Quiet Zone

Quiet Zone

 

According to Ref [9], Quiet Zone is the volume in any chamber in which a DUT is illuminated with nearly uniform amplitude and phase. Typical quiet zone specifications are 10 degrees of phase variation, ± 0.5 dB of amplitude ripple, and 1 dB of amplitude taper, which is the roll-off toward the edges of the quiet zone
 

Reference

 

[1] 3GPP TSG-RAN WG5 Adhoc Meeting#1 - R5-180013 : Signalling NR Testcases - OTA chamber requirements

[2] Near and far field (Wikipedia)

[3] Keysight Technologies - OTA Test for Millimeter-Wave 5G NR Devices and Systems (White Paper)

[4] 3GPP TSG-RAN WG4 Meeting #84 - R4-1708553 : Far field definition and proposal for alternate RF baseline with deterministic antenna array positioning

[5] 3GPP TSG RAN WG4 Meeting NR#2 - R4-1706617 : Center of Radiation Reference Point – Reference Definition for OTA Measurements of Phased Array Beamforming Patterns

[6] 3GPP TR 37.842 V13.2.0 (2017-03) - Radio Frequency (RF) requirement background for Active Antenna System (AAS) Base Station (BS)(Release 13)

[7] 3GPP TSG-RAN WG4 Meeting NR AH#2 - R4-1706669 : SS MPAC for RRM/Demod  

[8] TR 37.977 - Verification of radiated multi-antenna reception performance of User Equipment (UE)  

[9] OTA Test for Millimeter-Wave 5G NR Devices and Systems (Keysight Whitepaper) 

[10] 3GPP TR 38.827 - Study on radiated metrics and test methodoloty for the verification of multi-antenna reception performance of NR User Equipment (UE).