AN058
Audun Andersen
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2.4GHz
868/915MHz
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1
(SRD)
www.ti.com.cn/rf
EM
PCB Antenna
Chip Antenna
Whip Antenna
1.
ZHCA070
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AN058
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3.1 PCB
3.2 CHIP
3.3 WHIP
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4.1
4.2
4.3
5 www.ti.com.cn/rf
5.1 2.4GHz 50Hz
5.2 2.4GHz
5.3 868/915MHz
6
6.1
6.2 EM
6.3
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8
8.1
2
AN
CW
DB
DN
DUT
EIRP
EM
EM
IFA
ISM
LOS
MIFA
PCB
RF
SRD
TI
VSWR
Application Note
Carrier Wave
Demonstration Board
Design Note
Device Under Test
Effective Isotropic Radiated Power
electronic Magnetic
Evaluation Module
FInverted F Antenna
IndustrialScientificMedical
Line Sight
FMeandered Inverted F Antenna
Printed Circuit board
Radio Frequency
Short Range Device
Texas Instruments
Voltage Standing Wave Ratio
ZHCA070
2
AN058
3
PCB
PCB
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PCB
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1.
5050
50
2
RF
Single Ended
Antenna
Differential Antenna
2.
ZHCA070
3
AN058
2.4-2.4835GHz863-870MHz902-928
868MHz,915MHz
868MHz915MHz
868/915MHz
3.1 PCB
PCB
www.ti.com.cn/rf
4
3.2
1GHzPCBBOM0.1-1.0
50
PCB
3.3
SRDSRD001[1]032[2]
4
4.14.2
PCB
4.3
ZHCA070
4
AN058
4.1
31PCB
33
3.
dBi
Effective Isotropic Radiated35.6dBi3
4dB/div4dB1PCB
05.6bB1806.4dB
PDeG
rad
P
in
PD
rad
P
in
U
U
max
avg
1.
G1
D
ZHCA070
5
AN058
SRD
Line of Sight
DUT
Rf
D2.
fR
22D
2.
XYXZYZ
3D
=90=0=904
0X
XYYXZ0ZXYZ0Z
Y
4.
ZHCA070
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AN058
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SmartRF04EB5SmartRF04EB
-1.2dB4.6dBSRD
ZHCA070
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CC1100EM PCB Antenna in SmartRF04EB
CC1100EM PCB Antenna without SmartRF04EB
AN058
Vertical Polarization, YZ plane
0 dBm, 868 MHz
2 dB/div
Ref Lev: 4.6 dB
Vertical Polarization, YZ plane
0 dBm, 868 MHz
2 dB/div
Ref Lev: -1.2 dB
5.
ZHCA070
8