Preface vii 1. Radio signals on the move 1 2. Antenna basics 19 3. Wire, connection, grounds, and all that 49 4. Marconi and other unbalanced antennas 69 5. Doublets, dipoles, and other Hertzian antennas 87 6. Limited space antennas 118 7. Large loo
A dipole antenna is a radio antenna that can be made of a simple wire, with a center-fed driven element. It consists of two metal conductors of rod or wire, oriented parallel and collinear with each other (in line with each other), with a small spac
相控阵天线讲的深入浅出，很有参考价值 1 Radiation 1 1.1 The Early History of Electricity and Magnetism 1 1.2 James Clerk Maxwell, The Union of Electricity and Magnetism 8 1.3 Radiation by Accelerated Charge 10 1.4 Reactive and Radiating Electromagnetic Fields 18 Refer
This application note describes a 2.4 GHz Yagi PCB Directional Antenna that can be used with any 2.4 GHz radio reference design that has a 50 ohm RF interface.
邦纳 Wireless Sensorspdf,Consists of a radio frequency network built around a Gateway system controller,
one or more remotelylocated Nodes and integrated I/O.
Installs where conduit/wiring is not practical Integrates with existing process
and control
一个渐进式的框架，用于构建高效且可扩展的服务器端应用程序，受到极大启发。
描述
框架Typescr ipt入门资料库。
安装
$ npm install
运行应用
# development
$ npm run start
# watch mode
$ npm run start:dev
# production mode
$ npm run start:prod
测试
# unit tests
$ npm run test
# e2e tests
$ npm run test:e2e
# te
In this letter, a compact pattern-reconfigurable filtering microstrip antenna is presented with broad bandwidth, good selectivity at the passband edge, and flat gain-frequency response. The pattern-reconfigurable filtering antenna has four resonant m
