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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국전자파학회JEES Journal of Electromagnetic Engineering And Science Journal of Electromagnetic Engineering And Science Vol.16 No.1
- 발행연도
- 2016.1
- 수록면
- 13 - 18 (6page)
이용수
초록· 키워드
오류제보하기
This paper presents a design of an impedance transformer (IT) with high frequency selectivity characteristics. The frequency selectivity can be controlled by even- and odd-mode impedance of a shunt coupled transmission line (TL). For experimental validation, a 50- to 20- Ω IT was implemented at a center frequency (f0) of 2.6 GHz for the long-term evolution signal. The measured results were in good agreement with the simulations, showing a return loss higher than 19 dB over a passband bandwidth of 0.63 GHz (2.28–2.91 GHz) and good sharp frequency selectivity characteristic near to the passband. The series coupled TL provides a transmission zero at 5.75 GHz, whereas the shunt coupled TL provides three transmission zeros located at 2 GHz, 3.1 GHz, and 7.14 GHz.
목차
Abstract
I. INTRODUCTION
II. DESIGN EQUATION
III. SIMULATION AND MEASUREMENT RESULTS
IV. CONCLUSION
REFERENCES
참고문헌 (12)
참고문헌 신청
[학술지(정기간행물)] - 장경남 / 2014 / Compact Dual-Band Three-Way Metamaterial Power-Divider with a Hybrid CRLH Phase-Shift Line / Journal of Electromagnetic Engineering and Science 14 (1) : 15 ~ 24
[학술지(정기간행물)] - 이원균 / 2014 / Size and Harmonic Reduced Wilkinson Balun Using Parallel Coupled Line with Open Stub / Journal of Electromagnetic Engineering and Science 14 (4) : 387 ~ 392
[학술지(정기간행물)] - P. Kim / 2015 / Analysis and design of a branch-line balun with high-isolation wideband characteristics / Microwave and Optical Technology Letters 57 (5) : 1228 ~ 1234
[학술지(정기간행물)] - Son Xuat Ta / 2013 / Wideband Double Dipole Quasi-Yagi Antenna Using a Microstrip-to-Slotline Transition Feed / Journal of Electromagnetic Engineering and Science 13 (1) : 22 ~ 27
[학술지(정기간행물)] - H. R. Ahn / 2010 / Impedance-transforming symmetric and asymmetric DC blocks / IEEE Transactions on Microwave Theory and Techniques 58 (9) : 2463 ~ 2474
[학술지(정기간행물)] - 이원균 / 2014 / Size and Harmonic Reduced Wilkinson Balun Using Parallel Coupled Line with Open Stub / Journal of Electromagnetic Engineering and Science 14 (4) : 387 ~ 392
[학술지(정기간행물)] - P. Kim / 2015 / Analysis and design of a branch-line balun with high-isolation wideband characteristics / Microwave and Optical Technology Letters 57 (5) : 1228 ~ 1234
[학술지(정기간행물)] - Son Xuat Ta / 2013 / Wideband Double Dipole Quasi-Yagi Antenna Using a Microstrip-to-Slotline Transition Feed / Journal of Electromagnetic Engineering and Science 13 (1) : 22 ~ 27
[학술지(정기간행물)] - H. R. Ahn / 2010 / Impedance-transforming symmetric and asymmetric DC blocks / IEEE Transactions on Microwave Theory and Techniques 58 (9) : 2463 ~ 2474
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