he products that drive the wireless communication industry, such as cell phones and pagers, employ circuits that operate at radio and microwave frequencies. Following on from a highly successful first edition, the second edition provides readers with a detailed introduction to RF and microwave circuits. Throughout, examples from real-world devices and engineering problems are used to great effect to illustrate circuit concepts. * Takes a top-down approach, describing circuits in the overall context of communication systems. * Presents expanded coverage of waveguides and FT mixers. * Discusses new areas such as oscillators design and digital communication. *An Instructor's Manual presenting detailed solutions to all the problems in the book is available from the Wiley editorial department.

Measuring the electromagnetic properties of materials has important applications in many fields. In this paper, two electrically small sensors based on the split ring resonators (SRRs) with extended long legs, i.e., two-layer and three-layer magnetic coupled SRRs, are proposed to measure the permittivity of small samples of unknown materials. By virtue of several merits, such as extremely compact size for two-layer and three-layer magnetic coupled SRRs, respectively), high quality factor (Q), and stable resonance. Especially, the proposed three-layer magnetic coupled sensor with opposite splits on the SRRs is able to further improve the quality factor and have better stability compared with the two-layer coupled sensor. By different shifting resonant frequencies instead of the single ones and the polynomial fitting method, the proposed sensors can accuratelycalculatetheunknownpermittivity.Simulatedandexperimentalresultshavevalidatedtheefficacy of the proposed approach and designs. With the features of compact size and lower far-field radiation, the proposed resonators can be combined with various permittivity measurement algorithms to improve the measurement accuracy in a wide range of environments beyond the specific experimental setup.

by Jia ShengHong 滤波器设计经典教材。

Microwave Engineering 4ed_Wiley_2012

Microwave Engineering (3rd Edtion)《微波工程》D.M.Pozar英文原版part3(共3部分) 中文版的错漏不少，可以参考英文原版。 仅供对照，版权归原作者所有。

开源的模块 microwave-networks

Microstrip Filters for RF/Microwave Applications(射频/微波微带滤波器的应用）

Handbook of RF and Microwave Power Amplifiers

Rf And Microwave Power Amplifier Design

非常好的书籍，对于做放大器的同学非常有帮助