The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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The injection-locking coupled oscillators for the active integrated phased array antenna

능동 위상배열 안테나를 위한 Injection-locking coupled oscillators

  • 김교헌 (광운대학교 전파공학과/(신기술연구소)) ;
  • 이두한 (광운대학교 전파공학과/(신기술연구소)) ;
  • 류연국 (충주산업대학교 전자공학과) ;
  • 이승무 (충남전문대학 전자과) ;
  • 오일덕 (대전산업대학교 전자공학과) ;
  • 홍의석 (광운대학교 전파공학과/(신기술연구소))
  • Published : 1996.09.01
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Abstract

This paper deals with the design and development of an Injection-Locking Coupled Oscillators(ILCO), which functions like phase-shifter in the Active Intergrated Phased Array Antenna(AIPAA). This linear array 2-element ILCO consists of two Injection Locking Hair-pin Resonator Oscillators(ILHRO) and an unilateral amplifier. The first and second elements of the ILCO have same frequency tuning range but locking bandwidths of 11.5MHz and 14MHz respectively. A phase shift of .DELTA..PHI.=158.4.deg.(-78.0.deg. to 80.4.deg.) could be obtained inthe second element of ILCO when the first elementof the ILCO was in the reference locking mode(.DELTA..PHI.=0.deg.). When the ILCO is applied to the AIPAA, the predicted beam scanning angle value will be 38.4.deg.. Each ILCO gives good frequency stability and lower AM, FM, and PM noise charactheristics in the mutual coupling lockingmode. The ILCO can not only play a part as the phase shifter for the AIPAA but it can also be usedas the power combining device in the mm-wave frequency range and as a part of a T/R MMIC module.

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