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ELLA-W1 Antenna trace designs

UBX-16016269 Page 1 of 9

locate, communicate, accelerate

ELLA-W1 Antenna trace designs

Topic :

ELLA-W1 Antenna trace designs

Doc.No:

UBX-16016269

Revision

R02

Date:

Name

Signature

Created

01-Jul-2016

Stefano Bianconi

sbia

Checked

01-Jul-2016

Igor Shevchenko

ishe

Released

06-Jul-2016

Daniel Dietterle

ddie

1 Scope

This document defines the essential specifications necessary to implement the ELLA-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:

 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)

2 FCC/IC ID reference

Model

FCC ID

IC ID

ELLA-W131

PV7-WIBEAR11N-SF1

7738A-WB11NSF1

ELLA-W133

PV7-WIBEAR11N-SF2

7738A-WB11NSF2

ELLA-W161

PV7-WIBEAR11N-DF1

7738A-WB11NDF1

ELLA-W163

PV7-WIBEAR11N-DF2

7738A-WB11NDF2

Table 1: FCC and IC IDs for different models of ELLA-W1 series

The FCC and IC IDs are the same for professional and automotive grade variants of each ELLA-W1 model.

Summary of content (9 pages)

PAGE 1
locate, communicate, accelerate ELLA-W1 Antenna trace designs Topic : ELLA-W1 Antenna trace designs Doc.No: UBX-16016269 Revision R02 Date: Name Signature Created 01-Jul-2016 Stefano Bianconi sbia Checked 01-Jul-2016 Igor Shevchenko ishe Released 06-Jul-2016 Daniel Dietterle ddie 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.
PAGE 2
locate, communicate, accelerate 3 General description When using the ELLA-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.
PAGE 3
locate, communicate, accelerate 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.
PAGE 4
locate, communicate, accelerate 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-ELLA-W1 3.2.
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locate, communicate, accelerate 3.3 Mechanical dimensions The mechanical dimensions and position of the components are specified in Figure 3. The layers beneath the ‘top layer’ have the same dimensions and are filled with ground. No RF traces are routed in those layers.
PAGE 6
locate, communicate, accelerate 4 Reference designs for antenna pin 1 This section describes the available designs for the antenna pin 1 of the ELLA-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 Description Manufacturer P/N A1 Antenna CHIP 2.
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locate, communicate, accelerate 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 0 for a list of available external antennas. 4.2.
PAGE 8
locate, communicate, accelerate 5 Reference designs for antenna pin 2 This section describes the available designs for the antenna pin 2 of the ELLA-W1 modules. Note that only ELLAW133 and ELLA-W163 use antenna pin 2, for Bluetooth transmission. 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.
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locate, communicate, accelerate Parameter Low band Unit 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) 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 0 for a list of available external antennas. 5.2.