APPLICATION NOTES RUN mXTENDTM (FR01-S4-224) - AN for WiFi Dual-band 2.4-2.5 GHz and 4.9-5.875 GHz Fractus Antennas specializes in enabling effective mobile communications. Using Fractus Antennas technology, we design and manufacture optimized antennas to make your wireless devices more competitive. Our mission is to help our clients develop innovative products and accelerate their time to market through our expertise in antenna design, testing and manufacturing. Fractus Antennas products are protected by Fractus Antennas patents. All information contained within this document is property of Fractus Antennas and is subject to change without prior notice. Information is provided "as is" and without warranties. It is prohibited to copy or reproduce this information without prior approval. RUN mXTENDTM Antenna Booster Fractus Antennas is an ISO 9001:2015 certified company. All our antennas are lead-free and RoHS compliant. FR01-S4-224 ISO 9001: 2015 Certified Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 1 APPLICATION NOTES TABLE OF CONTENTS 1. PRODUCT DESCRIPTION FR01-S4-224 .......................................................................... 3 2. EVALUATION BOARD WIFI DUAL-BAND ......................................................................... 4 3. 2.1. QUICK REFERENCE GUIDE ..................................................................................... 4 2.2. EVALUATION BOARD................................................................................................ 4 2.3. MATCHING NETWORK.............................................................................................. 5 2.4. VSWR AND TOTAL EFFICIENCY .............................................................................. 5 2.5. RADIATION PATTERNS (2.4-2.5 GHz), GAIN, AND EFFICIENCY ............................ 6 2.6. RADIATION PATTERNS (4.9-5.875 GHz), GAIN, AND EFFICIENCY ........................ 7 EVALUATION BOARD CR80 WIFI DUAL-BAND ............................................................... 8 3.1. QUICK REFERENCE GUIDE ..................................................................................... 8 3.2. EVALUATION BOARD................................................................................................ 8 3.3. MATCHING NETWORK.............................................................................................. 9 3.4. VSWR AND TOTAL EFFICIENCY .............................................................................. 9 3.5. RADIATION PATTERNS (2.4-2.5 GHz), GAIN, AND EFFICIENCY .......................... 10 3.6. RADIATION PATTERNS (4.9-5.875 GHz), GAIN, AND EFFICIENCY ...................... 11 Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 2 APPLICATION NOTES 1. PRODUCT DESCRIPTION FR01-S4-224 The RUN mXTENDTM Antenna Booster has been specifically designed for providing multiband performance in wireless devices (in particular in mobile devices), enabling worldwide coverage by allowing operation in the communication standards such as WiFi Dual-band. TOP BOTTOM Material: The RUN mXTENDTM Antenna Booster is built on glass epoxy substrate. APPLICATIONS Handsets and Smartphones Tablets and PCs Modules Routers Home automotion BENEFITS High efficiency Small size Cost-effective Easy-to-use (pick and place) Multiband behaviour (worldwide standards) Off-the-Shelf Standard Product (no customization is required) The RUN mXTENDTM Antenna Booster belongs to a new generation of antenna solutions based on the Virtual AntennaTM technology owned by Fractus Antennas. The technology is mainly focused on replacing conventional antenna solutions by miniature and standard components. This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement N 674491 Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 3 APPLICATION NOTES 2. EVALUATION BOARD WIFI DUAL-BAND 2.1. QUICK REFERENCE GUIDE Technical features 2.4 - 2.5 GHz 4.9 - 5.875 GHz Average Efficiency Peak Gain VSWR Radiation Pattern Polarization Weight (approx.) Temperature Impedance Dimensions (L x W x H) > 70 % 2.9 dBi > 70 % 3.1 dBi < 2.5:1 Omnidirectional Linear 0.19 g. -40 to + 85 C 50 12.0 mm x 3.0 mm x 2.4 mm Table 1 - Technical Features. Measures from the Evaluation Board. See Figure 1. 2.2. EVALUATION BOARD This Evaluation Board EB_FR01-S4-224-2,4-5 is made with a coplanar grounded transmission line (trace on the PCB) to connect the RUN mXTENDTM Antenna Booster with the SMA connector. The RUN mXTENDTM provides operation in the frequency regions, from 2.4 GHz to 2.5 GHz and from 4.9 GHz to 5.875 GHz, through a single input/output port. Measure A B C D mm 126.5 120 60 2.5 Tolerance: 0.2 mm D: Distance between the RUN mXTENDTM Antenna Booster and the ground plane. Material: The evaluation board is built on FR4 substrate. Thickness is 1 mm. Figure 1 - EB_FR01-S4-224-2,4-5. Evaluation Board providing operation from 2.4 GHz to 2.5 GHz and from 4.9 GHz to 5.875 GHz. This product and its use are protected by at least one or more of the following patents PAT. US 9,130,259 B2; PAT. US 8,237,615 B2. Other domestic and international patents pending. Additional information about patents related to this product is available at www.fractusantennas.com/virtual-antenna/. Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 4 APPLICATION NOTES 2.3. MATCHING NETWORK The specs of a Fractus Antennas standard product are measured in their evaluation board, which is an ideal case. In a real design, components nearby the antenna, LCD's, batteries, covers, connectors, etc. affect the antenna performance. This is the reason why it is highly recommended placing pads compatible with 0402 and 0603 SMD components for a matching network as close as possible to the feeding point. Do it in the ground plane area, not in the clearance area. This provides a degree of freedom to tune the RUN mXTENDTM Antenna Booster once the design is finished and taking into account all elements of the system (batteries, displays, covers, etc.). Please notice that different devices with different ground planes and different components nearby the RUN mXTENDTM Antenna Booster may need a different matching network. To ensure optimal results, the use of high Q and tight tolerance components is highly recommended (Murata components). Please, if you need assistance contact info@fractusantennas.com for more information related to the antenna booster matching service. 2.4 - 2.5 GHz and 4.9 - 5.875 GHz Value 0.9 pF Part Number GJM1555C1HR90WB01 3.3 nH LQW15AN3N3B80 0.3 pF GJM1555C1HR30WB01 1.8 nH LQW15AN1N8C00 Figure 2 - Matching Network implemented in the evaluation board (Figure 1). 2.4. VSWR AND TOTAL EFFICIENCY VSWR (Voltage Standing Wave Ratio) and Total Efficiency versus Frequency (GHz). Figure 3 - VSWR and Total Efficiency for the 2.4 - 2.5 GHz frequency range and for the 4.9 - 5.875 GHz frequency range from the evaluation board (Figure 1). Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 5 APPLICATION NOTES 2.5. RADIATION PATTERNS (2.4-2.5 GHz), GAIN, AND EFFICIENCY 0 330 30 0 -5 -10 310 60 -15 -20 -25 270 90 -30 240 120 210 150 180 Measurement System Set-Up Evaluation Board in Plane XY = 90 Plane XY at 2.45 GHz = 0 Plane XZ at 2.45 GHz = 90 Plane YZ at 2.45 GHz Gain Peak Gain 2.9 dBi Average Gain across the band 2.7 dBi Gain Range across the band (min, max) Efficiency 2.3 <-> 2.9 dBi Peak Efficiency 78.9 % Average Efficiency across the band 75.7 % Efficiency Range across the band (min, max) 72.8 - 78.7 % Table 2 - Antenna Gain and Total Efficiency from the evaluation board (Figure 1) within the 2.4 - 2.5 GHz frequency range. Measures made in the Satimo STARGATE 32 anechoic chamber. Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 6 APPLICATION NOTES 2.6. RADIATION PATTERNS (4.9-5.875 GHz), GAIN, AND EFFICIENCY 0 0 330 30 -5 -10 310 60 -15 -20 -25 270 90 -30 240 120 210 150 180 Measurement System Set-Up Evaluation Board in Plane XY = 90 Plane XY at 5.4 GHz = 0 Plane XZ at 5.4 GHz = 90 Plane YZ at 5.4 GHz Gain Peak Gain 3.1 dBi Average Gain across the band 2.8 dBi Gain Range across the band (min, max) Efficiency 1.8 <-> 3.1 dBi Peak Efficiency 83.1 % Average Efficiency across the band 72.8 % Efficiency Range across the band (min, max) 58.7 - 83.1 % Table 3 - Antenna Gain and Total Efficiency from the evaluation board (Figure 1) within the 4.9-5.875 GHz frequency range. Measures made in the Satimo STARGATE 32 anechoic chamber. Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 7 APPLICATION NOTES 3. EVALUATION BOARD CR80 WIFI DUAL-BAND 3.1. QUICK REFERENCE GUIDE Technical features 2.4 - 2.5 GHz 4.9 - 5.875 GHz Average Efficiency Peak Gain VSWR Radiation Pattern Polarization Weight (approx.) Temperature Impedance Dimensions (L x W x H) > 75 % 2.3 dBi > 65 % 2.8 dBi < 2:1 Omnidirectional Linear 0.19 g. -40 to + 85 C 50 12.0 mm x 3.0 mm x 2.4 mm Table 4 - Technical Features. Measures from the Evaluation Board. See Figure 4. 3.2. EVALUATION BOARD This Evaluation Board EB_FR01-S4-224-CR80-2,4-5 is made with a coplanar grounded transmission line (trace on a PCB) to connect the RUN mXTENDTM Antenna Booster with the SMA connector. The RUN mXTENDTM provides operation in the frequency regions, from 2.4 GHz to 2.5 GHz and from 4.9 GHz to 5.875 GHz, through a single input/output port. Measure A B C D mm 86 79.5 54 2.5 Tolerance: 0.2 mm D: Distance between the RUN mXTENDTM Antenna Booster and the ground plane. Material: The evaluation board is built on FR4 substrate. Thickness is 1 mm. Figure 4 - EB_FR01-S4-224-CR80-2,4-5 in CR80 standard format. Evaluation Board providing operation from 2.4 GHz to 2.5 GHz and from 4.9 GHz to 5.875 GHz. This product and its use are protected by at least one or more of the following patents PAT. US 9,130,259 B2; PAT. US 8,237,615 B2. Other domestic and international patents pending. Additional information about patents related to this product is available at www.fractusantennas.com/virtual-antenna/. Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 8 APPLICATION NOTES 3.3. MATCHING NETWORK The specs of a Fractus Antennas standard product are measured in their evaluation board, which is an ideal case. In a real design, components nearby the antenna, LCD's, batteries, covers, connectors, etc. affect the antenna performance. This is the reason why it is highly recommended placing pads compatible with 0402 and 0603 SMD components for a matching network as close as possible to the feeding point. Do it in the ground plane area, not in the clearance area. This provides a degree of freedom to tune the RUN mXTENDTM Antenna Booster once the design is finished and taking into account all elements of the system (batteries, displays, covers, etc.). Please notice that different devices with different ground planes and different components nearby the RUN mXTENDTM Antenna Booster may need a different matching network. To ensure optimal results, the use of high Q and tight tolerance components is highly recommended (Murata components). Please, if you need assistance contact info@fractusantennas.com for more information related to the antenna booster matching service. 2.4 - 2.5 GHz and 4.9 - 5.875 GHz Value 0.9 pF Part Number GJM1555C1HR90WB01 3.3 nH LQW15AN3N3B80 0.3 pF GJM1555C1HR30WB01 1.8 nH LQW15AN1N8C00 Figure 5 - Matching Network implemented in the evaluation board (Figure 4). 3.4. VSWR AND TOTAL EFFICIENCY VSWR (Voltage Standing Wave Ratio) and Total Efficiency versus Frequency (GHz). Figure 6 - VSWR and Total Efficiency for the 2.4 - 2.5 GHz frequency range and for the 4.9 - 5.875 GHz frequency range from the evaluation board (Figure 4). Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 9 APPLICATION NOTES 3.5. RADIATION PATTERNS (2.4-2.5 GHz), GAIN, AND EFFICIENCY 0 0 330 30 -5 -10 310 60 -15 -20 -25 270 90 -30 240 120 210 150 180 Measurement System Set-Up Evaluation Board in Plane XY = 90 Plane XY at 2.45 GHz 0 0 330 30 -5 -10 310 60 -15 -20 -25 270 90 -30 240 120 210 150 180 = 0 Plane XZ at 2.45 GHz Gain = 90 Plane YZ at 2.45 GHz Peak Gain 2.3 dBi Average Gain across the band 2.1 dBi Gain Range across the band (min, max) Efficiency 1.9 <-> 2.3 dBi Peak Efficiency 78.7 % Average Efficiency across the band 78.3 % Efficiency Range across the band (min, max) 77.1 - 78.7 % Table 5 - Antenna Gain and Total Efficiency from the Evaluation Board (Figure 4) within the 2.4 - 2.5 GHz frequency range. Measures made in the Satimo STARGATE 32 anechoic chamber. Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 10 APPLICATION NOTES 3.6. RADIATION PATTERNS (4.9-5.875 GHz), GAIN, AND EFFICIENCY Measurement System Set-Up Evaluation Board in Plane XY = 90 Plane XY at 5.4 GHz = 0 Plane XZ at 5.4 GHz = 90 Plane YZ at 5.4 GHz Gain Peak Gain 2.8 dBi Average Gain across the band 2.4 dBi Gain Range across the band (min, max) Efficiency 1.6 <-> 2.8 dBi Peak Efficiency 74.8 % Average Efficiency across the band 70.5 % Efficiency Range across the band (min, max) 62.0 - 74.8 % Table 6 - Antenna Gain and Total Efficiency from the evaluation board (Figure 4) within the 4.9 - 5.875 GHz frequency range. Measures made in the Satimo STARGATE 32 anechoic chamber. Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 11