Test Fixture Shielded fixture for high frequency and radio applications.

HF-High-Frequency fixture


Our sophisticated test concept for especially sensitive assembly groups.

Special rules apply when it comes to checking and testing high-frequency and radio assembly groups. Here it is a question of reliably shielding the devices to be tested against radiation interference from their surroundings. At the same time these tests must not be allowed to affect the surroundings themselves.

high frequency fixture atxOur electromagnetically shielded MMIHF fixture for high-frequency applications offers you the perfect solution. It enables you to carry out in-depth testing of sensitive, highly sensitive and transmitting assembly groups – even those consisting of a combination of transmitter and receiver, without risking consequences for your production environment. And of course without subjecting your delicate assembly groups to possible radiation interference from their surroundings.

In the MMIHF fixture by ATX the probe bed is shielded completely both above and below the probes by a Faraday cage made of aluminium. The opening lid also has reliable HF sealing. All measuring lines reach the exterior via filtered plugs. By simply closing the lid the assembly groups can be contacted simultaneously.ass:

The MMIHF is not just an innovative and technologically superior concept, it is also a simple, robust and functional solution on the basis of a low-cost standard kit. The pressure mechanism of our MEHF applies the tried-and-tested ME technology by ATX. The outstanding functionality and solidity of our mechanical fixtures is the basis for the unit's development and will offer you new dimensions in performance, load capacity and availability.

Test result of high frequency fixture from ATX

Our test results are worth to be mentioned. ATX invested a lot to meet the demands for a high-frequency fixture. We worked together closely with Frauenhoferinstitut IVI who confirmed our results.

frequency band application average attenuation
[GHz] [dB]
0,791 - 0,821 LTE (DL) 84
0,832 - 0,862 LTE (UL) 84
0,865 – 0,868 RFID 80
0,880 – 0,915 GSM 900 (UL) 94
0,925 – 0,960 GSM 900 (DL) 88
1,710 – 1,785 GSM 1800 (LTE (UL) 90
1,805 – 1,880 GSM 1800, LTE (DL) 81
1,880 – 1,900 DECT 79
1,920 – 1,980 UMTS (UL) 79
2,110 – 2,170 UMTS (DL) 83
2,400 – 2,4835 WLAN-1 82
2,400 – 2,500 ISM-Band 82
2,500 – 2,570 LTE (UL) 84
2,620 – 2,690 GLTE (DL) 80
3,410 - 3,594 WiMAX 71
5,150 - 5,725 WLAN-2 77
5,725 - 5,875 ISM-Band 64
5,850 - 5,925 WLAN-3 62