement, so even country-specific frequency bands can be tested without additional effort.
420NJ+SBA9113 can be used for 360MHz-2.7GHz, please contact EUTTEST for field strength distribution maps for other frequencies.
