无线电工程
無線電工程
무선전공정
RADIO ENGINEERING OF CHINA
2014年
7期
76-78
,共3页
双波段%阻抗变换%传输线
雙波段%阻抗變換%傳輸線
쌍파단%조항변환%전수선
dual-band%impedance transformer%transmission line
阻抗匹配技术在微波工程中十分重要。提出了一种基于改进遗传算法的双频带阻抗匹配的设计方法，该阻抗变换器能在2个频率点对任意电阻性负载实现理想的阻抗匹配。通过对多节传输线匹配方程的严格解，得到了双频阻抗变换器的精确设计公式，对用该方法设计的阻抗变换器性能进行了仿真分析，结果显示了该方法的有效性，可用于实际的设计。
阻抗匹配技術在微波工程中十分重要。提齣瞭一種基于改進遺傳算法的雙頻帶阻抗匹配的設計方法，該阻抗變換器能在2箇頻率點對任意電阻性負載實現理想的阻抗匹配。通過對多節傳輸線匹配方程的嚴格解，得到瞭雙頻阻抗變換器的精確設計公式，對用該方法設計的阻抗變換器性能進行瞭倣真分析，結果顯示瞭該方法的有效性，可用于實際的設計。
조항필배기술재미파공정중십분중요。제출료일충기우개진유전산법적쌍빈대조항필배적설계방법，해조항변환기능재2개빈솔점대임의전조성부재실현이상적조항필배。통과대다절전수선필배방정적엄격해，득도료쌍빈조항변환기적정학설계공식，대용해방법설계적조항변환기성능진행료방진분석，결과현시료해방법적유효성，가용우실제적설계。
The impedance matching technique is very important in microwave engineering. This paper proposes a dual-band impedance matching design method based on a variant of canonical Genetic Algorithm. The impedance transformer can realize ideal im-pedance matching in two frequency points in any resistive load. Based on the exact solution of multi-section transmission line matching equation, the precise design formula of dual band impedance transformer is obtained. The simulation analysis on impedance transforma-tion performances designed by the method is implemented, and the results show that the proposed method is effective and can be used in practical design.
