한국항행학회논문지 (Journal of Advanced Navigation Technology)
- 제10권2호
- /
- Pages.167-172
- /
- 2006
- /
- 1226-9026(pISSN)
- /
- 2288-842X(eISSN)
항공교통관제용 UHF대역 전력 증폭기 설계 및 구현
Design and Realization UHF Power Amplifier for Air Traffic Control
-
Kang, Suk-Youb
(INtech co. Ltd.)
;
- Song, Byoung-Jin (Dept. of Electronics Eng., Inha University) ;
- Park, Wook-Ki (Dept. of Electronics Eng., Inha University) ;
- Go, Min-Ho (Dept. of Electronics Eng., Inha University) ;
-
Park, Hyo-Dal
(Dept. of Electronics Eng., Inha University)
- 투고 : 2006.02.27
- 발행 : 2006.06.30
초록
본 논문에서는 항공관제용 UHF대역 25W 전력 증폭기를 설계 및 제작하였다. 전력 증폭기는 구동단, 전력 증폭단 및 제어부로 구성되었으며, 광대역 동작을 위하여 부궤환 회로 및 동축선로 발룬이 사용되었다. 선형성 및 효율성이 우수한 VDMOS를 전력소자로 사용하였으며, AB급 바이어스에서 push-pull 증폭을 하도록 설계하였다. 설계된 전력 증폭기는 게이트단에 음성 신호가 인가되었을 때 안정적인 AM 변조 특성을 나타내었으며, 상용 항공관제용 무선 송신기의 출력 사양을 만족하도록 설계 및 구현되었다.
In this paper, the 25W power amplifier for UHF band radio transceiver has been designed and realized. The power amplifier was composed of drive, power amplifier and control stages. Feedback topology and coaxial line baluns were used for wide band operation. The VDMOS, which has reliable performance for linearity and efficiency, was used for power device and designed to operate as push-pull amplification at Class AB Bias. The power amplifier designed in such a way was found to show stable AM modulation performance when voice signal was detected at the gate stage, with being designed and realized to meet output specifications of commercial air traffic control transmitter.