The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
권호 표지
DOI QR코드

DOI QR Code

High power X-band SSPA Design using Gysel Power Combiner

Gysel 전력결합기를 이용한 고출력 X-band SSPA 설계

  • 이상록 ((주)한국통신부품 부설연구소) ;
  • 임은재 (경남대학교 정보통신공학과) ;
  • 이영철 (경남대학교 정보통신공학과)
  • Received : 2014.01.15
  • Accepted : 2014.04.11
  • Published : 2014.04.30
Download PDF
⟨ Previous Next ⟩

Abstract

Necessity of compact X-band solid-state weather radar is required to provide weather data, which generate locally in a lot of Korea's mountainous area, rather than tube-type radar. Solid State Power Amplifier (SSPA) for using Dual-polarization method in weather radar is able to obtain desired high output by combining many low output power devices in parallel. Thus, Power combiner applying to high-output power amplifier has disadvantages such as path loss, ballast resistance problem by high frequency and high power, heat release. Therefore, In this paper we demonstrated the excellence of isolation, which is the result from modified Gysel power combiner. As a result, we designed X-band 250W solid state power amplifier with peak power 54dBm, 25% power efficiency for weather radar.

산악지형이 많은 한국 실정에서 국지적으로 발생하는 기상자료를 제공하기 위하여 진공관식 레이더 보다는 반도체를 이용한 소형의 X-band 기상레이더의 필요성이 요구되고 있다. 기상레이더의 이중 편파방식에 사용되는 반도체형 전력증폭기(SSPA)는 다수의 소출력 전력소자를 병렬로 결합함으로써 원하는 고출력을 얻을 수 있다. 이와 같이 고출력 전력증폭기에 적용되는 전력결합기는 경로손실, 고주파수, 고출력에 따른 안정저항의 문제, 열방출 특성을 해결하기 위하여 본 논문에서는 변형된 Gysel 전력결합기를 적용한 결과 격리도(isolation)의 우수성을 제시하였으며, 최대출력 54dBm, 25%의 효율을 갖는 기상레이더용 X-band 250W 급 반도체형 전력증폭기를 설계하였다.

Keywords

References

  1. K. Sim, "X-band Dual polarization weather radar basic design and performance," Mag. of the IEEK, vol. 40, no. 2, 2013, pp. 29-56.
  2. D. Thompson, R. Kelley, M. Yeary, and J. Meier, "Direct Digital Synthesizer architecture in multichannel, dual-polarization weather radar transceiver modules," 2011 IEEE Radar Conf., May 2011, pp. 859-864.
  3. A. Ryzhkov, T. Schuur, V. Melnikov, P. Zhang, and M. Kumjian, "Weather applications of dual-polarization radars," 2011 IEEE Radar Conf., May 2011, pp. 1021-1025.
  4. D. Ryu, J. Kim, D. Kim, S. Kim, and J. Yang, "The Meteorological Agency dual polarization radar adoption and using plan," Mag. of Korean Meteorological Society, vol. 2013, no. 4, 2013, pp. 64-65.
  5. M. Kim, Y. Jang, and Y. Rhee, "An implementation of 60W X-band Cascade SSPA for Marine Radar System," J. of The Korea Institute of Electronic Communication Sciences, vol. 7, no. 1, 2012, pp. 1-7.
  6. N. Feng, F. Jianhong, F. Hao, W. Chaoyang, and L. Jianwei, "Design of an X-band High Power Solid State Power Amplifier Based on GaN HEMT," 2010 Int. Conf. on Microwave and Millimeter Wave Technology (ICMMT), May 2010, pp. 1916-1918.
  7. K. Datta, J. Roderick, and H. Hashemi, "A 22.4dBm Two-Way Wilkinson Power Combined Q-Band SiGe Class-E Power Amplifier with 23% Peak PAE," 2012 IEEE Compound Semiconductor Integrated Circuit Symp. (CSICS), Oct. 2012.
  8. A. Abbosh and B. Henin, "Planar wideband inphase power divider/combiner using modified Gysel structure," IET Microwaves, Antennas & Propagation, vol. 7, July 2013, pp. 783-787. https://doi.org/10.1049/iet-map.2013.0037
  9. L. Chongzhe and D. Ricketts, "A low-loss, impedance matched  compact T-junction power combiner," 2012 7th European EuMIC, Oct. 2012, pp. 147-150.
  10. O. Ahmed and A. Sebak, "A modified Wilkinson Power divider/combiner for ultrawideband communications," 2009 IEEE APSURSI., June. 2009.
  11. A. Wentzel, V. Subramanian, A. Sayed, and G. Boeck, "Novel Broadband Wilkinson Power Combiner," 2006 36th European Microwave Conf., Sept. 2006, pp. 212-215.
  12. H. Oraizi and A. Sharifi, "Design and optimization of a two-way Gysel power divider with arbitrary power division and impedance matching," 2009 Mediterrannean Microwave Symp., Nov. 2009.