Antennas for Wireless M2M Applications
1
Product Specification Mica A5645-PS-2.2
Mica 2.4 GHz SMD Antenna
Part No. A5645 gigaNOVA® Product Specification
1 Features1
• Designed for 2.4 GHz applications: Bluetooth®, Wi-Fi® (802.11a/b/g/n), ZigBee®.
• Easy to integrate
• Designed for use with the ground plane extended beneath the antenna
• High efficiency
• Light weight
• Intended for SMD mounting
• Supplied in tape on reel
2 Description
Mica is intended for use with all 2.4 GHz applications. The antenna uses a ground plane in
order to radiate efficiently and the ground plane must extend underneath the antenna itself.
3 Applications
• Mobile phones
• PDAs
• PNDs
• Headsets
• PMPs / MP3s
• Laptops
• PC-Cards
• Sensors
• Automotive
Antennas for Wireless M2M Applications
2
Product Specification Mica A5645-PS-2.2
Mica 2.4 GHz SMD Antenna
Part No. A5645
4 Part number
5 General data
Mica: A5645
Product name
Mica 2.4 GHz
Part Number
A5645
Frequency
2.4 – 2.5 GHz
Polarization
Linear
Operating temperature
-40 ºC to +140 ºC
Environmental condition test
ISO16750-4 5.1.1.1/5.1.2.1/5.3.2
Impedance with matching
50
Ω
Weight
0.5 g
Antenna type
SMD
Dimensions
20.5 x 3.6 x 3.3 [mm]
6 Electrical characteristics
Typical performance
Conditions
Peak gain
1.8
dBi
All data measured on Antenova’s reference
board,
part number
A5645-U1
Data given for the 2.4 – 2.5 GHz frequency
range
Average gain
-1.9
dBi
Average efficiency
65%
Maximum Return Loss
-11
dB
Maximum VSWR
1.8:1
Antennas for Wireless M2M Applications
3
Product Specification Mica A5645-PS-2.2
Mica 2.4 GHz SMD Antenna
Part No. A5645
7 Electrical performance
7-1 Return Loss
7-2 VSWR
Antennas for Wireless M2M Applications
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Product Specification Mica A5645-PS-2.2
Mica 2.4 GHz SMD Antenna
Part No. A5645
dBi
5
-15
-35
X
7-3 Antenna patterns Z
Y
XY plane ZY plane XZ plane
Patterns show combined polarisations
measured on reference board A5645-U1
Antennas for Wireless M2M Applications
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Product Specification Mica A5645-PS-2.2
Mica 2.4 GHz SMD Antenna
Part No. A5645
8 Antenna dimensions
L
W
H
Length
Width
Height
20.5
±
0.2
3.6
±
0.2
3.3
±
0.2
Dimensions in mm
9 Antenna footprint
Mica (Part No: A5645)
CAD files of the antenna footprint are available from www.antenova-m2m.com
I
S
K
J
L
M
O
3.2
±
0.1
1.2
±
0.1
1.0
±
0.1
5.5
±
0.1
7.7
±
0.1
≥
0.4
±
0.1
0.2
±
0.1
Dimensions in mm
Antennas for Wireless M2M Applications
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Product Specification Mica A5645-PS-2.2
Mica 2.4 GHz SMD Antenna
Part No. A5645
10 Electrical interface
10-1 Transmission lines
• All transmission lines should be designed to have a characteristic impedance of 50
Ω
• The length of the transmission lines should be kept to a minimum
• Any other parts of the RF system like transceivers, power amplifiers, etc, should also be
designed to have an impedance of 50
Ω
Once the material for the PCB has been chosen (PCB thickness and dielectric constant), a
coplanar transmission line can easily be designed using any of the commercial software
packages for transmission line design. For the chosen PCB thickness, copper thickness and
substrate dielectric constant, the program will calculate the appropriate transmission line width
and gaps on either side of the track so the characteristic impedance of the coplanar
transmission line is 50
Ω
.
10-2 Matching circuit
The antenna requires a matching circuit that must be optimized for each customer’s product.
The matching circuit will require up to three components and the following pad layout should be
designed into the device so the correct circuit can be installed:
Antenna feed pad indicated. All other pads should be connected to ground.
In addition to the matching circuit, a separate DC blocking capacitor will also be required
between the radio and the antenna matching circuit.
Note: The component values for the matching circuit will vary depending on the size of
the PCB and surrounding components. The impedance of the antenna should be measured
before selecting suitable matching components. Antenova M2M offers this service on request.
Contact sales@antenova-m2m.com for further information.
Antennas for Wireless M2M Applications
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Product Specification Mica A5645-PS-2.2
Mica 2.4 GHz SMD Antenna
Part No. A5645
10-3 Antenna placement
Antenova M2M strongly recommends placing the antenna near the edge of the board.
Maximum antenna performance is achieved by placing the antenna towards one of the corners
of the PCB and with the feed point of the antenna as close to same corner of the PCB as
possible.
10-4 Reference board
The reference board has been designed for evaluation purposes of Mica 2.4 GHz and it
includes a SMA female connector
Dimensions in
mm
To order a reference board contact
sales@antenova-m2m.com
Antennas for Wireless M2M Applications
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Product Specification Mica A5645-PS-2.2
Mica 2.4 GHz SMD Antenna
Part No. A5645
11 Soldering
This antenna is suitable for lead free soldering.
The reflow profile should be adjusted to suit the device, oven and solder paste, while
observing the following conditions:
- The maximum temperature should not exceed 240 ºC
- However for lead free soldering, a maximum temperature of 255 ºC for no more than
20 seconds is permitted.
- The antenna should not be exposed to temperatures exceeding 120 ºC more than 3
times during the soldering process.
12 Hazardous material regulation conformance
The antenna has been tested to conform to RoHS requirements. A certificate of
conformance is available from Antenova M2M’s website.
13 Packaging
13-1 Optimal storage conditions for packaged reels
Temperature
-10ºC to 40ºC
Humidity
Less than 75% RH
Shelf Life
18 Months
Storage place
Away from corrosive gas and direct sunlight
Reels should be stored in unopened sealed
manufacturer’s plastic packaging.
Packaging
Note: Storage of open reels of antennas is not recommended due to possible oxidization of pads on
antennas. If short term storage is necessary, then it is highly recommended that the bag containing
the antenna reel is re-sealed and stored in like storage conditions as in above table.
Antennas for Wireless M2M Applications
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Product Specification Mica A5645-PS-2.2
Mica 2.4 GHz SMD Antenna
Part No. A5645
13-2 Tape characteristics
W
F
E
P0
P1
P2
A0
B0
K0
T
D0
D1
32
±
0.3
14.2
±
0.1
1.75
±
0.1
4
±
0.1
8
±
0.1
2
±
0.1
3.9
±
0.1
20.75
±
0.1
3.7
±
0.1
0.3
±
0.05
Min 1.5
Min 1.5
Dimensions in mm
Quantity
Leading Space
Trailing Space
2000 pcs / reel
50 blank antenna
holders
37 blank antenna
holders
Antennas for Wireless M2M Applications
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Product Specification Mica A5645-PS-2.2
Mica 2.4 GHz SMD Antenna
Part No. A5645
Width
(W)
Reel
Diameter
(D)
Hub
Diameter
(H)
Shaft
Diameter
(C)
35 mm
330
±
2.0 mm
100 mm
13.0
±
0.5 mm
Width
W
Breadth
B
Thickness
H
345 mm
345 mm
45 mm
13-3 Reel dimensions
13-4 Box dimensions
13-5 Bag properties
Reels are supplied in protective plastic packaging
Antennas for Wireless M2M Applications
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Product Specification Mica A5645-PS-2.2
Mica 2.4 GHz SMD Antenna
Part No. A5645
13-6 Reel label information
Mica 2.4 GHz SMD Antenna
Part No. A5645
Antennas for Wireless M2M Applications
Product Specification Mica A5646 PS-2.2 Revised March 2016 12
www.antenova-m2m.com
Corporate Headquarters
Antenova Ltd.
North America Headquarters
Antenova Ltd.
Asia Headquarters
Antenova Asia Ltd.
2nd Floor, Titan Court
3 Bishop Square
Hatfield
AL10 9NA
100 Brush Creek Road, Suite 103
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California ,95404
USA
4F, No. 324, Sec. 1, Nei-Hu Road
Nei-Hu District
Taipei 11493
Taiwan, ROC
Tel: +44 1223 810600
Email: sales@antenova-m2m.com
Tel: +1 707 890 5202
Email: sales@antenova-m2m.com
Tel: +886 (0) 2 8797 8630
Fax: +886 (0) 2 8797 6890
Email: sales@antenova-mem.com
Copyright® Antenova Ltd. All Rights Reserved. Antenova®, Antenova M2M®, gigaNOVA®, the Antenova
product family names, and
the
Antenova and Antenova M2M logos are trademarks and/or registered
trademarks of Antenova Ltd. Any
other
names and/or trademarks belong to their respective
companies.
The materials provided herein are believed to be reliable and correct at the time of print. Antenova does
not
warrant the accuracy or completeness of the information, text, graphics or other items contained within
these
information. Antenova further assumes no responsibility for the use of this information, and all
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information shall be entirely at the user’s
risk.
