The Stripline Circulators: Theory and Practice (Hardcover)
暫譯: 帶狀線迴旋器:理論與實務(精裝版)

Joseph Helszajn

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商品描述

Stripline circulator theory and applications from the world's foremost authority

The stripline junction circulator is a unique three-port non-reciprocal microwave junction used to connect a single antenna to both a transmitter and a receiver. Its operation relies on the interaction between an electron spin in a suitably magnetized insulator with an alternating radio frequency magnetic field. In its simplest form, it consists of a microwave planar gyromagnetic resonator symmetrically coupled by three transmission lines.

This book explores the magnetic interaction involved in the stripline circulator's operation, the nature of the microwave resonator shape, and the network problem that arises in coupling the microwave resonator to the microwave circuit. The stripline circulator is an important device met across a wide range of industries, including wireless, military, radar, and satellite communications. The book's design tables are a unique feature, offering valuable design support.

Written by an international authority on non-reciprocal microwave circuits and devices, the book is organized into logical blocks of chapters that focus on specific effects and circuit aspects of the stripline circulator. Among the highlights of coverage are:

  • Spatial shape demagnetizing factors of magnetic insulators

  • Standing wave solutions of wye gyromagnetic planar resonators

  • Lumped element circulators

  • Negative permeability tracking and semi-tracking circulators

  • Four-port single-junction circulators

  • Fabrication of very weakly and weakly magnetized microstrip circulators

The final chapter explores important and continuing discrepancies between theoretical models and actual practice. For designers building circulators, isolators, and phase shifters; researchers working on the limitation of ferrite devices; and graduate students intending to work in the field, Dr. Helszajn's insights and perspectives are invaluable.

商品描述(中文翻譯)

來自全球首屈一指的權威的條狀線圈理論與應用

條狀線接頭圓形器是一種獨特的三端口非互易微波接頭,用於將單一天線連接到發射器和接收器。其運作依賴於適當磁化的絕緣體中電子自旋與交變無線頻率磁場之間的相互作用。在其最簡單的形式中,它由一個微波平面旋磁共振器和三條傳輸線對稱耦合而成。

本書探討了條狀線圓形器運作中涉及的磁性相互作用、微波共振器形狀的特性,以及在將微波共振器耦合到微波電路時出現的網路問題。條狀線圓形器是一種在無線、軍事、雷達和衛星通信等多個行業中廣泛應用的重要設備。本書的設計表格是一個獨特的特色,提供了寶貴的設計支持。

本書由國際非互易微波電路和設備的權威撰寫,內容組織成邏輯性強的章節,專注於條狀線圓形器的特定效應和電路方面。涵蓋的亮點包括:



  • 磁性絕緣體的空間形狀去磁因子




  • Y型旋磁平面共振器的駐波解




  • 集中元件圓形器




  • 負透磁率跟踪和半跟踪圓形器




  • 四端口單接頭圓形器




  • 製作非常微弱和微弱磁化的微帶圓形器



最後一章探討了理論模型與實際操作之間的重要且持續的差異。對於設計圓形器、隔離器和相位移器的設計師;研究鐵氧體設備限制的研究人員;以及打算在該領域工作的研究生來說,Dr. Helszajn 的見解和觀點是無價的。