USER MANUAL GeofindTM (FR05-S1-E-0-103) GeofindTM (FR05-S1-E-0-103) - GPS/GLONASS/BeiDou (1561 MHz, 1575 MHz and 1598-1606 MHz) Fractus Antennas specializes in enabling effective mobile communications. Using Fractus 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 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. GeofindTM Fractus Antennas is an ISO 9001:2015 certified company. All our antennas are lead-free and RoHS compliant. FR05-S1-E-0-103 ISO 9001: 2015 Certified Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 1 USER MANUAL GeofindTM (FR05-S1-E-0-103) INDEX OF CHAPTERS 1. ANTENNA DESCRIPTION ................................................................................................. 4 2. QUICK REFERENCE GUIDE ............................................................................................. 4 3. ELECTRICAL PERFORMANCE ......................................................................................... 5 4. MECHANICAL CHARACTERISTICS .................................................................................. 8 5. MATCHING NETWORK ..................................................................................................... 9 6. ASSEMBLY PROCESS .................................................................................................... 10 7. PACKAGING .................................................................................................................... 12 Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 2 USER MANUAL GeofindTM (FR05-S1-E-0-103) TABLE OF CONTENTS 1. ANTENNA DESCRIPTION ................................................................................................. 4 2. QUICK REFERENCE GUIDE ............................................................................................. 4 3. ELECTRICAL PERFORMANCE ......................................................................................... 5 4. 3.1. FRACTUS EVALUATION BOARD .............................................................................. 5 3.2. VSWR AND EFFICIENCY .......................................................................................... 5 3.3. RADIATION PATTERNS, GAIN AND EFFICIENCY ................................................... 6 3.4. CAPABILITIES AND MEASUREMENT SYSTEMS ..................................................... 7 MECHANICAL CHARACTERISTICS .................................................................................. 8 4.1. DIMENSIONS AND TOLERANCES ............................................................................ 8 4.2. SPECIFICATIONS FOR THE INK ............................................................................... 8 4.3. ANTENNA FOOTPRINT (as used in the evaluation board) ......................................... 9 5. MATCHING NETWORK ..................................................................................................... 9 6. ASSEMBLY PROCESS .................................................................................................... 10 7. PACKAGING .................................................................................................................... 12 Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 3 USER MANUAL GeofindTM (FR05-S1-E-0-103) 1. ANTENNA DESCRIPTION The GeofindTM Chip Antenna is specifically engineered for low cost, consumer electronics mobile devices for GPS (1575 MHz), GLONASS (1598-1606 MHz), and BeiDou (1561 MHz). The GeofindTM Chip Antenna uses space-filling properties of Fractus technology to minimise its size and cost while maintaining a high radiation efficiency value. This monopole antenna performs an omnidirectional radiation pattern, allowing it to work effectively regardless of the position of the GPS/GLONASS/BeiDou device. TOP BOTTOM Material: The GeofindTM antenna is built on glass epoxy substrate. APPLICATIONS 2. BENEFITS Metering (Gas, Electricity, Water...) RFID (UHF Tags, Readers...) Sensors (Parking, Speed control, Optics...) Modules Zigbee Gateways High efficiency and gain Cost-effective Small size Easy to use (pick and place) QUICK REFERENCE GUIDE Technical Features 1561 MHz 1575 MHz 1598 - 1606 MHz Antenna Efficiency Peak Gain Radiation Pattern VSWR Polarization Weight (approx.) Temperature Impedance Dimensions (L x W x H) > 75.0 % 1.4 dBi > 70.0 % 1.2 dBi Omnidirectional < 2:1 Linear 0.2 g -40 to 85 C 50 10.0 mm x 10.0 mm x 0.9 mm > 70.0 % 1.3 dBi Table 1 - Technical Features. Measures from the evaluation board. See Figure 1and picture in page 6. Please contact info@fractusantennas.com if you require additional information on antenna integration or optimization on your PCB. Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 4 USER MANUAL GeofindTM (FR05-S1-E-0-103) 3. 3.1. ELECTRICAL PERFORMANCE FRACTUS EVALUATION BOARD The Fractus Antennas configuration used in testing the GeofindTM Embedded Antenna is displayed in Figure 1. Measure A B C D E F mm 60.0 30.0 71.0 17.0 35.0 11.0 Tolerance: 0.2mm Material: The evaluation board is built on FR4 substrate. Thickness is 1.0mm. Clearance Area: 30 mm x 11 mm Figure 1 - EB_FR05-S1-E-0-103. GeofindTM Evaluation Board. 3.2. VSWR AND EFFICIENCY VSWR (Voltage Standing Wave Ratio) and Total Efficiency versus Frequency (GHz). Figure 2 - VSWR and Efficiency (%) vs. Frequency (GHz). Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 5 USER MANUAL GeofindTM (FR05-S1-E-0-103) 3.3. RADIATION PATTERNS, GAIN AND EFFICIENCY Measurement System Set-Up Evaluation Board in Plane XY = 90 Plane XY at 1.561 GHz, 1.575 GHz and 1.602 GHz = 0 Plane XZ at 1.561 GHz, 1.575 GHz and 1.602 GHz = 90 Plane YZ at 1.561 GHz, 1.575 GHz and 1.602 GHz Gain 1.4 dBi Efficiency 78.0 % Gain 1.2 dBi Efficiency 73.3 % BeiDou GPS Gain Peak Gain 1.3 dBi Average Gain across the band 1.2 dBi Gain Range across the band (min, max) GLONASS Efficiency 1.2 <-> 1.3 dBi Peak Efficiency 73.7 % Average Efficiency across the band 73.1 % Efficiency Range across the band (min, max) 72.6 - 73.7 % Table 2 - Antenna Gain and Total Efficiency from the evaluation board (Figure 1) for BeiDou (1561 MHz), GPS (1575 MHz) and GLONASS (1598-1606 MHz) bands. Measures made in the Satimo STARGATE 32 anechoic chamber. Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 6 USER MANUAL GeofindTM (FR05-S1-E-0-103) 3.4. CAPABILITIES AND MEASUREMENT SYSTEMS Fractus Antennas specializes in the design and manufacture of optimized antennas for wireless applications, and with the provision of RF expertise to a wide range of clients. We offer turn-key antenna products and antenna integration support to minimize your time requirements and maximize return on investment throughout the product development process. We also provide our clients with the opportunity to leverage our in-house testing and measurement facilities to obtain accurate results quickly and efficiently. 0 Le ft Ante nna Rig ht Ante nna Is o latio n -2 -4 -6 Re turn Lo s s (dB) VSWR & S Parameters -8 VSWR=2 -10 -12 -14 -16 -18 Agilent E5071B -20 2 2.5 3 3.5 4 4.5 Fre que nc y (GHz) 5 5.5 6 Radiation Pattern & Efficiency SATIMO STARGATE 32 Anechoic chambers and full equipped in-house lab Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 7 USER MANUAL GeofindTM (FR05-S1-E-0-103) 4. 4.1. MECHANICAL CHARACTERISTICS DIMENSIONS AND TOLERANCES TOP SIDE BOTTOM The black dot located on the top side of the antenna indicates the feed pad. Measure A B C D mm 1.2 0.1 1.9 0.1 7.6 0.2 6.2 0.2 Measure E F G mm 0.71 0.15 0.9 0.2 10.0 0.2 Figure 3 - Antenna Dimensions and Tolerances. Fractus GeofindTM chip antenna is compliant with the restriction of the use of hazardous substances (RoHS). The RoHS certificate can be downloaded from www.fractusantennas.com. 4.2. SPECIFICATIONS FOR THE INK Next figure shows the correct colors of the antenna: Acceptable color range Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 8 USER MANUAL GeofindTM (FR05-S1-E-0-103) 4.3. ANTENNA FOOTPRINT (as used in the evaluation board) This antenna footprint applies for the reference evaluation board described on page 5 of this User Manual. Measure mm A 1.6 B 2.3 C 7.2 D 5.8 Tolerance: 0.2 mm Figure 4 - Antenna Footprint Details. Other PCB form factors and configurations may require a different feeding configuration, feeding line dimensions and clearance areas. If you require support for the integration of the antenna in your design, please contact info@fractusantennas.com. 5. MATCHING NETWORK The specs of a Fractus Antennas standard antenna 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 PI matching network as close as possible to the antenna feeding point. Do it in the ground plane area, not in the clearance area. This is a degree of freedom to tune the antenna once the design is finished and taking into account all elements of the system (batteries, displays, covers, etc). Matching Network for the Evaluation Board Value 3.7 pF Part Number GJM1555C1H3R7WB01 Figure 5 - Matching network implemented in the evaluation Board. Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 9 USER MANUAL GeofindTM (FR05-S1-E-0-103) 6. ASSEMBLY PROCESS Figure 6 shows the back and front view of the GeofindTM chip antenna, and indicates the location of the feeding point and the mounting pads: Mounting Pads (2, 3, 4): solder the antenna mounting pads to the soldering pads on the PCB. These pads must NOT be grounded. 3 4 2 1 Feed Pad (1): the black circle on the top of the antenna indicates the position of the feed pad in the bottom. Align the feed point with the feeding line on the PCB. See Figure 1. Figure 6 - Pads of the GeofindTM chip antenna. As a surface mount device (SMD), this antenna is compatible with industry standard soldering processes. The basic assembly procedure for this antenna is as follows: 1. Apply a solder paste to the pads of the PCB. Place the antenna on the board. 2. Perform a reflow process according to the temperature profile detailed in Figure 8 on page 11. 3. After soldering the antenna to the circuit board, perform a cleaning process to remove any residual flux. Fractus Antennas recommends conducting a visual inspection after the cleaning process to verify that all reflux has been removed. The drawing below shows the soldering details obtained after a correct assembly process: Antenna Antenna Solder Paste ~ 0.1* mm PCB PCB Figure 7 - Soldering Details. NOTE(*): Solder paste thickness after the assembly process will depend on the thickness of the soldering stencil mask. A stencil thickness equal to or larger than 127 microns (5 mils) is required. Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 10 USER MANUAL GeofindTM (FR05-S1-E-0-103) The GeofindTM chip antenna should be assembled following either Sn-Pb or Pb-free assembly processes. According to the Standard IPC/JEDEC J-STD-020C, the temperature profile suggested is as follows: Phase RAMP-UP PREHEAT REFLOW PEAK RAMP-DOWN Profile features Pb-Free Assembly (SnAgCu) Avg. Ramp-up Rate (Tsmax to Tp) 3 C / second (max.) - Temperature Min (Tsmin) 150 C - Temperature Max (Tsmax) 200 C - Time (tsmin to tsmax) 60-180 seconds - Temperature (TL) 217 C - Total Time above TL (tL) 60-150 seconds - Temperature (Tp) 260 C - Time (tp) 20-40 seconds Rate 6 C/second max Time from 25 C to Peak Temperature 8 minutes max Table 3 - Recommended soldering temperatures. Next graphic shows temperature profile (grey zone) for the antenna assembly process in reflow ovens. Figure 8 - Temperature profile. Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 11 USER MANUAL GeofindTM (FR05-S1-E-0-103) 7. PACKAGING The GeofindTM chip antenna is available in tape and reel packaging. Measure W A0 B0 K0 B1 D D1 Wmax E F K P P0 P2 mm 16.0 0.3 10.5 0.1 10.5 0.1 1.5 0.1 11.1 0.1 2.0 0.1 2.0 0.1 16.3 1.7 0.1 7.5 0.1 1.8 0.1 12.0 0.1 4.0 0.1 2.0 0.1 Figure 9 - Tape Dimensions and Tolerances. Figure 10 - Images of the tape. Measure A max G t max mm 330.0 1.0 17.5 0.2 21.5 0.2 Reel Capacity: 2500 antennas Figure 11 - Reel Dimensions and Capacity. Last updated on January 2018 (c) 2018 FRACTUS ANTENNAS, S.L. - 12