Phycomp
Product specification
Surface-mount ceramic
multilayer antennas
FEATURES
•
Designed for 2.45 GHz ISM-band
•
Simplifies antenna circuitry
•
NiSn lead-free terminations
•
Suitable for wave and reflow
soldering
•
Supplied in tape on reel.
APPLICATIONS
•
Telecommunications
•
Computing (PCs, printers, PDAs)
•
Wireless office data
communications including WLAN
•
Consumer electronics (wireless
headphones).
QUICK REFERENCE DATA
DESCRIPTION
Centre frequency (for different central frequency shifts)
Bandwidth
Gain
VSWR
Polarization
Azimuth beamwidth
Impedance
Power dissipation
Operating temperature
Terminations
Resistance to soldering heat
Weight
DESCRIPTION
2.45 GHz ISM-band antenna for
Bluetooth and WLAN IEEE 802.11b
ENVIRONMENTAL CARE
The foil making process
uses an environment-
friendly aqueous-solvent
technology that fully complies with
today’s green-product design
requirements. All terminations are
lead-free. Packing materials can be
recycled.
This 2.45 GHz ceramic multilayer
antenna has been designed to meet
the requirements of the
Bluetooth
TM(1)
and IEEE 802.11b
wireless communications protocol. It
consists of a rectangular block of
low-dielectric ceramic material and is
fabricated in a water-based non-toxic
process. The antenna is capable of
providing good connectivity using
near 50
Ω
microstrip directly onto the
PC board.
(1)
Bluetooth is a trademark owned by
Telefonieaktiebolaget L M Ericsson,
Sweden.
VALUE
2.45, 2.60, 2.70, 2.80 and 2.90 GHz
100 MHz
1.2 dBi max.
2 max.
Linear
Omni-directional
50
Ω
1W
−55
to
+125 °C
NiSn
260
°C
for 10 s
0.16 g
2002 Oct 17 Rev.2
2
www.yageo.com
Phycomp
Product specification
Surface-mount ceramic
multilayer antennas
MECHANICAL DATA
2.45 GHz ISM-band antenna for
Bluetooth and WLAN IEEE 802.11b
W
S4
S3
S2
S2
S3
S4
C
L
C
F
G
S1
T
S1
F
G
For dimensions see Table 1.
HBK016
Fig.1. Dimensional outline.
Physical dimensions
Table 1
Antenna dimensions
DETAILS
−
−
−
feed termination
optional ground termination
(1)
−
NC solder termination
NC solder termination
NC solder termination
NC solder termination
DIMENSIONS (mm)
7.35
±0.25
5.5
±0.2
1.3
±0.2
0.9
±0.25
1.25
±0.35
0.5
±0.3
1.25
±0.35
1.25
±0.35
0.9
±0.25
1.25
±0.35
Device marking
CENTRE
FREQUENCY
(GHz)
2.45
2.60
2.70
2.80
2.90
MARKING
CODE
no marking
6
7
8
9
SYMBOL
L
W
T
F
G
C
S
1
S
2
S
3
S
4
Note
1. The antenna has built-in circuitry to the ground termination. Connecting
the antenna’s ground point to the system’s RF ground plane is optional. If
good matching is achieved, the ground termination is then used as a
solder joint (like S
1
, S
2
, S
3
, and S
4
) to fix the antenna to the substrate
only.
2002 Oct 17 Rev.2
3
www.yageo.com
Phycomp
Product specification
Surface-mount ceramic
multilayer antennas
ELECTRICAL CHARACTERISTICS
DESCRIPTION
Centre frequency
Bandwidth
Gain
VSWR
Polarization
Azimuth beamwidth
Impedance
Power dissipation
Operating temperature
Terminations
Resistance to soldering heat
FOOTPRINT DIMENSIONS
L
C
2.45 GHz ISM-band antenna for
Bluetooth and WLAN IEEE 802.11b
VALUE
2.45, 2.60, 2.70, 2.80 and 2.90 GHz
100 MHz
1.2 dBi max.
2 max.
Linear
Omni-directional
50
Ω
1W
−55
to
+125 °C
NiSn
260
°C,
10 sec.
C
S1
ANTENNA
F
S2
S3
W
G
S4
HBK015
Dimensions in mm
For dimensions see Table 2.
Fig.2
Physical dimensions
Table 2
Recommended dimensions of solder lands.
Recommended solder land pattern
COMMENT
−
−
feed pad
optional ground pad
−
DIMENSIONS
(mm)
8.30
±0.10
5.70
±0.10
1.00
±0.10
1.40
±0.10
0.90
±0.10
SYMBOL
S
1
S
2
S
3
S
4
−
COMMENT
NC mounting pad
NC mounting pad
NC mounting pad
NC mounting pad
−
DIMENSIONS
(mm)
1.40
±0.10
1.40
±0.10
1.00
±0.10
1.40
±0.10
−
SYMBOL
L
W
F
G
C
2002 Oct 17 Rev.2
4
www.yageo.com
Phycomp
Product specification
Surface-mount ceramic
multilayer antennas
2.45 GHz ISM-band antenna for
Bluetooth and WLAN IEEE 802.11b
STANDARD TEST BOARD FOR RADIATION PATTERN AND SWR MEASUREMENTS
14
50
Ω
transmisson
line
14
SMA
connector
antenna
chip
8
0.8
1.2
Dimensions in mm
HBK090
Fig.3
Typical FR4 test board.
RYA002
50
25
3 GHz
2 GHz
10
Ω
+
j
0
−
j
Ω
10
250
Ω
10
25
100
250
250
100
SWR
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
2.0
2.2
1 2 3
2 1
3
∞
25
100
RYA0003
2.4
2.6
2.8
3.0
f (GHz)
50
Marker data:
1: SWR = 1.28; f = 2.400 GHz
2: SWR = 1.34; f = 2.450 GHz
3: SWR = 1.34; f = 2.500 GHz.
Marker data:
1: 50.75
Ω/12.36 Ω;
f = 2.400 GHz
2: 44.98
Ω/12.83 Ω;
f = 2.450 GHz
3: 43.99
Ω/12.27 Ω;
f = 2.500 GHz.
Fig.4
Typical SWR and characteristic impedance measurements.
2002 Oct 17 Rev.2
5
www.yageo.com
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