On the Modified Resonance Theory of Waveguide Circulator with Various Ferrite Specimens |
| |
| Authors: | D G Zhang Edward K N Yung and J Z Li |
| |
| Institution: | (1) Department of Photon-Electronic Technology, Shenzhen University, Shenzhen, Guangdong, 518060, People's Republic of China;(2) Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong |
| |
| Abstract: | A modified resonance theory of waveguide circulator with ferrite specimen is presented. The kernal of this theory is a two-step analysis method of an H-plane Y-junction waveguide circulator. For the first step, the ferrite specimens of Y-junction waveguide circulators are treated as if it were dielectric resonators with no magnetic bias. This simplistic approach is used to design the ferrite specimens of the circulators. Simple formulas are developed for determining the center frequency of the circulators. For the second step, wave circulation is made possible when a pair of degenerate resonance modes experiences different changes when the ferrite specimens are being magnetized. A modified analysis of joint resonance theory and simple field theory is advanced to evaluate the performances of the circulators. Good agreements between the analytically obtained performance and experimental result of various MMW waveguide circulators are observed. |
| |
| Keywords: | waveguide circulator resonance theory ferrite application |
| 本文献已被 SpringerLink 等数据库收录！ |
|
