메뉴 건너뛰기
Library Notice
Institutional Access
If you certify, you can access the articles for free.
Check out your institutions.
ex)Hankuk University, Nuri Motors
Log in Register Help KOR
Subject
Humanities
Social science
Natural science
Engineering
Medical science
Agriculture and Fishery
Art and Kinesiology
Interdisciplinary Studies

Compact and Broadband 90° Coupler Using a Metamaterial
Recommendations
Search
Questions

메타 물질을 이용한 초소형, 광대역 90° 커플러

논문 기본 정보

Type
Academic journal
Author
Hongjoon Kim (경북대학교)
Journal
Korea Electromagnetic Engineering Society The Journal of Korean Institute of Electromagnetic Engineering and Science Vol.23 No.7 KCI Accredited Journals
Published
2012.7
Pages
844 - 847 (4page)

Usage

cover
📌
Topic
📖
Background
🔬
Method
🏆
Result
Compact and Broadband 90° Coupler Using a Metamaterial
Ask AI
Recommendations
Search
Questions

Abstract· Keywords

Report Errors
By using LHTL(Left-Handed Transmission Line) which is a form of a metamaterial and conventional RHTL (Right-Handed Transmission Line), we designed, fabricated and tested a broadband 90° coupler which is a basic circuit for I-Q vector signal generation. Synthetic LHTL and RHTL were implemented with capacitors and inductors only, that the size is minimized. Also, by implementing a Wilkinson power divider which is required for the suggested circuit using a synthetic RHTL, the size of whole circuit is only 11 ㎜×12 ㎜. For the frequency range 0.8~1.25 ㎓, the phase difference at the outputs maintained 90°±5° and thus, a broadband 90° coupler could be made in a compact form. for the same frequency range, the insertion loss is less than 1.6 ㏈ and return loss is more than 10.1 dB. To the best of our knowledge, this is the smallest and broadband 90° coupler for the frequency range and if the circuit is made with MMIC(Monolithic Microwave Integrated Circuit) technology, the size will be reduced much further.

Contents

요약
Abstract
Ⅰ. 서론
Ⅱ. 합성 RHTL과 LHTL을 이용한 광대역 90° 커플러
Ⅲ. 실험 결과
Ⅳ. 결론
참고문헌

References (7)

Add References

Recommendations

It is an article recommended by DBpia according to the article similarity. Check out the related articles!

Related Authors

Frequently Viewed Together

Recently viewed articles

Comments(0)

0

Write first comments.

UCI(KEPA) : I410-ECN-0101-2013-427-003548974