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CC天线DK和天线测量综述

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  • 日期: 2018-05-23
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标签: CC天线

CC-Antenna-DK and Antenna Measurements Summary。

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CCAntennaDK and Antenna Measurements Summary Design Note DN031 By Richard Wallace Keywords 169 MHz 136 240 MHz Antenna 315 MHz 273 348 MHz Antenna 433 MHz 387 510 MHz Antenna 868 MHz 779 960 MHz Antenna 915 MHz 779 960 MHz Antenna 2440 MHz Antenna PCB Antenna Wire Antenna 1 Introduction The main purpose of the CCAntennaDK is to ease the decision for which type of low cost antenna can be implemented as well as give an estimation of the performance that......

CC-Antenna-DK and Antenna Measurements Summary Design Note DN031 By Richard Wallace Keywords • 169 MHz (136 – 240 MHz) Antenna • 315 MHz (273 – 348 MHz) Antenna • 433 MHz (387 – 510 MHz) Antenna • 868 MHz (779 – 960 MHz) Antenna • 915 MHz (779 – 960 MHz) Antenna • 2440 MHz Antenna • PCB Antenna • Wire Antenna 1 Introduction The main purpose of the CC-Antenna-DK is to ease the decision for which type of low cost antenna can be implemented as well as give an estimation of the performance that can be achieved. The frequency range of the antennas is from 136 MHz to 2480 MHz. The A4 sized PCB panel contains 16 different boards; 13 antenna designs and 3 boards for calibration purposes. Each board has been v-cut and can be snapped out of the PCB panel. All antennas are tuned for connecting to an EM board on the EB platform. A matching network is used on each antenna design so the antenna boards can matched for other GND sizes than the EB board. Additionally, this document is to collect the various antenna measurements that have been performed and to compare the results obtained in an the ambition with • Ceramic Chip Antenna • CC-Antenna-DK • Dual Band Antenna (868 & 2440 MHz) • Mitsubishi Chip Antenna • Pulse Chip Antenna • Helical Wire Antenna • Pulse Helical Wire Antenna overview format. Terminology, antenna characteristics, fundamentals of antenna design, and measurement procedures are covered in the Antenna Selection Guide [18]. For each antenna, a CTIA measurement summary is provided in this report with a link to the full measurement CTIA report. DN6xx is designated for CTIA measurement reports. Choosing the correct antenna for the application is crucial if the optimum range is to be achieved. Similarly, for a given distance, the power can be reduced on the transmitter side if the optimum antenna is chosen. Antennas are categorized under the operating frequency (169 MHz, 315 MHz, 433 MHz, 868 / 915 MHz or 2.44 GHz) and type of antenna (PCB Antennas, Chip Antennas, and Wire Antennas). The main focus is on PCB, Wire and Chip antennas, since these are mainly used in high volume products. then the SWRA328 Page 1 of 55 Design Note DN031 Table of Contents KEYWORDS 1 INTRODUCTION 2 ABBREVIATIONS 3 CC-ANTENNA-DK REV 1.0.0. BOARD DESCRIPTION 3.1 Board #1: “Short” Calibration Board Board #2: “Load” Calibration Board Board #3: Mitsubishi Chip Antenna – 868 MHz Board #4: Pulse Chip Antenna – 868 MHz Board #5: Large Flexi Antenna – 868 MHz Board #6: Dual Band Antenna – 868 MHz & 2440 MHz Board #7: Inverted F-Antenna – 2440 MHz Board #8: Pulse Helical Wire Antenna – 433 MHz Board #9: “Open” Calibration Board Board #10: Small Flexi Antenna – 868 MHz Board #11: Helical Wire Antenna – 915 MHz Board #12: Mitsubishi Chip Antenna – 433 MHz Board #13: Antenna Factor Helical Wire Antenna – 433 MHz Board #14: Antenna Factor Helical Wire Antenna – 169 MHz Board #15: Meandered Antenna – 2440 MHz Board #16: Pulse Helical Wire Antenna – 315 MHz 4 ANTENNA MEASUREMENT SUMMARY OVER-THE-AIR (OTA) TESTING XYZ Co-ordinates for Antenna Diagrams 169 MHZ BAND PCB Antennas (169 MHz) Chip Antennas (169 MHz) Wire Antennas (169 MHz) ANTENNA EFFICIENCY SUMMARY (169 MHZ) 315 MHZ BAND ANTENNA EFFICIENCY SUMMARY (315 MHZ) 433 MHZ BAND PCB Antennas (315 MHz) Chip Antennas (315 MHz) Wire Antennas (315 MHz) PCB Antennas (433 MHz) Chip Antennas (433 MHz) Wire Antennas (433 MHz) ANTENNA EFFICIENCY SUMMARY (433 MHZ) 868 / 915 / 955 MHZ BAND PCB Antennas (868 – 955 MHz) Chip Antennas (868 – 955 MHz) Wire Antennas (868 – 955 MHz) ANTENNA EFFICIENCY SUMMARY ON EB (868 – 955 MHZ) ANTENNA EFFICIENCY SUMMARY – STAND ALONE (868 – 955 MHZ) 2.4 GHZ BAND PCB Antennas (2.4 GHz) Chip Antennas (2.4 GHz) Wire Antennas (2.4 GHz) ANTENNA EFFICIENCY SUMMARY ON EB (2.4 GHZ) ANTENNA EFFICIENCY SUMMARY – STAND ALONE (2.4GHZ) 3.1.1 3.1.2 3.1.3 3.1.4 3.1.5 3.1.6 3.1.7 3.1.8 3.1.9 3.1.10 3.1.11 3.1.12 3.1.13 3.1.14 3.1.15 3.1.16 4.1 4.2 4.1.1 4.2.1 4.2.2 4.2.3 4.3 4.4 4.5 4.6 4.7 4.8 4.4.1 4.4.2 4.4.3 4.6.1 4.6.2 4.6.3 4.8.1 4.8.2 4.8.3 4.9 4.10 4.11 4.11.1 4.11.2 4.11.3 4.12 4.13 5 CONCLUSION 6 REFERENCES 7 GENERAL INFORMATION DOCUMENT HISTORY 7.1 SWRA328 Page 2 of 55 1 1 3 4 4 7 8 9 11 13 15 18 20 22 23 25 27 29 31 33 35 37 37 38 39 39 39 40 40 41 41 41 42 42 43 43 43 44 44 45 45 46 47 48 48 49 49 51 51 52 52 53 54 55 55 2 Abbreviations Design Note DN031 BOM BW DK DUT EB EIRP EM CITA NC NHPRP NHPRP45 OTA PCB SWR TRP Bill Of Materials Bandwidth Development Kit Device Under Test Evaluation Board Effective Isotropic Radiated Power Evaluation Module Cellular Telecommunications Industry Association Not Connected Near Horizon Partial Radiated Power Near Horizon Partial Radiated Power within 45 degrees angle Over The Air Printed Circuit Board Standing Wave Ratio Total Radiated Power SWRA328 Page 3 of 55 3 CC-Antenna-DK Rev 1.0.0. Design Note DN031 3.1 Board Description The CC-Antenna-DK PCB panel contains 16 different boards; 13 antenna designs and 3 boards for calibration purposes. Each board has been v-cut and can be snapped out of the PCB panel, shown in Figure 1. Each board has a height of 95 mm and a width of 20 mm to 45 mm. The PCB is 1.6 mm thick and has a dielectric of 4.2. The schematic (PDF), layout (PDF and gerbers), PCB stack-up (PDF) are provided in the CC- Antenna-DK documentation in the zip file [19]. Figure 1: CC-Antenna-DK Board Showing Top Metal Layer, Silkscreen and V-cut Track All Low Power Wireless chips have their own specific reference designs. Each reference design is implemented on an Evaluation Module (EM). Figure 2 shows a typical EM that is used for CC2500 ref design. Figure 2. Picture of CC2500 Evaluation Module (EM) SWRA328 Page 4 of 55 The EM board is inserted onto the main Evaluation Board platform so the reference design implemented on the EM can be evaluated. The EM board is inserted onto the top, right side of the SmartRF04EB board as can be seen in Figure 3. Design Note DN031 Figure 3. Picture of SmartRF04EB Evaluation Board (EB) All antennas have been measured and tuned for connecting to an EM board inserted onto an EB board unless other specified; this is illustrated in Figure 4. Figure 4: Connectivity of Antenna Board #6 to a CC1101 EM Board on the EB Platform SWRA328 Page 5 of 55
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