Antennas. From theory to practice by Yi Huang

By Yi Huang

Practical, concise and whole reference for the fundamentals of recent antenna design

Antennas: from thought to Practice discusses the fundamentals of recent antenna layout and thought. constructed particularly for engineers and architects who paintings with radio communications, radar and RF engineering, this ebook deals functional and hands-on remedy of antenna idea and methods, and gives its readers the talents to examine, layout and degree a variety of antennas.

Key features:

  • Provides thorough assurance at the fundamentals of transmission strains, radio waves and propagation, and antenna research and design
  • Discusses commercial usual layout software program instruments, and antenna size apparatus, amenities and techniques
  • Covers electrically small antennas, cellular antennas, UWB antennas and new fabrics for antennas
  • Also discusses reconfigurable antennas, RFID antennas, Wide-band and multi-band antennas, radar antennas, and MIMO antennas
  • Design examples of assorted antennas are provided
  • Written in a pragmatic and concise demeanour via authors who're specialists in antenna layout, with event from either academia and industry

This e-book may be a useful source for engineers and architects operating in RF engineering, radar and radio communications, looking a finished and functional creation to the fundamentals of antenna layout. The publication is also used as a textbook for complicated scholars coming into a career during this box

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Sample text

E. , 1985. [2] J. D. Kraus and D. A. , 1999. 1 What wireless communication experiment did H. Hertz conduct in 1887? Use a diagram to illustrate your answer. 2 Use an example to explain what a complex number means in our daily life. 3 Given vectors A = 10xˆ + 5yˆ + 1ˆz and B = 5ˆz, find a. the amplitude of vector A; b. the angle between vectors A and B; c. the dot product of these two vectors; d. a vector which is orthogonal to A and B. 4 Given vector A = 10 sin(10t + 10z)xˆ + 5y, ˆ find a. ∇ rA; b.

E. 98 d B for l = 0 and λ/4, and actually any length of such a transmission line. 5: Reflection coefficient and return loss of a low-loss transmission line. 2 Np/m at 1 GHz. a. What is the voltage reflection coefficient for l = 0 and λ/4, respectively? b. Plot the return loss as a function of the line length. 5. 2 Np/m. 5 a. 1952 Z L + Z0 This means that not only the phase of the reflection coefficient but also the amplitude is changed when the length of the transmission line is increased by a quarter-wavelength.

3 Given vectors A = 10xˆ + 5yˆ + 1ˆz and B = 5ˆz, find a. the amplitude of vector A; b. the angle between vectors A and B; c. the dot product of these two vectors; d. a vector which is orthogonal to A and B. 4 Given vector A = 10 sin(10t + 10z)xˆ + 5y, ˆ find a. ∇ rA; b. ∇× A; c. (∇ r∇) A; d. 5 Vector E = 10e j (10t−10z) x. ˆ a. find the amplitude of E; b. plot the real part of E as a function of t; c. plot the real part of E as a function of z; d. explain what this vector means. 6 Explain why mobile phone service providers have to pay license fees to use the spectrum.

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