u blox EMMYW165 WLAN/Bluetooth/NFC host-based multiradio module EMMY-W1 User Manual EMMY W1 AntennaReferenceDesign UBX 16015910

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Document ID	3282803
Application ID	/KNldCNPyNvVf5F61rMFHA==
Document Description	EMMY-W1_AntennaReferenceDesign
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Document Type	User Manual
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Date Submitted	2017-02-14 00:00:00
Date Available	2016-10-25 00:00:00
Creation Date	2016-09-23 14:59:23
Producing Software	PDFCreator 2.3.0.103
Document Lastmod	2016-09-23 14:59:23
Document Title	EMMY-W1_AntennaReferenceDesign_(UBX-16015910)
Document Creator	PDFCreator 2.3.0.103
Document Author:	daniel.dietterle

locate, communicate, accelerate
EMMY-W1 Antenna reference design
Topic :
EMMY-W1 Antenna reference design
Doc.No:
UBX-16015910
Revision
R02
Created
Date:
Name
Signature
01-Jul-2016
Stefano Bianconi
sbia
23-Sep-2016
Daniel Dietterle
ddie
Checked
Released
We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
© 2016 u-blox AG
1 Scope
This document defines the essential specifications necessary to implement the EMMY-W1 antenna reference
designs. The information contained herein and its references should be sufficient to guide a skilled person in an
attempt to implement the design on a host carrier. It will provide the designer with PCB layout details and
expected performance specifications.
The document supports the four different PCB designs for Wi-Fi:
•
Two connector-based designs for the use of external antennas (one for each antenna pin of the module)
•
Two designs based on SMD antennas (one for each antenna pin of the module)
This document also supports general guidelines for the design of the NFC interface.
2 FCC/IC ID reference
Model
FCC ID
IC ID
EMMY-W161
XPYEMMYW161
8595A-EMMYW161
EMMY-W163
XPYEMMYW163
8595A-EMMYW163
EMMY-W165
XPYEMMYW165
8595A-EMMYW165
Table 1: FCC and IC IDs for different models of EMMY-W1 series
EMMY-W1 Antenna reference design
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3 General description
When using the EMMY-W1 together with this antenna reference design, the circuit trace layout must be made
in strict compliance with the instructions below.
All the components placed on each RF trace must be kept as indicated in the reference design, even if not used.
The PCB areas of unused reference designs must be flooded with ground.
Figure 1: Antenna Reference design embedded in a host carrier PCB
Reference
Description
Host carrier PCB (light green)
Antenna reference design (dark green)
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3.1 Floor plan and PCB stack-up
This section describes where the critical components are positioned on the reference design. It also presents the
stack-up of the four layers of the PCB.
10
Figure 2: EMMY-W1 antenna reference design
Reference
Description
SMD antenna
Antenna impedance matching network
Connectors for external antenna
Antenna coplanar microstrip, matched to 50 Ω
Top layer GND-plane
Antenna impedance matching network
SMD antenna
10
ELLA-W1 module
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3.2 PCB stack-up
The stack-up used in the reference design is specified in Table 2.
PCB Layer
Material
Soldermask Top
Generic LPI Soldermask
25 µm
Thickness
Top
Copper Foil
35 µm
Dielectric
Pre-preg 2x7628
360 µm
L2
Copper Foil
35 µm
Dielectric
Core
700 µm +/-10%
L3
Copper Foil
35 µm
Dielectric
Pre-preg 2x7628
360 µm
Bottom
Copper Foil
35 µm
Soldermask Bottom
Generic LPI Soldermask
25 µm
Table 2: Stack-up of EVK-EMMY-W1
3.2.1 RF trace specification
The 50 Ω coplanar micro-strip dimensions used in these reference designs are stated in Figure 3 and Table 3.
Figure 3: Coplanar micro-strip dimension specification
Item
Value
400 µm
600 µm
35 µm
360 µm
Table 3: Coplanar micro-strip specification
3.3 Mechanical dimensions
The Mechanical dimensions and position of the components are specified in Figure 4.
The layers beneath the ‘top layer’ have the same dimensions and are filled with ground. No RF traces are routed
in those layers.
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Figure 4: Mechanical dimensions of EVK-EMMY-W1, top layer
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4 Reference designs for antenna pin 1
This section describes the available designs for the antenna pin 1 of the EMMY-W1 modules.
Figure 5: Reference schematic for antenna pin 1
4.1 Internal antenna
The reference design with internal antenna uses the SMD Antenova type A10194 dual band antenna that is
connected to the module RF-port via a coplanar micro-strip transmission line.
4.1.1 Bill of materials
Reference
designator
Description
Manufacturer
P/N
A1
Antenna CHIP 2.45 & 5 GHz
Antenova
A10194
L1
IND, Multilayer Ceramic, 10nH, +/-5%, 300mA, SMD 0402
Johanson Technology
L-07C10NJV6ST
L2
IND, Multilayer Ceramic, 1nH, +/-0.3nH, 300mA, SMD 0402
Johanson Technology
L-07C1N0SV6T
C2
CAP, CER, 0.2pF, +/-0.1pF, C0G, 50V, SMD 0402
Johanson Technology
500R07S0R2BV4
R1
0 Ω resistor, 0402
Generic
R2
Do not Assembly
J7
Do Not Assembly
4.1.2 Antenna characteristics
Parameter
Low band
High band
Unit
Frequency Range
2.4 – 2.5
4.9 – 5.875
GHz
Peak Gain
1.8
4.1
dBi
VSWR
< 1.4:1
< 1.8:1
Efficiency
>75
>60
Polarisation
Linear
Radiation pattern
Omnidirectional
Temperature range
-40 to +85
°C
Impedance
50
Ω
Dimension
10.0 x 10.0 x 0.9
mm
(L x W x H)
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4.2 External antenna
The reference design with external antenna uses the micro coaxial connector that is connected to the external
antenna via a 50 Ω pigtail. See section 6 for a list of available external antennas.
4.2.1 Bill of materials
Reference
designator
Description
Manufacturer
P/N
A1
Do Not Assembly
L1
Do Not Assembly
L2
Do Not Assembly
C2
Do Not Assembly
R1
Do Not Assembly
R2
0 Ω resistor, 0402
Generic
J7
Coaxial Connector, 0 – 6 GHz, SMD
Hirose
U.FL-R-SMT-1(10)
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5 Reference designs for antenna pin 2
This section describes the available designs for the antenna pin 2 of the EMMY-W1 modules.
Figure 6: Reference schematic for antenna pin 2
5.1 Internal antenna
The reference design with internal antenna uses the SMD Johanson Technology type 2450AT45A100 antenna
that is connected to the module RF-port via a coplanar micro-strip transmission line.
5.1.1 Bill of materials
Reference
designator
Description
Manufacturer
P/N
A2
Antenna CHIP 2.4-2.5GHz
Johanson Technology
2450AT45A100
C3
CAP, CER, 2.2pF, +/-0.1pF, C0G, 50V, SMD 0402
Johanson Technology
500R07S2R2BV4
C4
CAP, CER, 1.8pF, +/-0.1pF, C0G, 50V, SMD 0402
Johanson Technology
500R07S1R8BV4
L3
IND, Multilayer Ceramic, 3.9nH, +/-0.3nH, 300mA, SMD 0402
Johanson Technology
L-07C3N9SV6T
R9
0 Ω resistor, 0402
Generic
R10
Do not Assembly
J8
Do Not Assembly
5.1.2 Antenna characteristics
Parameter
Low band
Unit
Frequency Range
2.4 – 2.5
GHz
Peak Gain
2.2
dBi
VSWR
< 2:1
Polarisation
Linear
Radiation pattern
Omnidirectional
Temperature range
-40 to +125
°C
Impedance
50
Ω
Dimension
9.5 x 2.0 x 1.2
mm
(L x W x H)
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5.2 External antenna
The reference design with external antenna uses the micro coaxial connector that is connected to the external
antenna via a 50 Ω pigtail. See section 6 for a list of available external antennas.
5.2.1 Bill of materials
Reference
designator
Description
Manufacturer
P/N
A2
Do not Assembly
C3
Do Not Assembly
C4
Do not Assembly
L3
Do not Assembly
R9
Do Not Assembly
R10
0 Ω resistor, 0402
Generic
J8
Coaxial Connector, 0 – 6 GHz, SMD
Hirose
U.FL-R-SMT-1(10)
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6 Approved external antenna list
For Bluetooth operation on EMMY-W163, the module has been tested and approved for use with antennas
listed in Table 4.
Model name
Manufacturer and description
Gain [dBi] (peak)
ANT-2.4-CW-RCT-RP
Linx, Single-band dipole antenna
2.2
ANT-2.4-CW-RH
Linx, Single-band monopole antenna
-0.9
GW.26.0151
Taoglas, Single-band dipole antenna
1.8
Table 4: Approved antennas list, single-band operation
For Bluetooth and Wi-Fi operations in the 2.4 GHz band and Wi-Fi operation in the 5 GHz band, the module has
been tested and approved for use with antennas listed in Table 5.
Model name
Manufacturer and description
Gain [dBi] (peak)
ANT-DB1-RAF-RPS
Linx, Dual-band dipole antenna
2.5 @ 2.4GHz band
4.6 @ 5GHz band
GW.40.2153
Taoglas, Dual-band dipole antenna
3.74 @ 2.4GHz band
2.5 @ 5GHz band
2.37 @ 2.4GHz band
GW.59.3153
Taoglas, Dual-band dipole antenna
RFDPA870900SBLB8G1
Walsin, Dual-band dipole antenna
2 @ 2.4GHz band
88395
Delock, Dual-band dipole antenna
1.5 @ 2.4GHz band
2.93 @ 5GHz band
3 @ 5GHz band
2.1 @ 5GHz band
Table 5: Approved antennas list, dual-band operation
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7 NFC reference design
This section describes the available design for the NFC coil antenna of the EMMY-W1 modules.
Figure 7: Reference schematic for NFC coil antenna
7.1 Internal antenna
The reference design uses a NFC coil antenna designed by u-blox.
7.1.1 Bill of materials
Reference
designator
Description
Manufacturer
P/N
J6
Pin Header, Pitch 2.54mm, 1x4 Way, Through Hole
Samtec
TSW-104-07-G-S
C10
Do Not Place
C11
CAP, CER, 220pF, 5%, NP0, 50V, SMD 0402
Murata
GRM1555C1H221JA01
C12
CAP, CER, 820pF, 5%, NP0, 50V, SMD 0402
Murata
GRM1555C1H821JA01
C13
Do Not Place
C14
CAP, CER, 820pF, 5%, NP0, 50V, SMD 0402
Murata
GRM1555C1H821JA01
C15
Do Not Place
7.1.2 NFC coil characteristics
Parameter
Low band
Unit
Frequency Range
13.56
MHz
Number of turns
Trace width
0.4
mm
Trace spacing (edge to edge)
0.4
mm
Dimensions (L x W)
30 x 30
mm
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Figure 8: EMMY-W1 reference coil antenna, mechanical dimensions
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Create Date                     : 2016:09:23 14:59:23+02:00
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Title                           : EMMY-W1_AntennaReferenceDesign_(UBX-16015910)
Creator                         : daniel.dietterle
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