pdf

CSR蓝牙芯片--蓝牙天线集成到PCB上的设计说明(英文版)

  • 1星
  • 日期: 2018-05-16
  • 大小: 4.76MB
  • 所需积分:1分
  • 下载次数:0
  • favicon收藏
  • rep举报
  • 分享
  • free评论
标签: CSR蓝牙PCB

CSR蓝牙芯片--蓝牙天线集成到PCB上的设计说明(英文版)。

文档内容节选

All Applications Integrating an Antenna into a Product Application Note Issue 2 Cambridge Silicon Radio Limited 2013 Confidential Information This Material is Subject to CSRs Nondisclosure Agreement Page 1 of 38 CS217946ANP2 wwwcsrcom Document History Revision Date History 1 2 04 JUN 13 Original publication of this document 11 JUL 13 Minor editorial updates throughout Updated to latest CSR branding Contacts General information Information on this product Customer support for this product More ......

All Applications Integrating an Antenna into a Product Application Note Issue 2 © Cambridge Silicon Radio Limited 2013 Confidential Information - This Material is Subject to CSR’s Non-disclosure Agreement Page 1 of 38 CS-217946-ANP2 www.csr.com Document History Revision Date History 1 2 04 JUN 13 Original publication of this document 11 JUL 13 Minor editorial updates throughout. Updated to latest CSR branding. Contacts General information Information on this product Customer support for this product More detail on compliance and standards Help with this document www.csr.com sales@csr.com www.csrsupport.com product.compliance@csr.com comments@csr.com A l l A p p l i c a t i o n s I n t e g r a t i n g N o t e a n A n t e n n a i n t o a P r o d u c t A p p l i c a t i o n © Cambridge Silicon Radio Limited 2013 Confidential Information - This Material is Subject to CSR’s Non-disclosure agreement Page 2 of 38 CS-217946-ANP2 www.csr.com Trademarks, Patents and Licences Unless otherwise stated, words and logos marked with ™ or ® are trademarks registered or owned by CSR plc and/or its affiliates. Bluetooth® and the Bluetooth logos are trademarks owned by Bluetooth SIG, Inc. and licensed to CSR. IEEE Std 802.11, 802.11a, 802.11b, 802.11b-Cor1, 802.11d, 802.11e, 802.11F, 802.11g, 802.11h, 802.11i, 802.11j, 802.11k, 802.11m, 802.11ma, 802.11-REVma, 802.11mb, 802.11REVmb, 802.11n, 802.11p, 802.11r, 802.11s, 802.11T, 802.11v, 802.11u, 802.11w, 802.11y, 802.11z, 802.11aa, 802.11ac, 802.11ad, 802.11ae, 802.11af, 802.11ah, 802.11ai, 802.11.1 and 802.11.2 are trademarks of the IEEE. Wi-Fi®, Wi-Fi Alliance®, WMM®, Wi-Fi Protected Access® (WPA), the Wi-Fi CERTIFIED logo, the Wi-Fi logo, the Wi-Fi ZONE logo, and the Wi-Fi Protected Setup logo are registered trademarks of the Wi-Fi Alliance; Wi-Fi CERTIFIED™, Wi-Fi Direct™, Wi-Fi Protected Setup™, Wi-Fi Multimedia™, and the Wi-Fi Alliance logo are trademarks of the Wi-Fi Alliance. Other products, services and names used in this document may have been trademarked by their respective owners. The publication of this information does not imply that any licence is granted under any patent or other rights owned by CSR plc or its affiliates. CSR reserves the right to make technical changes to its products as part of its development programme. While every care has been taken to ensure the accuracy of the contents of this document, CSR cannot accept responsibility for any errors. Life Support Policy and Use in Safety-critical Compliance CSR’s products are not authorised for use in life-support or safety-critical applications. Use in such applications is done at the sole discretion of the customer. CSR will not warrant the use of its devices in such applications. Performance and Conformance Refer to www.csrsupport.com for compliance and conformance to standards information. © Cambridge Silicon Radio Limited 2013 Confidential Information - This Material is Subject to CSR’s Non-disclosure agreement Page 3 of 38 CS-217946-ANP2 www.csr.com N o t e A l l A p p l i c a t i o n s I n t e g r a t i n g a n A n t e n n a i n t o a P r o d u c t A p p l i c a t i o n Contents Document History .........................................................................................................................................................2 Contacts........................................................................................................................................................................2 Trademarks, Patents and Licences ..............................................................................................................................3 Life Support Policy and Use in Safety-critical Compliance............................................................................................3 Performance and Conformance....................................................................................................................................3 Contents .......................................................................................................................................................................4 Tables, Figures and Equations .....................................................................................................................................5 Introduction............................................................................................................................................................6 1. 1.1. General...........................................................................................................................................................6 1.2. Scope .............................................................................................................................................................6 2. Concepts ...............................................................................................................................................................7 2.1. Introduction.....................................................................................................................................................7 2.2. Link Budget.....................................................................................................................................................7 2.3. Radio Propagation..........................................................................................................................................7 2.4. Effective Wavelength....................................................................................................................................10 2.5. Bandwidth.....................................................................................................................................................11 2.6. Small Antennas ............................................................................................................................................11 2.7. Groundplane Size.........................................................................................................................................11 2.8. Field Regions................................................................................................................................................12 2.9. Polarisation...................................................................................................................................................12 Antenna types...........................................................................................................................................12 2.10. Impedance Matching.................................................................................................................................14 2.11. Return Loss & VSWR ...............................................................................................................................15 2.12. 2.13. Antenna Gain............................................................................................................................................16 Transmission Lines ...................................................................................................................................19 2.14. Filters ........................................................................................................................................................21 2.15. Baluns.......................................................................................................................................................21 2.16. 2.17. The Environment.......................................................................................................................................21 Impedance Matching ...........................................................................................................................................22 3.1. Introduction...................................................................................................................................................22 3.2. Equipment Needed.......................................................................................................................................22 Initial Guidance.............................................................................................................................................22 3.3. 3.4. Topology.......................................................................................................................................................23 3.5. Network Analyser Calibration .......................................................................................................................24 3.6. Impedance Matching Step By Step ..............................................................................................................25 4. Design Methodology............................................................................................................................................31 4.1. Overview ......................................................................................................................................................31 4.2. Define the Requirements..............................................................................................................................31 4.3. The Specification..........................................................................................................................................31 4.4. Design and Simulation..................................................................................................................................32 4.5. Prototyping and Matching.............................................................................................................................32 4.6. Measuring Performance ...............................................................................................................................32 Appendix A Smith Chart ...........................................................................................................................................35 Appendix B Example ISM Band Antenna Specification ............................................................................................36 Document References ................................................................................................................................................37 Terms and Definitions.................................................................................................................................................38 3. © Cambridge Silicon Radio Limited 2013 Confidential Information - This Material is Subject to CSR’s Non-disclosure agreement Page 4 of 38 CS-217946-ANP2 www.csr.com N o t e A l l A p p l i c a t i o n s I n t e g r a t i n g a n A n t e n n a i n t o a P r o d u c t A p p l i c a t i o n Tables, Figures and Equations Table 2.1: Examples of Path Loss in dB for the ISM Band ...........................................................................................9 Table 2.2: Example Impedance Mismatch Parameters...............................................................................................16 Table 3.1: Impedance Matching Topologies ...............................................................................................................23 Table 4.1: Example Link Budget .................................................................................................................................33 Figure 2.1: Two-Ray Model Parameters .......................................................................................................................9 Figure 2.2: Two-Ray Model Results............................................................................................................................10 Figure 2.3: Example Printed IFA.................................................................................................................................13 Figure 2.4: Example Meander Line Antenna...............................................................................................................13 Figure 2.5: Chip Antenna............................................................................................................................................13 Figure 2.6: Ceramic Patch Antennas ..........................................................................................................................14 Figure 2.7: Coordinate System & Power Patterns ......................................................................................................16 Figure 2.8: Example E & H Field Locations ................................................................................................................17 Figure 2.9:Typical 2D Radiation Pattern of an IFA Showing Directivity ......................................................................17 Figure 2.10: Typical 3D Radiation Pattern of an IFA Showing Directivity....................................................................18 Figure 2.11: Microstrip Structure.................................................................................................................................20 Figure 2.12: Stripline Structure ...................................................................................................................................20 Figure 2.13: Coplanar Structure..................................................................................................................................21 Figure 3.1: Smith Chart Tuning Transforms................................................................................................................24 Figure 3.2: Antenna Impedance (86 – j209)................................................................................................................25 Figure 3.3: PI Matching Network.................................................................................................................................25 Figure 3.4: Z1 Impedance (24 – j106).........................................................................................................................26 Figure 3.5: Selecting the Topology .............................................................................................................................26 Figure 3.6: Smith Chart Showing the Effect of Adding a Series-L...............................................................................27 Figure 3.7: Final ‘Measured’ Matched Antenna ..........................................................................................................29 Figure 3.8: Final Circuit...............................................................................................................................................29 Figure 3.9: Final ‘Measured’ Return Loss ...................................................................................................................30 © Cambridge Silicon Radio Limited 2013 Confidential Information - This Material is Subject to CSR’s Non-disclosure agreement Page 5 of 38 CS-217946-ANP2 www.csr.com N o t e A l l A p p l i c a t i o n s I n t e g r a t i n g a n A n t e n n a i n t o a P r o d u c t A p p l i c a t i o n
更多简介内容

推荐帖子

msp430f149单片机串口C程序
msp430f149是基于闪存或 ROM 的超低功耗 MCU,提供 8MIPS,工作电压为 1.8V - 3.6V,具有高达 60KB 的闪存和各种高性能模拟及智能数字外设。 超低功耗低至: 0.1μA RAM (保持模式) 0.7μA (实时时钟模式) 200μA/MIPS (工作模式) 在 6μs 之内快速从待机模式唤醒 器件参数: 闪存选项:1KB – 60KB ROM 选项:1KB
Jacktang 【微控制器 MCU】
DP83867E SGMII接口调试经验
最近这段时间在调试SGMII 接口,有些经验分享下。 项目背景是有一颗交换机芯片,除了内置的phy,还预留了一个支持SGMII的MAC接口。 要想实现该MAC接口功能,自然得外挂一个支持SGMII 的phy芯片。使用过两种phy芯片,一个是marvell的88e1512,另一个是TI 的DP83867。 第一次我用88e1512 去实现该功能,但是之前没搞过SGMII,技术文档也
Aguilera 【微控制器 MCU】
MSP430单片机的微功耗中文人机界面设计
     在现代便携式智能仪器或手持设备中,中文人机界面成为一种事实上的行业标准。能显示汉字的图形点阵液晶和可输入数字的小键盘已成为智能设备必不可少的组成部分。同时作为便携式设备基本要求的低功耗特性也贯穿于中文人机界面的设计始终。   这种低功耗中文人机交互界面需要设计者在选取MCU和具体元器件上有特殊考虑。微功耗、小体积应作为选择相关器件的首要要求。   设计中,笔者采用MSP430F149
fish001 【微控制器 MCU】
运算放大器基础知识:有源电路的直流偏置
在本实验中,我们介绍一种有源电路——运算放大器,其某些特性(高输入电阻、低输出电阻和大差分增益)使其成为接近理想的放大器,并且是很多电路应用中的有用构建模块。在本实验中,您将了解有源电路的直流偏置,并探索若干基本功能运算放大器电路。我们还将利用此实验继续培养使用实验室硬件的技能。 材料 ADALM2000主动学习模块 无焊面包板和跳线套件 一个1 kΩ电阻 两个4.7 kΩ电阻 两个1
火辣西米秀 【模拟与混合信号】
在TI.com购买 MSP430开发板的流程说明
本帖写给参与6月2日  >>3小时实战+剖析 TI工程师手把手 带你全面入门MSP430 培训的网友(点此报名培训),说明如何以$4.3价格购买 实战所需的LP-MSP430FR2476(原价$14.99) 、 MSP-EXP430FR2355 (原价$12.99)开发板以及在TI.com上购买需要注意的事项。如阅读本帖后仍无法解决问题,请扫描下方二维码,入群询问。   本
nmg 【微控制器 MCU】
霍尔电流传感器在电信整流器和服务器电源中的应用
电信整流器和服务器电源单元(PSU)中的功率因数校正(PFC)电路和逆变电路都需要将高压侧的电流信号检测到位于低压侧的控制器,因此要用到隔离式电流传感器。隔离式电流检测有多种实现方式,例如电流互感器(CT)、隔离放大器和霍尔效应电流传感器。其中,霍尔效应电流传感器因其简便易用、准确、体积小且具有直流检测能力,成为比较理想的选择。 电流互感器是基于变压器的原理对电流进行采样,使用CT可以检测M
alan000345 【微控制器 MCU】

评论

登录/注册

意见反馈

求资源

回顶部

datasheet推荐 换一换

About Us 关于我们 客户服务 联系方式 器件索引 网站地图 最新更新 手机版 版权声明

北京市海淀区知春路23号集成电路设计园量子银座1305 电话:(010)82350740 邮编:100191

电子工程世界版权所有 京ICP证060456号 京ICP备10001474号 电信业务审批[2006]字第258号函 京公海网安备110108001534 Copyright © 2005-2020 EEWORLD.com.cn, Inc. All rights reserved
$(function(){ var appid = $(".select li a").data("channel"); $(".select li a").click(function(){ var appid = $(this).data("channel"); $('.select dt').html($(this).html()); $('#channel').val(appid); }) })