| 17 | | A number of SDR units in the grid have [attachment:Ant2.pdf multi-band (i.e. multi-standard) antennas] covering most of the !WiFi and 4G bands. They are mounted on a square plate 12 inches apart (in the horizontal plane) as shown in Figure 4. |
| | 17 | A number of SDR units in the grid have [attachment:Ant2.pdf multi-band (i.e. multi-standard) antennas] covering most of the !WiFi and 4G bands. They are mounted on a square plate 12 inches apart (in the horizontal plane) as shown in Figure 4. To minimize antenna correlation, the corner positions are used with the TX (and RX) of each RF chain on opposite diagonal corners. |
| | 18 | |
| | 19 | Top-down view of multi-band antenna panel: |
| | 20 | ||||=''Front of USRP''=|| |
| | 21 | || RFB RX2 || RFA TX/RX || |
| | 22 | || RFB TX/RX || RFA RX2 || |
