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PIFA (Return
Loss)(Radiation Pattern)
() LabVIEW (HP8719D)
NI myDAQ
LabVIEW
()
HFSS Wi-Fi(2.4G~2.483GHz) F
Planar Inverted-F Antenna(PIFA) Return LossSmith Chart
() PIFA
15MHz
1
3 1.1 3
3 2.1 4
2.1.1 4 2.1.2 (HP8719D)4 2.1.3 4 2.1.4 4
2.2 5 2.3 5
2.3.1 SOLT5 2.3.2 (Path Loss + Receiver Antenna Gain)5
LabVIEW6 3.1 LabVIEW6 3.2 SOLT7
3.2.1 SOLT7 3.3 8
3.3.1 8 3.4 9
3.4.1 9 3.5 10
3.5.1 10 Wi-Fi PIFA11 4.1 HFSS11
4.1.1 PIFA11 4.1.2 PIFA12 4.1.3 Wave PortLumped Port14
15 5.1 LabVIEW15 5.2 18
5.2.1 20
20
2
1.1
GPS
(Dipole Antenna) (Loop Antenna) (Horn Antenna)FF
2.1
LabVIEW(HP8719D)SNI myDAQ 2.1NI myDAQ 2.2LabVIEWNI myDAQ 2.31.SOLTVNACable 2.Path LossReceiver Antenna Gain
Path Loss
S (VISA) (LabVIEW)
Cable
2.1
3
2.1 2.2
2.2
2.1.1 2.1.2 (HP8719D)
2.3 2.4HP 8719D
2.1.3 2.1.4
4.
2.
3.
NI myDAQ
5.
6.
1.
NI myDAQ
2.5NI myDAQ 2.6
4
2.2 2.7NI myDAQ
2.7
2.3
2.3.1 SOLT
2.8SOLT S
2.3.2 (Path Loss + Receiver Antenna Gain)
Gt
Gr
Path Loss
S
NI myDAQ (VISA)
(LabVIEW)
2.9
5
LabVIEW
3.1 LabVIEW
LabVIEW
3.2 SOLTVNACable
3.3 Path Loss+ Receiver Antenna Gain
3.4
3.5 Return Loss
CW Time Sweep
Frequency Sweep
3.1LabVIEW -
3.2 3.3
3.4
3.5
6
3.2 SOLT SOLT Part 3.2-1 Number of points Part 3.2-2 Full 2 Port SOLTOpenShortLoadThrough Part 3.2-3
3.2SOLT-
3.2.1 SOLT 3.3SOLT
SOLTS11S21
3.3SOLT-
Part 3.2-1 Part 3.2-2 Part 3.2-3
Part 3.2-2
Part 3.2-3
7
3.3 Part 3.3-1 Part 3.3-2 S21 Part 3.3-3 Path Loss+Gr
3.4-
3.3.1 3.5
S21Path Loss+Gr
3.5-
Part 3.3-1
Part 3.3-2 Part 3.3-3
Part 3.3-2
Part 3.3-3
8
3.4 Part 3.4-1 Part 3.4-2
3.6-
3.4.1 3.7
StartStop
3.7-
Part 3.4-1
Part 3.4-2
Part 3.4-1 Part 3.4-2
9
3.5 Part 3.5-1 1.Frequency Sweep 2.CW Time Sweep Part 3.5-2 S21 Part 3.5-3
3.8- 3.5.1
3.9 Return Loss
3.9-
Part 3.5-2
Part 3.5-3
Part 3.5-2
Part 3.5-3
Frequency Sweep
CW Time Sweep
Part 3.5-1
360
Part 3.5-1
10
Wi-Fi PIFA HFSS
Wi-Fi(2.4G~2.483GHz)FPlanar Inverted-F Antenna(PIFA)Return LossSmith Chart 4.1 HFSS
4.1.1 PIFA
2.45GHz FR40.8mm4.4 Lumped Port
4.1
Lumped Port FR4
4.2Lumped Port
1.79dBi1.96dBi91.23%
4.32.45GHz
40mm
40mm
55mm
35mm
40mm
27mm
=
11
Wave Port
4.4
Wave Port BOX De-embed SMA(Teflon)(SMA 7.6mm)
4.5Wave PortDe-embed=32.4mm
1.58dBi1.82dBi87.31%
4.6HFSS 2.45GHz 4.1.2 PIFA (Return Loss)
4.72G~3GHz
55mm
40mm 40mm
40mm
32.4mm
7.6mm
27mm
35mm
Lumped PortWave Port
12
Lumped Port2.3G~2.5GHz2.42GHz200MHz Wave Port2.38G~2.6GHz2.497GHz220MHz Wi-Fi2.4G~2.483GHz (Smith Chart)
4.82G~3GHz
Lumped Port Wave Port Lumped Port2.45GHz=46.25-j2.85 Wave Port 2.45GHz=47.85+j14.75 Wi-Fi 2.4G ~2.483GHz/ (Radiation Pattern)
E-Plane (Phi=90deg)Gain PhiGain Theta 4.1E-Plane Radiation Pattern
Lumped Port Wave Port
GainPhi MaxGain= -5.7dBi (=90)
GainThetaMaxGain=2dBi (=180) GainPhi MaxGain= -0.41dBi (=90) GainTheta MaxGain=0.87dBi (=30)
-40.00-30.00-20.00-10.000.00
90
60
300
-30
-60
-90
-120
-150-180
150
120
-40.00-30.00-20.00-10.000.00
90
60
300
-30
-60
-90
-120
-150-180
150
120
Curve InfodB(GainPhi)
Setup1 : Sw eep1Freq='2.45GHz' Phi='90deg'
dB(GainTheta)Setup1 : Sw eep1Freq='2.45GHz' Phi='90deg'
Z Z
1/3
Y
-Z
-Y
Y
-Z
-Y
13
4.2H-Plane Radiation Pattern H-Plane (Phi=0deg) Gain PhiGain Theta Lumped Port Wave Port
GainPhi MaxGain= 1.92dBi (=90) GainThetaMaxGain=-13.8dBi (=180)
GainPhi MaxGain= -3.32dBi (=90) GainTheta MaxGain= -11dBi (=0)
4.1.3 Wave PortLumped Port
4.3Wave Port Lumped Port Lumped Port
FR4 Wave Port
BOX De-embed SMA
Smith Chart Lumped PortFR4Wave PortBOXDe-embedSMALumped PortWave PortSMASmith Chart
= (2)
LLumped PortWave PortSMA
L2Wave Port
4.92G~3GHz
-30.00-20.00-10.000.00
90
60
300
-30
-60
-90
-120
-150-180
150
120
-30.00
-20.00-10.000.00
90
60
300
-30
-60
-90
-120
-150-180
150
120
Curve InfodB(GainPhi)
ImportedFreq='2.45GHz' Phi='0deg'
dB(GainTheta)ImportedFreq='2.45GHz' Phi='0deg'
Z Z
32.4mm
7.6mm
Lumped PortWave Port
-Z -Z
X X
-X -X
14
PIFA
15MHz
5.1 LabVIEW
Application.exe
GPIB Number16
LED NI myDAQ
Yes No
Recall Number Cancel
15
Frequency
5V1A
StartStop
OK
CableOK
1. 2. 3.
1.
2.
1.
2.
16
5.1 LabVIEW
LabVIEW
NI myDAQ
1.
2. 1.
2.
1.Word 2.Excel
1.
2.
17
5.2
(Return Loss)
5.12G~3GHz Lumped portWave port
Wave port13MHz 2.344G~2.778GHz2.483GHz434MHz Wi-Fi2.4G~2.483GHz (Smith Chart)
1/3
5.22G~3GHz Lumped port Wave port
18
Lumped portSMA()Lumped portSmith ChartSmith Chart 2.45GHz=35.7+j7.75 Wi-Fi 2.4G ~2.483GHz/ (Radiation Pattern)
E-Plane (Phi=90deg)Gain PhiGain Theta 5.2E-Plane Radiation Pattern
Wave Port
GainPhi MaxGain= -0.41dBi (=90) GainTheta MaxGain=0.87dBi (=30)
GainPhi MaxGain=1.86 dBi (=90) GainTheta MaxGain=2.36dBi (=30)
GainPhi 2.27 dBi GainTheta 1.43dBi
H-Plane (Phi=0deg) Gain PhiGain Theta
5.3H-Plane Radiation Pattern
Wave Port
GainPhi MaxGain= -3.32dBi (=90) GainTheta MaxGain= -11dBi (=0)
GainPhi MaxGain= -0.07dBi (=90) GainTheta MaxGain= -9.5dBi (=180)
GainPhi 3.25 dBi GainTheta 1.5dBi
-30.00
-20.00
-10.00
0.00
90
60
300
-30
-60
-90
-120
-150-180
150
120
-30.00
-20.00
-10.000.00
90
60
300
-30
-60
-90
-120
-150-180
150
120
Curve InfodB(GainPhi)
Setup1 : Sw eep1Freq='2.45GHz' Phi='90deg'
dB(GainTheta)Setup1 : Sw eep1Freq='2.45GHz' Phi='90deg'
-25.00
-15.00
-5.00
90
60
300
-30
-60
-90
-120
-150-180
150
120
-25.00
-15.00
-5.00
90
60
300
-30
-60
-90
-120
-150-180
150
120
Curve InfodB(GainPhi)
ImportedFreq='2.45GHz' Phi='0deg'
dB(GainTheta)ImportedFreq='2.45GHz' Phi='0deg'
Z Z
Y
-Z
-Y Y
-Z
-Y
Z Z
-Z -Z
X X
-X -X
19
5.2.1
5.4Wave Port Lumped Port
S11 (dB) Smith Chart ()
Wave Port
Lumped Port
S Lumped PortSMA(excitation)Lumped PortReturn Loss Wave Port(Coaxial Cable)
LabVIEWHFSSFR4Lumped PortWave Port
NI myDAQ8051
USB-RS232TXD(Transmit Data)RXD(Receive Data)IC MAX2328051 TXDRXDLabVIEWCOM Port8051
20