TDK Multilayer Chip Antennas ANT1085-4R1 User manual

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001-02 / 20080114 / e821_ant1085.fm
• All specifications are subject to change without notice.
Multilayer Chip Antennas
For UWB
ANT Series ANT1085-4R1
SHAPES AND DIMENSIONS
RECOMMENDED PC BOARD PATTERNS
PCB material : FR-4
PCB thickness : 0.8 mm
ELECTRICAL CHARACTERISTICS FREQUENCY CHARACTERISTICS
VSWR
Conformity to RoHS Directive
1
2
3
4
4-Pitch 1.3
13-ø0.95
TDK
ANT

1085
Top view Bottom view
8.5±0.2 3.25 3.251
10±0.2
3.7
1.2±0.2
2.4
0.6
0.6
1.53.5
5.5 Dimensions in mm
1 GND
2 DC feed
3 GND
4 Pad(NC)
Terminal functions
0.5 0.5
Dimensions in mm
Hatching : Back side
31.75
43
8.7 2
17
4-Pitch 1.3
3.7
3.251 3.25
1.25
2.46
1 1
8.7
7.26
24
13-ø1.15
Part No. ANT1085-4R1-01A
Operating frequency range 3.1 to 5.2GHz
Polarization Linear(mixed)
Antenna gain 2.0dBi typ.
Impedance 50Ω
VSWR 3max.
Temperature range Operating –30 to +85°C
Storage –40 to +85°C
1264 4.5 5 5.53.52.5 3
3
2
4
5
6
7
8
9
10
VSWR
Frequency(GHz)
•Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and
specific bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.

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001-02 / 20080114 / e821_ant1085.fm
• All specifications are subject to change without notice.
RADIATION PATTERNS
ANT1085-4R1-01A
• The radiation pattern is measured by mounting the antenna on 55×20mm TDK STD evaluation base.
• Standard antenna: Standard dipole(Anritsu)
Tx antenna: Horn(TECOM)
Directivity angle Vertical polarization Horizontal polarization
Y:90˚
Z:0˚
X
3.432GHz
3.96GHz
4.488GHz
180˚
Vertical polarization
270˚
315˚
135˚
45˚
225˚
90˚
0
–10
10(dBi)
–20
–30
–40
0˚
3.432GHz
3.96GHz
4.488GHz
180˚
270˚
315˚
135˚
45˚
225˚
90˚
0
–10
10(dBi)
–20
–30
–40
0˚
Horizontal polarization
Y
Z:0˚
X:90˚
3.432GHz
3.96GHz
4.488GHz
180˚
Vertical polarization
270˚
315˚
135˚
45˚
225˚
90˚
0
–10
10(dBi)
–20
–30
–40
0˚
3.432GHz
3.96GHz
4.488GHz
180˚
270˚
315˚
135˚
45˚
225˚
90˚
0
–10
10(dBi)
–20
–30
–40
0˚
Horizontal polarization
Z
X:0˚
Y:90˚
3.432GHz
3.96GHz
4.488GHz
180˚
Vertical polarization
270˚
315˚
135˚
45˚
225˚
90˚
0
–10
10(dBi)
–20
–30
–40
0˚
3.432GHz
3.96GHz
4.488GHz
180˚
270˚
315˚
135˚
45˚
225˚
90˚
0
–10
10(dBi)
–20
–30
–40
0˚
Horizontal polarization

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001-02 / 20080114 / e821_ant1085.fm
• All specifications are subject to change without notice.
TENSILE STRENGTH OF TERMINAL
CENTER MOUNTING
It shall be not broken after a tensile force of 1 mm is applied to the
terminal in the direction of axis for 5±1seconds.
SIDE MOUNTING
It shall be not broken after a tensile force of 2 mm is applied to the
terminal in the direction of axis for 5±1seconds.
The tested antenna is offset by 40 mm from the position where the
tensile force is applied.
20
R340
45 45
gap±0.1
1
PCB(FR4)thickness : 0.8 mm
Dimensions in mm
20
R340
40
45 45
gap±0.1
PCB(FR4)thickness : 0.8 mm
Dimensions in mm
2