A.2.2.2 Dimensions
37.5443GPPConformance testingRelease 16TSUniversal Terrestrial Radio Access (UTRA) and Evolved UTRA (E-UTRA)User Equipment (UE) Over The Air (OTA) performance
Dimensions of the hand phantom are based on 50th percentile of the men’s hand and women’s hand dimensions averaged together in order to produce a standard hand phantom that lies in the middle of the expected range of users. Figure A.2.2.2-1 illustrates the segments of the human hand and Table A.2.2.2-1 summarizes the various dimensions for an open hand phantom [18].
Figure A.2.2.2-1: Segments and dimension points of the human hand
Table A.2.2.2-1: Hand phantom dimensions
A.2.2.3 Dielectric properties
Dielectric properties of dry palm human tissue are set as the target dielectric parameters for hand phantoms [19]. The properties are presented in Table A.2.2.3-1. It’s important that the hand phantom has equivalent electrical properties to real human hand to ensure that the same near field effects are seen with the hand phantom as would be seen with real hand. Relative permittivity of hand phantoms shall be within ±15% of the values listed in Table A.2.2.3-1. Conductivity of hand phantoms shall be within ±25% of the values listed in Table A.2.2.3-1. Methods for measuring dielectric properties can be found e.g. in [22] [23].
Table A.2.2.3-1: Target dielectric properties of a hand phantom
|
Frequency (MHz) |
Er |
σ (S/m) |
|
300,00 |
37,1 |
0,36 |
|
450,00 |
33,9 |
0,43 |
|
835,00 |
30,3 |
0,59 |
|
900,00 |
30 |
0,62 |
|
1450,00 |
27,9 |
0,85 |
|
1575,00 |
27,5 |
0,9 |
|
1800,00 |
27 |
0,99 |
|
1900,00 |
26,7 |
1,04 |
|
1950,00 |
26,6 |
1,07 |
|
2000,00 |
26,5 |
1,09 |
|
2100,00 |
26,3 |
1,14 |
|
2450,00 |
25,7 |
1,32 |
|
3000,00 |
24,8 |
1,61 |
|
4000,00 |
23,5 |
2,18 |
|
5000,00 |
22,2 |
2,84 |
|
5200,00 |
22 |
2,98 |
|
5400,00 |
21,7 |
3,11 |
|
5600,00 |
21,4 |
3,25 |
|
5800,00 |
21,2 |
3,38 |
|
6000,00 |
20,9 |
3,52 |