Browse > Article

HEMT Mixer for Phase Conjugator Applications in the LS Band  

전중창 (진주산업대학교 전자공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.8, no.2, 2004 , pp. 239-244 More about this Journal
Abstract
In this paper, we have developed a frequency mixer which can be used as a microwave phase conjugator in the LS band retrodirective antenna system. The mixer as a phase conjugator must have an If signal of which frequency is nearly as high as that of an RF signal, so this fact brings difficulty in the combination of input signals and the design of impedance matching circuit. The circuit configuration is chosen to be of the gate mixer using a pseudomorphic HEMT device. The operating frequencies are 4.00 ㎓, 2.01 ㎓, and 1.99 ㎓ for LO, RF, and IF, respectively. Conversion gain is measured to be 12.5 ㏈ and 1 ㏈ compression point -34 ㏈m at the LO power of -7 ㏈m. The mixer fabricated in this research is the single-ended type, where RF leakage signal appears inevitably at the If port because RF and If frequencies are almost the same. The circuit topology suggested here can be applied directly to the design of balanced-type mixers and phase conjugators.
Keywords
HEMT;
Citations & Related Records
연도 인용수 순위
  • Reference
1 K. Kawakami, et. al, 'A high-gain 50-GHz band monolithic balanced gate mixer with an external IF balun,' IEEE Microwave theory Tech.,, vol. MTT-46, pp. 829-832, June 1998   DOI   ScienceOn
2 J. Golio, Microwave MESFETs and HEMTs, Aretch House, pp. 288-291, 1991
3 R. Miyamoto, Y. Quian, T. Itoh, 'An active integrated retrodirective transponder for remote information retrieval-on-demand,' IEEE Micro wave Theory Tech.,, vol. MTT-49, pp. 1658- 1662, Sept. 2001   DOI   ScienceOn
4 R. Miyamoto, T. Itoh, 'Retrodirective arrays for wireless communications' IEEE Microwave Magazine, pp. 71-79, Mar. 2002
5 C. Pon, 'Retrodirective array using the heterodyne technique,' IEEE Trans. Antennas Propagat., pp. 176-180, Mar. 1964
6 배중선 외, 'C-Band용 FG-CPW 단일평형 다이오드 혼합기,' 한국전자파학회논문지, 제12권, 제3호, pp. 339-345, 2001년 4월
7 R. Pucel, D. Masse, R. Bera, 'Performance of GaAs MESFET mixers at X-band,' IEEE Microwave Theory Tech.,, vol. MTT-24, pp. 351-360, June 1976   DOI
8 T. Brabetz, V. Fusco, S. Karode, 'Balanced subharmonic mixers for retrodirective-array applications,' IEEE Microwave Theory Tech.,, vol. MTT-49, pp. 465-469, March 2001   DOI   ScienceOn
9 L. DoDomenico, G. Rebeiz, 'Digital Communi- cations using self-phased arrays,' IEEE Microwave Theory Tech.,, vol. MTT-49, pp. 677-684, April 2001   DOI   ScienceOn