Procedure for Taking Radiation Patterns Using Antenna Measurement Utility Software and VNA1-Start the VNA 2- Calibrate the cable-Calibration Step-1- Go to measurement Select S212- Go to Stimulus Select Start and Stop Frequency 1GHz to 8GHz3- Go to Sweep Setup Power-10dB4- Go to Calibration- Calibration Kit-85032F5- Go to Calibrate-2-port Cal Reflection: 1-Connect Open male from the kit to port1 cable then click on Open male at the VNA. 2- Connect Short male from the kit to port1 cable then click on Short male at the VNA. 3-Connect Load male from the kit to port1 cable then click on Load male at the VNA. 4-Connect Open male from the kit to port2 cable then click on Open male at the VNA. 5- Connect Short male from the kit to port2 cable then click on Short male at the VNA. 6-Connect Load male from the kit to port2 cable then click on Load male at the VNA. 7-Return6- Transmission: 1-Connect to port1 cable to port2 cable via feed thru then click on Thru at the VNA. 2- Press Done at the VNA 7- Go to Save and Recall8- Save State9- Choose state10- Save settings

If we have done the calibration and have the save settings already then we do not need to re calibrate the VNA we just recall the calibration settings by-Go to save and Recall Recall stateSelect state in which you have stored your settings already (like state 1).3- Connect the cables to transmitter and receiver 4- Connect the antenna positioner and controller as shown in figure-1;

Figure-1TxRxAC 220 VDB9USBPORT-2PORT-1USBUSB (REAR PANEL)VNAControllerPositionerCPU

5-Switch on the controller box6- Close all other applications in PC like Excel and others.7- Disable the antivirus during Positioner movement.8- Click on the AMU_SLTL_S.exe shortcut on your desktop.9- It will Show like Figure-2, now click on the Start button. 10-It will open anew window shown in figure-3.

Figure-2

Figure-311- For Getting serial information port Go to Computer-properties- Device Manager-Ports(COM& LPT) as shown in figure-4-5.

Figure-4

Figure-5

12-Now enter the serial port -5 as shown in figure 5

Figure-65

13-Now set the Direction clockwise or Anticlockwise by selecting the popup-menu .

14- Step has been fixed by 1 Degree.15- We can set the Delay from 0.25 second to 20 second by selecting Delay(s). as shown in figure-7.

Figure-7

16- Now click on the connect button as shown in figure -8.

Figure-8

17- Now click on The SCAN button as shown in figure-9.

Figure-9

18- After pressing the SCAN button Generation of polar plot has been started as shown in figure-10.

Figure-10

19- After Completion of all 361 degree wait for a second and then press save button it will show a window asking the filename, and then please give any file name this will save your data in .mat format.

Figure-11

Figure-12

20- After saving data press Polar plot and browse your saved data file. This will Generate polar plot as shown by figure-14.

Figure-13

Figure-14

21- You can also save your data in .excel format by pressing Generate report button as shown in figure-15.

Figure-15

22- Report in Excel shown in figure-16.