Fractus Media+™ Ultra Wideband (UWB) Chip Antenna Antenna Part Number: FR05-S1-P-0-107 Any update on new patents linked to this product will appear in http://www.fractus.com/index.php/fractus/patents All information contained within this document is property of Fractus 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. Fractus is an ISO 9001:2008 certified company. All our antennas are lead-free and RoHS compliant. July 2015 Page 1 1999-2015 © FRACTUS, S.A. TABLE OF CONTENTS 1. ANTENNA DESCRIPTION ______________________________________________________ 3 2. QUICK REFERENCE GUIDE _____________________________________________________ 3 3. ELECTRICAL PERFORMANCE ___________________________________________________ 4 3.1. FRACTUS EVALUATION BOARD ______________________________________________ 4 3.2. VSWR AND EFFICIENCY ____________________________________________________ 4 3.3. RADIATION PATTERNS, GAIN AND EFFICIENCY _________________________________ 5 3.4. CAPABILITIES AND MEASUREMENT SYSTEMS ___________________________________ 6 4. MECHANICAL CHARACTERISTICS _______________________________________________ 7 4.1. DIMENSIONS, TOLERANCES & MATERIALS _____________________________________ 7 4.2. COLOUR RANGE FOR THE INK _______________________________________________ 7 4.3. ANTENNA FOOTPRINT (as used in the evaluation board) __________________________ 8 5. MATCHING NETWORK ________________________________________________________ 8 6. ASSEMBLY PROCESS _________________________________________________________ 9 7. PACKAGING _______________________________________________________________ 11 July 2015 Page 2 1999-2015 © FRACTUS, S.A. 1. ANTENNA DESCRIPTION Fractus® Media+ UWB chip antenna is a high-performance, cost-effective antenna designed to meet the requirements of reference designers, OEMs and ODMs considering the Multiband OFDM alliance (MBOA) recommendations for Ultra Wideband devices. The electrical and mechanical characteristics of this small SMD monopole chip antenna ensures design flexibility and optimal performance in devices such as, but not limited to: Wireless USB (W-USB) dongles W-USB enabled devices: digital cameras and video recorders, PC Peripherals, beamers, Mobile Phones, etc... 10.0 mm 0.8 mm 10.0 mm BOTTOM TOP BENEFITS APPLICATIONS UWB Devices Modules Handsets High efficiency Cost-effective Small size Easy to use (pick and place) 2. QUICK REFERENCE GUIDE Technical Features Frequency Range 3.1 – 5 GHz Average Efficiency 84.0 % Peak Gain Radiation Pattern Flatness 3.5 dBi Omnidirectional 2 dB gain variation VSWR <2:1 Weight 0.2 g Temperature Impedance Dimensions (L x W x H) Please contact email@example.com if you require additional information on antenna integration or optimisation on your PCB. -40 to 85 ºC FRACTUS S.A. www.fractus.com Tel: +34 935442690 Fax: +34 935442691 50 Ω 10.0 mm x 10.0 mm x 0.8 mm Table 1 - Technical Features. Measures from the evaluation board (36.5 mm x 20.0 mm x 0.8 mm PCB). See picture in page 5. July 2015 Page 3 1999-2015 © FRACTUS, S.A. 3. ELECTRICAL PERFORMANCE 3.1. FRACTUS EVALUATION BOARD The configuration used in testing the Media+ UWB chip antenna is displayed in Figure 1. A D B Fractus Media+ UWB Chip Antenna 50 Ohms transmission line Ground Plane SMA Connector mm A 23.9 B 20.0 C 36.5 D 10.0 E 12.0 Tolerance: ±0.2mm C E Measure Material: The evaluation board is built on FR4 substrate. Thickness is 0.8 mm Antenna Clearance Figure 1 – Fractus Media+ UWB chip Antenna. See picture in page 5 3.2. VSWR AND EFFICIENCY Graph 1 - VSWR (Voltage Standing Wave Ratio) and Efficiency (%) vs. Frequency (GHz) July 2015 Page 4 1999-2015 © FRACTUS, S.A. 3.3. RADIATION PATTERNS, GAIN AND EFFICIENCY Orientation: Antenna in Plane ZY θ=90º(3.1GHz, 4GHz, 5GHz) Plane XY φ=90º(3.1GHz, 4GHz, 5GHz) Plane YZ φ=0º (3.1GHz, 4GHz, 5GHz) Plane XZ Gain Efficiency Peak Gain 3.5 dBi Average Gain across the band 2.6 dBi Gain Flatness (horizontal plane) < 2 dB Peak Efficiency 92.0 % Average Efficiency across the band 84.0 % Efficiency Range across the band 77.0 % - 92.0 % Table 2 – Antenna Gain and Efficiency within the 3.1 to 5 GHz bandwidth. Measures made in the evaluation board and in the Satimo STARGATE 32 anechoic chamber. July 2015 Page 5 1999-2015 © FRACTUS, S.A. 3.4. CAPABILITIES AND MEASUREMENT SYSTEMS Fractus specialises in designing and manufacturing optimised antennas for wireless applications and providing our clients with RF expertise. We offer turn-key antenna products and antenna integration support to minimise your time requirement and maximize your return on investment during your product development efforts. 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) 0 5 5.5 6 5 330 0 30 -5 Radiation Pattern & Efficiency -10 300 60 -15 -20 -25 -30 270 90 240 120 f=5350MHz 210 SATIMO’s STARGATE 32 150 180 Anechoic and semi-anechoic chambers and full equipped in-house lab July 2015 Page 6 1999-2015 © FRACTUS, S.A. 4. MECHANICAL CHARACTERISTICS 4.1. DIMENSIONS, TOLERANCES & MATERIALS C B A C Note: all the antenna pads (feed pad and mounting pads) have the same dimensions. A E D BOTTOM TOP Figure 2 – Antenna Dimensions and Tolerances Measure mm 10 0.2 Measure D A mm 5 0.2 B 0.8 0.2 E 1.5 0.1 C 1.5 0.1 The white circle located on the top side of the antenna indicates the feed pad. Fractus Media+ UWB chip antenna is compliant with the restriction of the use of hazardous substances (RoHS). The RoHS certificate can be downloaded from http://www.fractus.com/index.php/fractus/documentation 4.2. COLOUR RANGE FOR THE INK The next figure shows the range of the colours in the antenna: Acceptable colour range July 2015 Page 7 1999-2015 © FRACTUS, S.A. 4.3. ANTENNA FOOTPRINT (as used in the evaluation board) This antenna footprint applies for the reference evaluation board described in page 4 of this User Manual. Measure mm A 1.9 B 6.8 C 0.3 D E 6.0 4.5 F 2.8 G 0.5 Tolerance: ±0.2mm Figure 3 – 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 firstname.lastname@example.org 5. MATCHING NETWORK The specs of a Fractus 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 to place 0402 pads 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). July 2015 Page 8 1999-2015 © FRACTUS, S.A. 6. ASSEMBLY PROCESS Figure 4 shows the back and front view of the Fractus Media+ UWB chip antenna and indicates the location of the feeding point and the mounting pads: Mounting Pads (2, 3): solder the antenna mounting pads to the soldering pads on the PCB. These pads must NOT be grounded. 3 2 1 Feed Pad (1): the white 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 4 –Pads of the Fractus Media+ UWB 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 on the pads of the PCB. Place the antenna on the board. 2. Perform a reflow process according to the temperature profile detailed in table 3 figure 6 of page 10. 3. After soldering the antenna to the circuit board, perform a cleaning process to remove any residual flux. Fractus 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 5 - Soldering Details NOTE: Solder paste thickness after the assembly process will depend on the thickness of the soldering stencil mask. A stencil thickness equal or larger than 127 microns (5 mils) is required. July 2015 Page 9 1999-2015 © FRACTUS, S.A. Fractus Media+ UWB chip antenna can be assembled following the Pb-free assembly process. According to the Standard IPC/JEDEC J-STD-020C, the temperature profile suggested is as follows: Phase Profile features Pb-Free Assembly (SnAgCu) RAMP-UP Avg. Ramp-up Rate (Tsmax to Tp) 3 ºC / second (max.) PREHEAT - Temperature Min (Tsmin) - Temperature Max (Tsmax) - Time (tsmin to tsmax) 150 ºC 200 ºC 60-180 seconds REFLOW - Temperature (TL) - Total Time above TL (t L) 217 ºC 60-150 seconds PEAK - Temperature (Tp) - Time (tp) 260 ºC 20-40 seconds RAMP-DOWN Rate 6 ºC/second max. Time from 25 ºC 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 6 – Temperature profile July 2015 Page 10 1999-2015 © FRACTUS, S.A. 7. PACKAGING The Fractus Media+ UWB Chip antenna is available in tape and reel packaging. Figure 7 –Tape dimensions & image including antennas Measure mm Measure mm TAPE WDITH (W) 16.0 ± 0.3 Wmax 16.3 A0 10.5 ± 0.1 E 1.7 ± 0.1 B0 10.5 ± 0.1 F 7.5 ± 0.1 K0 B1 1.5 ± 0.1 11.1 ± 0.1 K P 1.8 ± 0.1 12.0 ± 0.1 D 2.0 ± 0.1 P0 4.0 ± 0.1 D1 2.0 ± 0.1 P2 2.0 ± 0.1 Measure mm A 330 ± 1 G 17.5 ± 0.1 t max 21.5 ± 0.2 Reel Capacity: 2500 antennas. Figure 8 – Reel Dimensions and Capacity July 2015 Page 11 1999-2015 © FRACTUS, S.A.