메타물질 전송선로를 이용한 이중대역 평형증폭기A Dual-band Balanced Amplifier Using Meta-material Transmission Line
- Other Titles
- A Dual-band Balanced Amplifier Using Meta-material Transmission Line
- Authors
- 임종식; 이재훈; 이준; 전역환; 정용채; 한상민; 안달
- Issue Date
- 2011
- Publisher
- 대한전기학회
- Keywords
- Dual band amplifier; Meta-material; Left handed transmission line
- Citation
- 전기학회논문지, v.60, no.12, pp.2305 - 2310
- Journal Title
- 전기학회논문지
- Volume
- 60
- Number
- 12
- Start Page
- 2305
- End Page
- 2310
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/16954
- ISSN
- 1975-8359
- Abstract
- This paper describes a design of dual band balanced amplifier using a lefted handed meta-material transmission line structure for high frequency application. Meta-material transmission lines have been known to have dual band frequency responses. A dual band branch line hybrid coupler is designed using the meta-material transmission lines, and measured at first. Two identical dual band amplifiers are also designed, built and tested using the same meta-material transmission structure. The proposed dual band balanced amplifier is composed of those dual band branch line hybrid coupler and amplifiers. In order to suggest an design example, a prototype of dual band balanced amplifier is built and measured at the dual frequencies, 1800MHz(f_1) and 2300MHz(f_2). The simulation and measurement show that the fabricated balanced amplifier operates well at the desired dual frequencies bands with the gain of 11.12dB and 17.67dB at f_1and f_2, respectively, with a good agreement with the simulation results.
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Collections - College of Engineering > Department of Information and Communication Engineering > 1. Journal Articles
- College of Engineering > Department of Electrical Engineering > 1. Journal Articles
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