分类：天线资料    下载：1    浏览：637    时间：2022-11-22

ASIN ‏ : ‎ B097X7LY38 Publisher ‏ : ‎ Independently published (June 27, 2021) Language ‏ : ‎ English Paperback ‏ : ‎ 192 pages ISBN-13 ‏ : ‎ 979-8527735147 Communications and information systems (CIS) support collecting, processing, and exchanging information. CIS automate routine functions, freeing commanders and staffs to focus on the aspects of command and control that require experience, judgment, and intuition. Personnel who install, operate, and maintain CIS play a key role in the command and control of the Marine airground task force (MAGTF). It is an understatement to say that the success of the MAGTF in the modern battlespace depends on the effective employment of CIS

分类：天线资料    下载：1    浏览：1259    时间：2022-11-22

Zhi Ning CHEN Kwai Man LUK Design Antennas for Modern Wireless Communications Systems Written by a global team of expert contributors, this book offers complete details on the wide range of antennas used in today's wireless communication networks. Coverage includes the most popular applications in WWAN (GSM, CDMA, and WCDMA), WLAN (Bluetooth and WiFi), WMAN (WiMAX), and WPAN (UWB and RFID). Antennas for Base Stations in Wireless Communications presents a full picture of modern base station antenna technology--from fundamentals and parameters to engineering and advanced solutions--and highlights new technologies in antenna design with enhanced performance. Real-world case studies provide you with practical examples that can be applied to your own system designs. Apply measurement techniques for various parameters Enable frequency re-use and channel capacity optimization in mobile radio networks Design antennas for mobile communications-CDMA, GSM, and WCDMA Implement advanced antenna technologies for GSM base stations Facilitate enhanced system capacity Design unidirectional antennas, including directed dipole, wideband patch, and complementary antennas Optimize antenna designs for WLAN (WiFi) applications Design antennas for Wireless Personal Area Network (WPAN) applications, including RFID and UWB

分类：业余无线电HAM    下载：1    浏览：703    时间：2022-11-22

第 3 版 2010 年 6 月 作者：John Devoldere, ON4UN 和 Mark Demeuleneere, ON4WW 校对和更正：Bob Whelan G3PJT

分类：天线相关    下载：1    浏览：747    时间：2022-11-22

Broadband Planar Antennas Design and Applications Zhi Ning Chen and Michael Y. W. Chia Both of Institute for Infocomm Research, Singapore The increasing demand for wireless communications has revolutionised the lifestyle of today’s society and one of the key components of wireless technology is antenna design.  Broadband planar antennas are the newest generation of antennas boasting the attractive features required, such as broad operating bandwidth, low profile, light weight, low cost and ease of integration into arrays or Radio Frequency (RF) circuits, to make them ideal components of modern communications systems. Research into small and broadband antennas has been spurred by the rapid development of portable wireless communication devices such as cell phones, laptops and personal digital assistants. This all-encompassing volume, Broadband Planar Antennas: Design and Applications, systematically describes the techniques for all planar antennas from microstrip patch antennas, suspended plate antennas and planar inverted-L/F antennas to planar dipole antennas. Also discussed are some of the most recent outcomes such as broadband antenna issues in promising ultra-wideband applications. Clearly describes the fundamentals of planar antennas and categorises them according to their radiation characteristics Introduces the advanced progress in broadband planar antennas for modern wireless communications Includes a wealth of case studies, design guidelines, figures and tables This text is essential reading for antenna, RF and microwave engineers and manufacturers within the telecommunications industry. Its highly accessible approach will also appeal to researchers, postgraduate students and academic lecturers.

分类：天线相关    下载：1    浏览：896    时间：2022-11-22

首次出版时间： 2001 年 作者： 自茨乐·S·沃谢尔， Domine Leenaerts， J·凡·德尔·唐 Circuit Design for RF Transceivers covers key building blocks which are needed to make an integrated transceiver for wireless and cellular applications, that is low-noise amplifiers, mixers, voltage controlled oscillators, RF power amplifiers and phase-locked loop systems.

分类：天线相关    下载：1    浏览：1352    时间：2022-11-22

A WILEY-INTERSCIENCE PUBLICATION 首次出版时间： 2002 年 作者： Kin-Lu Wong TABLE OF CONTENTS Preface. 1. Introduction and Overview. 1.1 Introduction. 1.2 Compact Microstrip Antennas. 1.3 Compact Broadband Microstrip Antennas. 1.4 Compact Dual-Frequency Microstrip Antennas. 1.5 Compact Dual-Polarized Microstrip Antennas. 1.6 Compact Circularly Polarized Microstrip Antennas. 1.7 Compact Microstrip Antennas with Enhanced Gain. 1.8 Broadband Microstrip Antennas. 1.9 Broadband Dual-Frequency and Dual-Polarized Microstrip Antennas. 1.10 Broadband and Dual-Band Circularly Polarized Microstrip Antennas. 2. Compact Microstrip Antennas. 2.1 Introduction. 2.2 Use of a Shorted Patch with a Thin Dielectric Substrate. 2.3 Use of a Meandered Patch. 2.4 Use of a Meandered Ground Plane. 2.5 Use of a Planar Inverted-L Patch. 2.6 Use of an Inverted U-Shaped or Folded Patch. 3. Compact Broadband Microstrip Antennas. 3.1 Introduction. 3.2 Use of a Shorted Patch with a Thick Air Substrate. 3.3 Use of Stacked Shorted Patches. 3.4 Use of Chip-Resistor and Chip-Capacitor Loading Technique. 3.5 Use of a Slot-Loading Technique. 3.6 Use of a Slotted Ground Plane. 4. Compact Dual-Frequency and Dual-Polarized Microstrip Antennas. 4.1 Introduction. 4.2 Some Recent Advances in Regular-Size Dual-Frequency Designs. 4.3 Compact Dual-Frequency Operation with Same Polarization Planes. 4.4 Compact Dual-Frequency Operation. 4.5 Dual-Band or Triple-Band PIFA. 4.6 Compact Dual-Polarized Designs. 5. Compact Circularly Polarized Microstrip Antennas. 5.1 Introduction. 5.2 Designs with a Cross-Slot of Unequal Arm Lengths. 5.3 Designs with a Y-Shaped Slot of Unequal Arm Lengths. 5.4 Designs with Slits. 5.5 Designs with Spur Lines. 5.6 Designs with Truncated Corners. 5.7 Designs with Peripheral Cuts. 5.8 Designs with a Tuning Stub. 5.9 Designs with a Bent Tuning Stub. 5.10 Compact CP Designs with an Inset Microstrip-Line Feed. 6. Compact Microstrip Antennas with Enhanced Gain. 6.1 Introduction. 6.2 Compact Microstrip Antennas with High-Permittivity Superstrate. 6.3 Compact Microstrip Antennas with Active Circuitry. 7. Broadband Microstrip Antennas. 7.1 Introduction. 7.2 Use of Additional Microstrip Resonators. 7.3 Microstrip Antennas with an Air Substrate. 7.4 Broadband Slot-Loaded Microstrip Antennas. 7.5 Broadband Microstrip Antennas with an Integrated Reactive Loading. 7.6 Broadband Microstrip Antennas with Reduced Cross-Polarization Radiation. 8. Broadband Dual-Frequency and Dual-Polarized Microstrip Antennas. 8.1 Introduction. 8.2 Broadband Dual-Frequency Microstrip Antennas. 8.3 Broadband Dual-Polarized Microstrip Antennas. 9. Broadband and Dual-Band Circularly Polarized Microstrip Antennas. 9.1 Introduction. 9.2 Broadband Single-Feed Circularly Polarized Microstrip Antennas. 9.3 Broadband Two-Feed Circularly Polarized Microstrip Antennas. 9.4 Broadband Four-Feed Circularly Polarized Microstrip Antennas. 9.5 Dual-Band Circularly Polarized Microstrip Antennas. Index.

分类：天线资料    下载：1    浏览：768    时间：2022-11-22

Communications and information systems (CIS) support collecting, processing, and exchanging information. CIS automate routine functions, freeing commanders and staffs to focus on the aspects of command and control that require experience, judgment, and intuition. Personnel who install, operate, and maintain CIS play a key role in the command and control of the Marine airground task force (MAGTF). It is an understatement to say that the success of the MAGTF in the modern battlespace depends on the effective employment of CIS.

分类：天线相关    下载：1    浏览：775    时间：2022-11-22

首次出版时间： 2005 年 作者： 文森特·F·福斯科 本文旨在向新工程师和本科生介绍天线主题。它是对该主题的节奏适中的低层次介绍，不需要先前的电磁理论知识。此外，循序渐进的数学方法非常适合那些没有良好数学背景的人。它很好地介绍了该主题，但又不过分详细，并且包括一些非核心主题，以使学生对技术有一个很好的了解

分类：天线资料    下载：1    浏览：638    时间：2022-11-24

ANSYS Training Manual

分类：设计开发    下载：1    浏览：1094    时间：2022-11-24

Second Edition JIA-SHENG HONG

分类：设计开发    下载：1    浏览：897    时间：2022-12-27

TI培训电子书籍系列 降压稳压器是一种能使输出电压降低，然后通过连接到误差放大器反相输入端的分压电阻采样，误差放大器的同相输入端连接到一个参考电压的稳压器。降压稳压器应用在电缆调制解调器、等离子电子、数据设备通信、机器人、DC/DC电源、FPGA电源、机顶盒、LCD监控器、路由器、工业应用、医疗和自动化测试设备等许多方面。 降压稳压器由调压电路、控制电路、及伺服电机等组成，当输入电压或负载变化时，控制电路进行取样、比较、放大，然后驱动伺服电机转动，使调压器碳刷的位置改变，通过自动调整线圈匝数比，从而保持输出电压的稳定。容量较大的降压稳压器，还采用电压补偿的原理工作。 《降压稳压器基础架构》电子书共分为六章，从最简单的一种开关电源结构--降压开关稳压器开篇，述及多相降压稳压器、迟滞降压稳压器、恒定导通时间(COT)降压稳压器、电流/仿真电路模式降压稳压器、电压模式稳压器共六个类型稳压器的结构与原理。

分类：产品资料    下载：1    浏览：814    时间：2022-12-27

第二代防火墙销售许可证增强级