Product Specification SR4L002-PS-1.7 Page 1
Antennas for Wireless M2M Applications
1. Features
Antenna for LTE applications including MIMO systems.
LTE 700, GSM850, GSM900, DCS1800, PCS1900, WCDMA2100, LTE B7
(2500-2690 MHz), LTE B40 (2300 – 2400 MHZ).
Maintains high performance on device: DFI (Designed For Integration)
Smallest internal LTE antenna including clearance area.
Low profile innovative design.
SMD mounting
Supplied on Tape and Reel
2. Description
A compact low profile antenna for all 4G/LTE applications, including MIMO systems.
The antenna is built to a novel design and is less susceptible to de-tuning.
3. Applications
4G MiFi routers
Femto / Pico base stations
Portable Devices
Remote monitoring
Network Devices
Wearable devices
Lucida Antenna for LTE applications
Part No. SR4L002 lamiiANT ® Product Specification
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 2
4. Part Number
Lucida: SR4L002
5. General Data
Product name
Lucida
Part Number
SR4L002
Frequency
698 – 798 MHz
824 – 960MHz
1710 – 2170 MHz
2300 – 2400 MHz
2500 – 2690 MHz
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
2.0 g
Antenna type
SMD
Dimensions
35.0 x 8.5 x 3.2 (mm)
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 3
6. RF Characteristics
824 – 960 MHz
Peak gain
1.00dBi
Average gain (Linear)
-1.5dBi
Average efficiency
>60%
Maximum return loss
-6dB
Maximum VSWR
2.8:1
2300 – 2400 MHz
Peak gain
1.60dBi
Average gain (Linear)
-2.0dBi
Average efficiency
>50%
Maximum return loss
-10dB
Maximum VSWR
1.7:1
Peak gain
Average gain (Linear)
Average efficiency
Maximum return loss
Maximum VSWR
All data measured on
Antenova’s evaluation PCB
Part No. SR4L002-U1
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 4
7. RF Performance
7.1 Return Loss
7.2 VSWR
650 750 850 950 1050 1150 1250 1350 1450 1550 1650 1750 1850 1950 2050 2150 2250 2350 2450 2550 2650 2750
-20
-15
-10
-5
0
5
[MHz]
[dB] Atyune
1
23
4
56
78
9
10
650 750 850 950 1050 1150 1250 1350 1450 1550 1650 1750 1850 1950 2050 2150 2250 2350 2450 2550 2650 2750
1
2
3
4
5
6
7
8
9
10
[MHz]
[] Atyune
1
23
4
56
78
9
10
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 5
7.3 Antenna pattern
7.3.1 698 MHz – 798 MHz
3D pattern at 734 MHz
Drag to rotate pattern and PCB by using Adobe Reader
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 6
7.3.2 824 MHz – 960 MHz
3D pattern at 900 MHz
Drag to rotate pattern and PCB by using Adobe Reader
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 7
7.3.3 1710 MHz – 2170 MHz
3D pattern at 1930 MHz
Drag to rotate pattern and PCB by using Adobe Reader
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 8
7.3.4 2300 MHz – 2400 MHz
3D pattern at 2340 MHz
Drag to rotate pattern and PCB by using Adobe Reader
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 9
7.3.5 2500 MHz – 2690 MHz
3D pattern at 2600 MHz
Drag to rotate pattern and PCB by using Adobe Reader
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 10
8. Antenna Dimensions
L
W
H
Length
Width
Height
35.0 ±0.1
8.5 ±0.1
3.3 ±0.1
L1
L2
P1
P2
P3
P4
2.0
1.0
2.3
6.7
7.0
5.0
Pin 1 marker
Bottom Side
W
L
H
All Dimensions in (mm)
16 solder pads (2.0 x 1.0 mm)
3D rotational
Drag to rotate by using
Adobe Reader
(Click to activate)
Top side
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 11
9.0 Schematic symbol and Pin definition
The circuit symbol for the antenna is shown below. The antenna has 16 pins with
only two as functional. All other pins are for mechanical strength.
10.0 Antenna footprint
The recommended host PCB footprint is below.
16 copper pads all 2.0 x 1.0 (mm)
Pin
Description
3
Feed
4
Return/GND
1,2,5,6,7,8,9,10,1
1,12,13,14,15,16
Not used
(Mechanical only)
Lucida
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 12
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 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 co-planar transmission is 50 Ω.
11.2 Matching Circuit
The antenna requires a matching circuit that must be optimized for each product. The
matching circuit will require up to six 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.
Lucida
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 13
12.0 Antenna Integration Guide
12.1 Antenna Placement
Whichever the host PCB size used, the antenna should be placed ideally on the host
PCB’s shortest edge with the longest GND
The antenna requires clearance ideally in 5 spatial directions as shown below. Where
this cannot be achieved you should keep as many clear as possible to a minimum of 3.
Please note performance will degrade with less clearances.
Correct
Incorrect
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 14
12.2 Host PCB Layout
The host PCB must ensure the footprint and clearance meets the antenna
specification. An example of the PCB layout shows the antenna footprint with
clearance.
Example host layout
The distance D is the gap required from the antenna SMD pad edge to the ground
plane. This should be maintained along the edge the antenna is placed.
D = 3.2mm
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 15
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.
Example host layout
Placement of components and GND with traces adjacent to the antenna should
maintain a minimum clearance of 15mm from either side. The antenna should be
therefore placed in the corner to only have one side effected.
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 16
13.0 Diversity Example
For a MIMO system comprising of two LTE antennas. Care must be taken for the placement
to ensure that the isolation and cross correlation is within acceptable limits. Below is an
example using two Lucida mounted on the same host PCB. The EVB SR4L002-U2 was used
for this example.
Isolation
0300 600 900 1200 1500 1800 2100 2400 2700 3000
-35
-30
-25
-20
-15
-10
-5
0
5
[MHz]
[dB] Atyune
1
2
3
4
5
6
7
8
9
MARKERS: MHz dB MHz dB MHz dB MHz dB MHz dB
Isolation_Diversity EVB.S1P - S11
1: 698
2: 798
-24.83
-14.56
3: 824
4: 960
-13.12
-18.59
5: 1710
6: 2170
-15.44
-27.60
7: 2300
8: 2400
-22.43
-21.43
9: 2500
10: 2690
-26.11
-38.36
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 17
13.0 Host PCB Size
The performance of the low bands is highly dependent on the ground plane length. The
host PCB ground needs to be as long as the device allows. Reducing the GND directly relates
to the performance of the low bands. As shown below you can see the effect of the GND
plane length vs the efficiency.
Passive Efficiency vs. PCB length
All results measured in Antenova’s anechoic chamber
90mm
130mm
110mm
0
10
20
30
40
50
60
70
80
90
90mm
130mm
110mm
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 18
14.0 Reference Board
The reference board has been designed for evaluation purposes of SR4L002 includes a SMA
female connector.
SR4L002 Evaluation Board
To order a reference board contact sales@antenova-m2m.com
Please state if single or two antenna EVB is required.
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 19
14.1 Reference Board Matching Circuit
The reference board has been designed for evaluation purposes of SR4L002 includes a SMA
female connector.
Designator
Type
Value
Description
L1, L3
Inductor
15nH
Murata LQG15HN series
L2
Inductor
3.3nH
Murata LQG15HN series
C1
Capacitor
2.2pF
Murata GJM15 series
C2
Capacitor
Not fitted
Not fitted
C3
Capacitor
0.5pF
Murata GJM15 series
Lucida
L1
L3
L2
C1
C2
C3
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 20
15. 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.
16. 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.
17. 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.
The shelf life of the antenna is 2 years provided the factory seal on the package has not
been broken.
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 21
17.2 Tape Characteristics
Ko
Ao
Bo
P0
P1
P2
3.60
8.90 ± 0.1
35.60 ± 0.1
4.00 ± 0.1
12.00 ± 0.1
2.00 ± 0.1
E1
F
W
1.75 ± 0.1
26.2 ± 0.15
56.00 ± 0.3
Dimensions in mm
Notes:
1) Material: PS Black – Thickness: 0.35 ±0.05.
2) Packaging length per 22” reel: 51 Meters (1:4).
3) Component load per 13” reel: 1000pcs
Pin 1
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 22
17.3 Reel Dimensions
A
C
N
W1
330.0 ± 2.0
13.5 ± 0.5
100.0 ± 0.2
44.4 ± 0.3
All dimensions in mm
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 Page 23
17.4 Box Dimensions
Width
(W)
Breadth
(B)
Thickness
(H)
350mm
355mm
70mm
17.5 Bag Properties
Reels are supplied in protective plastic packaging.
17.6 Reel Label Information
60.00 mm
90mm
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: Lucida
Part number: SR4L002
Quantity: 1,000
Date Code: YYWW
Manufacturer’s code number: lamiiANT®
Lucida
Part No. SR4L002
Antennas for Wireless M2M Applications
Product Specification SR4L002-PS-1.7 released Nov 2015 revised June 2017 page24
www.antenova-m2m.com
Corporate Headquarters
Antenova Limited
2nd Floor Titan Court
3 Bishop Square
Hatfield
AL10 9NA
UK
Tel: +44 1223 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
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The materials provided herein are believed to be reliable and correct at the time of printing. Antenova does not
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information. Antenova further assumes no responsibility for the use of this information, and all such information
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