소방무선대역을 포함한 인빌딩용 이동통신 중계기 안테나 설계
|dc.description.abstract||Communications infrastructure being built for a variety of mobile comm- unication services such as MIMO, Wi-Fi, 4G, etc. However, inside buildings or offshore plant structure have problems of propagation blind region. In addition, propagation environment of fire safety of fire-fighting also have same problem. Especially high-rise buildings should be supported within the fire-fighting radio services in recent years. So, In this thesis, proposed in-building repeating antenna included fire-fighting wireless frequency band design. In Chapter 1, research background and necessity were presented. Why designed integrated In-building repeater antennas included fire-fighting band. Antenna used for the repeater. In Chapter 2, multi-band antenna by multipole were presented. Antenna were designed biconial upon dipole to reduce size. To realize multiband resonant characteristic, same size dipoles are considered. Designed antenna have resonance fire-fighting band, repeater band and Wi-Fi band. Mea surement results of proposed antenna has a good agreement. In Chapter 3, monopole antenna have directional radiation pattern were presented. The important parameters such as distance between parasitic element and a center monopole, and each height of a center monopole and 4 parasitic elements are simulated to obtain good antenna characteristics at multiband resonance. Measurement results of reflection coefficients, bandwidth, 2-D radiation pattern and gain are agreed well with their Simulation results. In Chapter 4, cross-discone antenna were presented. discone antenna were tried to obtain a broadband frequency. The conclusion of this thesis was summarized in chapter 5.||-|
|dc.description.tableofcontents||1. 서 론 1.1 연구배경 및 필요성 1 1.1.1 인빌딩 통합형 중계기의 필요성 1 1.1.2 소방무선대역의 필요성 3 1.1.3 여러 가지 중계기 안테나 예시 4 2. 다중대역 다이폴 안테나 설계 2.1 안테나 설계 11 2.2 안테나 제작 및 설계 21 2.3 결과분석 24 3. 기생소자를 가지는 모노폴 안테나 설계 3.1 안테나 설계 25 3.2 안테나 제작 및 설계 38 3.3 결과분석 44 4. 십자형 디스콘 안테나 설계 4.1 안테나 설계 45 4.2 안테나 제작 및 설계 52 4.3 결과분석 59 5. 결론 60 참고문헌 61 Publications 63||-|
|dc.title||소방무선대역을 포함한 인빌딩용 이동통신 중계기 안테나 설계||-|
|dc.title.alternative||Design for In-buiding Repeating Antenna Included Fire-Fighting Wireless Frequency Band||-|
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