Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Page 1
1. Features
Antenna for ISM 868 and 915 MHz applications including LoRa, SigFox, and
Weightless-P
Frequency bands from 863 - 928MHz
Maintains high performance on device: DFI (Designed for Integration)
Corner placement to save space
Low profile innovative design
SMD mounting
Supplied in Tape and Reel
Automotive temperature rating
2. Description
The Grandis antenna uses a ground plane on the host PCB to radiate effectively.
The antenna itself requires a clearance underneath. An external matching circuit is
used to optimise the antenna within a device to the required bands. Designed
specifically for 868/915 ISM applications that require a small robust solution. Grandis
comes in Left and Right hand versions to optimise placement on a host PCB.
3. Applications
Industrial/Scientific/Medical (ISM)
Remote monitoring/ Smart meters
Network Devices
Manufacturing automation
Agriculture/Environment
Consumer tracking
Grandis Antenna for ISM applications
Part No. SR42I010-L & SR42I010-R lamiiANT ® Product Specification
Grandis
Part No. SR42I010
Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Page 2
4. Part Number
Grandis Left: SR42I010-L Grandis Right: SR42I010-R
5. General Data
6. RF Characteristics
Product name
Grandis
Part Number
SR42I010-L; SR42I010-R
Frequency
863 – 928MHz
Polarization
Linear
Operating temperature
-40°C to140°C
Environmental Condition Test
ISO16750-4 5.1.1.1/5.1.2.1/5.3.2
Impedance with matching
50 Ω
Weight
< 2g
Antenna type
SMD
Dimensions
12.0 x 11.0 x 1.6 (mm)
ISM 868
ISM 915
Dual band mode
863 – 870 MHz
902 – 928 MHz
863 – 928MHz
Peak gain
0.2dBi
0.4dBi
0.2dBi
Average gain (Linear)
-2.50dBi
-2.20dBi
-4.0dBi
Average efficiency
>60%
>65%
>45%
Maximum return loss
<-18dB
<-10dB
<-6dB
Maximum VSWR
1.2:1
1.8:1
3.1:1
All data measured on Antenova’s evaluation PCB
Part No. SR42I010-EVB-1
Grandis
Part No. SR42I010
Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Page 3
7. RF Performance
The performance is shown for two tuned variants (Tuning dependant on required
band). Matching circuit is used for band selection.
7.1 Return Loss
7.2 VSWR
Grandis
Part No. SR42I010
Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Page 4
7.3 Antenna pattern
7.3.1 863 – 870 MHz
3D pattern at 867 MHz
Drag to rotate pattern and PCB by using Adobe Reader
(Click to Activate)
Grandis
Part No. SR42I010
Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Page 5
7.3.1 902 – 928 MHz
3D pattern at 915 MHz
Drag to rotate pattern and PCB by using Adobe Reader
(Click to Activate)
Grandis
Part No. SR42I010
Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Page 6
8. Antenna Dimensions
Grandis Left: SR42I010-L Grandis Right: SR42I010-R
L
W
H
Length
Width
Height
12.0 ±0.1
11.0 ±0.1
1.7 +0.1/-0.2
All Dimensions in (mm)
Top side
Bottom Side
All Dimensions in (mm)
1
2
3
4
5
6
7
6
7
6
6
5
4
3
2
1
Grandis
Part No. SR42I010
Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Page 7
9. Schematic Symbol and Pin definition
The circuit symbol for the antenna is shown below. The antenna has 9 pins with only
two as functional. All other pins are for mechanical strength.
10.0 Antenna footprint
The recommended host PCB footprint is below.
7 copper pads all 1.8 x 1.3 (mm)
All Dimensions in mm
Pin
Description
2
Feed
1
Band Select (B.SEL)
3,4,5,6,7
Not used (Mechanical only)
Grandis
Part No. SR42I010
Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Page 8
11. Electrical Interface
11.1 Transmission Line
All transmission lines should be designed to have a characteristic impedance of 50Ω.
• 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 50Ω.
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 co-planar transmission is 50Ω.
11.2 Matching Circuit
The antenna requires a matching circuit that must be optimized for each product. The
matching circuit will require up to five components and the following circuit should be
designed into the host PCB. Not all components may be required but should be included
as a precaution. The matching network must be placed close to the antenna feed to
ensure it is more effective in tuning the antenna.
Grandis
Part No. SR42I010
Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Page 9
12.0 Antenna Integration Guide
12.1 Antenna Placement
Whatever the size of the host PCB, the antenna should ideally be placed on the host
PCB’s shortest side, in the corner. The antenna should be placed in the corresponding
corner: SR42I010-L (Left corner) and SR42I010-R (Right Corner).
12.2 Host PCB Layout
The design for the host PCB must ensure that the footprint and clearance meets the
antenna specification. An example of the PCB layout shows the antenna footprint with
clearance. The feed (Pin 2) connects to the matching circuit close to the antenna. For
Pin 1 (B.SEL) the component should be close to this pin.
Example host layout
1
Grandis
Part No. SR42I010
Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Page 10
12.3 Host PCB Clearance
Below shows the antenna footprint and clearance through all layers on the PCB. Only
the antenna pads and connections to feed and GND are present within this clearance
area. The clearance area required is 12.0 x 11.0 (mm).
The clear-out area is simply defined as the same size as the antenna. No additional
clearance is required.
Clearance area
Grandis
Part No. SR42I010
Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Page 11
13.0 Reference Board
The reference board has been designed for the purpose of evaluating the SR42I010 antenna
and includes a SMA female connector.
To order a reference board contact sales@antenova-m2m.com.
Please state if Left or Right version.
SR42I010-EVB-1 = SR42I010-R (Right)
SR42I010-EVB-2 = SR42I010-L (Left)
SR42I010-EVB-2 Evaluation
Board (For SR42I010-L)
SR42I010-EVB-1 Evaluation
Board (For SR42I010-R)
Grandis
Part No. SR42I010
Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Page 12
13.1 Reference Board Matching Circuit
The reference board has been designed for evaluation purposes of SR4C033-L and
SR4C033-R and includes a SMA female connector.
Single Band Matching
Dual Band Matching
Designator
Type
Value
Description
C1
Capacitor
2.2pF
Murata GJM15HN series
L1, L2
Not Fitted
Not Fitted
Not Fitted
B.SEL (Band Selection pin component)
Frequency band
Designator
Type
Value
Description
ISM 868
L3
Inductor
4.2nH
Murata LQG15 series
ISM 915
L3
Inductor
2.2nH
Murata LQG15 series
Designator
Type
Value
Description
C1
Capacitor
6.8pF
Murata GJM15HN series
C2
Capacitor
10pF
Murata GJM15HN series
L1
Inductor
4.7nH
Murata LQG15 series
L2
Inductor
1.8nH
Murata LQG15 series
Grandis
Part No. SR42I010
Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Page 13
14. 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.
15. 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.
16. Packaging
17.1 Optimal Storage Conditions
Temperature
-10ºC to 40ºC
Humidity
Less than 75% RH
Shelf life
24 Months
Storage place
Away from corrosive gas and direct sunlight
Packaging
Reels should be stored in unopened sealed
manufacturer’s plastic 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.
Grandis
Part No. SR42I010
Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Page 14
16.2 Tape Characteristics
Ko
Ao
Bo
P0
P1
P2
1.90
11.40 ± 0.1
12.40 ± 0.1
4.00 ± 0.1
16.00 ± 0.1
2.00 ± 0.1
E1
F
W
1.75 ± 0.1
11.5 ± 0.15
24.00 ± 0.3
Dimensions in mm
Notes:
1) 10 sprocket hole pitch cumulative tolerance ±0.2mm.
2) Camber not to exceed 1mm in 100mm.
3) Ao and Bo measured on a plane 0.1mm above the bottom of the packet.
4) Ko measured from a plane on the inside bottom of the packet to the top surface carrier.
Grandis
Part No. SR42I010
Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Page 15
16.3 Reel Dimensions
A
C
N
W1
330.0 ± 2.0
13.2 ± 0.5
178.0 ± 0.2
26.0 ± 0.3
All dimensions in mm
Grandis
Part No. SR42I010
Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Page 16
16.4 Box Dimensions
Width
(W)
Breadth
(B)
Thickness
(H)
350mm
355mm
70mm
16.5 Bag Properties
Reels are supplied in protective plastic packaging.
16.6 Reel Label Information
Antenova Limited
4F, No 324, Sec 1, Nei-Hu Road
Nei-Hu District, Taipei 11493, Taiwan, ROC
info@antenova-m2m.com / www.antenova-m2m.com
Description: Grandis
Part number: SR42I010-R
Quantity: 1,000
Date Code: YYWW
Manufacturer’s code number: lamiiANT®
60mm
90mm
60mm
Grandis
Part No. SR42I010
Antennas for Wireless M2M Applications
Product Specification SR42I010-PS-1.0 Release date May 2017 Page 17
www.antenova-m2m.com
Corporate Headquarters
Antenova Limited
2nd Floor Titan Court
3 Bishop Square
Hatfield
AL10 9NA
UK
Tel: +44 1233 810600
Email: sales@antenova-m2m.com
North America Headquarters
Antenova Limited
100 Brush Creek Road
Suite 103, Santa Rosa
California 95404,
USA
Tel: +1 707 890 5202
Email: sales@antenova-m2m.com
Asia Headquarters
Antenova Asia Limited
4F, No. 324, Sec. 1, Nei-Hu Road
Nei-Hu District
Taipei 11493
Taiwan, ROC
Tel: +886 (0) 2 8797 8630
Fax: +886 (0) 2 8797 6890
Email: sales@antenova-m2m.com
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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 printing. Antenova does not
warrant the accuracy or completeness of the information, text, graphics or other items contained within this
information. Antenova further assumes no responsibility for the use of this information, and all such information
shall be entirely at the user’s risk.
