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PHEMT를 이용한 광대역 12 GHz 능동 주파수 체배기 설계
전종환,구경헌,강성민,최재홍 한국전자파학회 2004 한국전자파학회논문지 Vol.15 No.6
본 논문은 6 GHz의 주파수를 2체배 하여 12 GHz의 신호원을 얻는 광대역 능동 주파수 2체배기를 PHEMT를 사용하여 제작하였다. 설계된 주파수 체배기는 핀치오프 영역의 바이어스점을 가지며, 동작주파수 영역에서 무조건 안정인 특성을 갖도록 하기 위하여 입력매칭단과 바이어스 라인 사이에 직렬 RC 회로를 제안하였다. 측정결과 0 dBm의 입력전력에 대하여 12 GHz, 1.7 dBm의 2차 고조파 출력을 얻었고, 6 GHz에서 27.5 dBc의 기본주파수 억압과 18 dBc의 3차 고조파 억압특성을 보였으며, 1.8 GHz의 3 dB 대역폭을 나타내었다.
전종환,박인천 국민체육진흥공단 한국스포츠정책과학원 2022 International Journal of Applied Sports Sciences Vol.34 No.2
This qualitative study examined Korean college soccer players’ perceptions of and need for agents and the roles and competencies expected of them based on in-depth interviews with college soccer players. By exploring the significance of soccer agents as perceived by college soccer players, this study aimed to provide basic data necessary for training soccer agents for college soccer players and establishing regulations for college soccer agents. The research results can be summarized as follows: (1) The players interviewed generally showed a positive attitude toward soccer agents and were aware of the need for an agent; (2) the roles expected of an agent by college soccer players were different from those expected by professional soccer players: preparing opportunities to join Korean and foreign professional clubs, supporting and managing players, and facilitating smooth communication; and (3) the core competencies expected of a soccer agent by college soccer players were official agent certification, networks with professional soccer clubs, and understanding of the soccer industry. The results of this study highlight the need for stakeholder organizations in soccer to establish a systematic agent platform for college soccer players and take efforts to eliminate unregistered agents who engage in inappropriate activities. Qualified agent education and training for college soccer players will help protect them from unregistered agents and foster high-quality agency services.
배구 한류를 위한 정책적 제언 -태국에서의 한국 여자 배구 사례를 중심으로
전종환,박성배 한국체육정책학회 2021 한국체육정책학회지 Vol.19 No.2
The Korean Wave which refers to the phenomenon of Korean popular culture gaining immense popularity in abroad, is creating a new cultural consumption patter in abroad. Sport is acknowledged as a major factor in national competitiveness creating a new economic value, and it is showing potential to become a main agent to support the Korean wave syndrome, which has started from the pop culture. It was interesting to see that the popularity of Korean professional women’s volleyball and its players went up in Thailand for the past years. Therefore, the purpose of this study is to analyze the popularity factors of Korean women’s volleyball in Thailand and explore weather Korean women’s volleyball can be seen as a true Korean Wave of sport phenomenon. In order to achieve the proposed research goals and objectives, Thai people (volleyball fans, instructors of Thai volleyball league and teams, members of the media) were approached and asked in-depth face-to-face interview. The results revealed that the attractiveness of Korean women’s volleyball players and fun factor of Korean women’s professional volleyball league are the preferred factors for Korean women’s volleyball in Thailand. In summary, the findings in this study contributes to the Korean Wave of sport literature by explaining what popularity factors exist. These findings will provide strategic perception to increase Korean Wave of sport phenomenon. The current study also provides marketers at professional sports with useful implications to make informed global marketing strategies for economic creation.
미국 프로스포츠 산업 친환경 활동 분석을 통한 국내 프로스포츠 친환경 활동 방안 제언
전종환,이완영,박성배 한국체육정책학회 2019 한국체육정책학회지 Vol.17 No.2
Although the domestic pro-sports industry had the importance and need of the eco-friendly practices, in comparison with the eco-friendly activity in the overseas pro-sports industry, such importance and the need lacks much. Therefore, this study aims to analyze in depth each roles and efforts that the eco-friendly institutions, pro-sports leagues, pro-sports teams in America. Also, this study intends propose the schemes and political proposals for the settlement of the systematic and successful eco-friendly activities in Korean pro-sports industry. According to the result of this study, it can be known that the role of Green Sports Alliance was very big in the start of the eco-friendly activities in the American pro-sports industry. Green Sports Alliance provides leagues and teams the guideline and road-map for the eco-friendly activities. Moreover, the teams see the eco-friendly activities with a long-term viewpoint. Accordingly, in Korea also, establishment of the general institution and provision of a guideline for it eco-friendly operation. The domestic pro-sports leagues and teams need to utilize the environment education support with long-term plan and viewpoints.