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슬릿 구조와 다층 구조를 이용한 소형 원형 편파 마이크로스트립 안테나

A Compact Circular-Polarized Microstrip Antenna Using the Slit and Multi-Layer Structure

  • Cho, Sang-Hyeok (Department of Radio Communication Engineering, Korea University) ;
  • Pyo, Seong-Min (Department of Radio Communication Engineering, Korea University) ;
  • Kim, Jung-Min (Department of Research and Development, AMOTECH) ;
  • Lee, In-Young (Department of Research and Development, AMOTECH) ;
  • Kim, Young-Sik (Department of Radio Communication Engineering, Korea University)
  • 발행 : 2009.03.31

초록

본 논문에서는 슬릿 구조와 다층 구조를 이용하여 소형 평판 안테나를 제안하였다. 제안한 안테나는 다층 FR4 기판을 이용하여 설계 및 제작하였으며 넓은 임피던스 대역폭을 갖는 소형 안테나로써, 가볍고, 저렴한 장점을 가지고 있으며 GPS 대역 중심 주파수 1,575.42 MHz에서 원형 편파 특성을 갖는다. 또한, 기판의 최상층의 슬릿의 길이와 폭을 조절하여, 대역폭을 거의 유지한 상태로, 공진 주파수를 낮추어 보다 소형화 하였다. 안테나 크기는 $20{\times}20{\times}4.0\;mm^3$이고 측정된 안테나 이득은 0.5 dBi, 대역폭은 VSWR 2:1에서 4.4 %(1,542$\sim$1,612 MHz), 3 dB 축비(axial-ratio) 대역폭은 약 15 MHz(1 %)이다.

In this paper, a planar microstrip patch antenna is proposed using the slit on the top layer of a multi-layered structure for GPS application. The proposed antenna has a circular polarization at 1,575.42 MHz. This proposed antenna is fabricated on multi-layered FR4 substrate. The slits embedded on the top plane may yield to lower a resonance frequency and sustain a broad bandwidth. The proposed antenna size is $20{\times}20{\times}4.0\;mm^3$. The measured gain of 0.5 dBi, 10 dB bandwidth(VSWR 2:1) of 70 MHz(4.4 %), and 3 dB axial-ratio bandwidth of 15 MHz(1 %) have been obtained, respectively.

키워드

참고문헌

  1. Wen-Shyang Chen, Chun-Kun Wu, and Kin-Lu Wong, "Compact circularly polarized microstrip antenna with bent slots", Electron. Lett., vol. 34, no. 13, pp. 1170-1171, Jun. 1998 https://doi.org/10.1049/el:19980909
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  3. Shun-Shi Zhong, Jun-Hai Cui, Rui-Feng Xue, and Jun-Wei Niu, "Compact circularly polarized microstrip antenna on organic magnetic substrate", Microwave and Optical Technology Letters, vol. 40, no. 6, pp. 497-500, Mar. 2004 https://doi.org/10.1002/mop.20014
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  5. Shaoqiu Xiao, Bing-Zhong Wang, Wei Shao, and Yan Zhang, "Bandwidth-enhancing ultralow-profile compact patch antenna", IEEE Trans. Antennas and Propag., vol. 53, no. 11, pp. 3443-3447, Nov. 2005 https://doi.org/10.1109/TAP.2005.858838
  6. B. Lee, C. Jung, B. Yu, K. Kong, N. Choi, F. J. Harackiewicz, I. Lee, S. Cho, M.-J. Park, and Y.-S. Chung, "Design concept of compact antenna for SDARS applications", Electron. Lett., vol. 43, no. 16, pp. 845-846, Aug. 2007 https://doi.org/10.1049/el:20071594

피인용 문헌

  1. Circularly Polarized Spidron Fractal Antenna with a Conducting Reflector vol.21, pp.10, 2010, https://doi.org/10.5515/KJKIEES.2010.21.10.1177
  2. Compact GPS Patch Antenna Using Variable Capacitor vol.39C, pp.3, 2014, https://doi.org/10.7840/kics.2014.39C.3.282