본문 바로가기
HOME> 논문 > 논문 검색상세

논문 상세정보

IEEE transactions on antennas and propagation v.65 no.1, 2017년, pp.52 - 62   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Impact of Using Resistive Elements for Wideband Isolation Improvement

Venkatasubramanian, Sathya N. Li, Linsheng Lehtovuori, Anu Icheln, Clemens Haneda, Katsuyuki
  • 초록  

    Improving the isolation between antenna elements in compact arrays has been a major focus of recent research. In this paper, we present ideas to improve the wideband isolation between closely spaced antennas. We do this by connecting lumped lossy (resistive) elements between the antenna feeds. A simple analytical expression is provided to compute the impact of resistive elements on efficiency to analyze the power lost in the resistive element. Three configurations of decoupling circuits are designed and fabricated for two closely spaced monopoles operating at 2.4 GHz. The decoupling circuit contains transmission lines of different lengths at the antenna inputs such that the mutual admittance between the antenna elements is: 1) resistive; 2) resistive and inductive; or 3) resistive and capacitive. Lumped elements are then connected between the transmission lines followed by matching circuit. This paper shows that with configurations 2) and 3), we can improve the wideband isolation compared with 1), as well as compared with using only lossless elements. The wideband isolation was improved by 17.6 dB across a 200-MHz band at 2.4 GHz, with a final isolation level of 20 dB over that band. Better than 30 dB isolation was achieved across a narrower band of 55 MHz. The proposed technique provides wideband isolation improvement for multiple-input multiple-output as well as narrowband performance with large isolation suitable for in-band full-duplex applications. The impact on efficiency is investigated to verify that the advantages from the improved wideband isolation outweigh the possible reduction in overall efficiency.


 활용도 분석

  • 상세보기

    amChart 영역
  • 원문보기

    amChart 영역

원문보기

무료다운로드
  • 원문이 없습니다.

유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.

원문복사신청을 하시면, 일부 해외 인쇄학술지의 경우 외국학술지지원센터(FRIC)에서
무료 원문복사 서비스를 제공합니다.

NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.

이 논문과 함께 출판된 논문 + 더보기