eBook: Wide-Range Antennas (DRM PDF)
 
電子書格式: DRM PDF
作者: Boris Levin 
分類: Electrical engineering ,
Radar ,
WAP (wireless) technology ,
Environmental science, engineering & technology  
書城編號: 20953057


售價: $598.00

購買後立即進貨, 約需 1-4 天

 
 
製造商: CRC Press
出版日期: 2019/02/21
頁數: 254
ISBN: 9781351043236
 
>> 相關實體書

商品簡介
Expanding the range of antenna frequency is the main objective of this book. Solutions proposed are based on the development of new theoretical methods for analyzing and synthesizing antennas. The book shows that concentrated capacitive loads connected along linear and V-antennas provide a high level of matching with a cable over a wide frequency range and improves directional characteristics of antennas, i.e. increases the communication distance.New theoretical methods are proposed for analysis and synthesis of antennas under consideration: 1) method of calculating directional characteristics of radiators with a given current distribution, and 2) method of electrostatic analogy for calculating mutual and total fields of complex multi-element radiating structures. These methods allow us to obtain optimal directional characteristics for director-type antennas (arrays of Yagi-Uda) and log-periodic antennas with concentrated capacitances and show that use of capacitors makes it possible to extend the frequency range of the director antennas and to decrease dimensions of the log-periodic antennasMulti-element (flat and three-dimensional) self-complementary antennas with different variants of connecting generator poles and cable wires to antenna elements are proposed, which improves the matching with a cable. Characteristics of flat structures are compared with characteristics of volume structures: conical, parabolic, and located on a pyramid edges.The book describes new versions of transparent antennas, antennas for cellular communication, multi-tier and multi-radiator antennas, and much more.
Boris Levin 作者作品表

eBook: Antennas: Rigorous Methods of Analysis and Synthesis (DRM PDF)

eBook: Antennas: Rigorous Methods of Analysis and Synthesis (DRM EPUB)

eBook: Wide-Range Antennas (DRM EPUB)

eBook: Wide-Range Antennas (DRM PDF)

eBook: Antenna Engineering: Theory and Problems (DRM EPUB)

eBook: Antenna Engineering: Theory and Problems (DRM PDF)

* 以上資料僅供參考之用, 香港書城並不保證以上資料的準確性及完整性。
* 如送貨地址在香港以外, 當書籍/產品入口時, 顧客須自行繳付入口關稅和其他入口銷售稅項。

 

 

 

  我的賬戶 |  購物車 |  出版社 |  團購優惠
加入供應商 |  廣告刊登 |  公司簡介 |  條款及細則
 
  香港書城 版權所有 私隱政策聲明
 
  顯示模式: 電腦版 (改為: 手機版)