전기전자학회논문지 (Journal of IKEEE)

  • 제22권4호
  • /
  • Pages.1050-1055
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  • 2018
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  • 1226-7244(pISSN)
  • /
  • 2288-243X(eISSN)
한국전기전자학회 (Institute of Korean Electrical and Electronics Engineers)
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Matching Element Sensitivity Analysis for the Operation of a Dual-band Power Amplifier with CRLH Transmission Lines

  • Lee, Byeonguk (Dept. of Electronics Engineering, Hankuk University of Foreign Studies) ;
  • Kim, Changwook (Dept. of Electronics Engineering, Hankuk University of Foreign Studies) ;
  • Park, Youngcheol (Dept. of Electronics Engineering, Hankuk University of Foreign Studies)
  • 투고 : 2018.12.07
  • 심사 : 2018.12.24
  • 발행 : 2018.12.31
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초록

In this paper, we analyzed the sensitivity of matching elements for the dual-band operation of a power amplifier with composite right/left-handed (CRLH) transmission lines. Metamaterial theory enables CRLH transmission to support arbitrary impedance matching at dual frequencies. In general, at sub-GHz range, the CRLH matching networks are commonly implemented with lumped elements, which are prone to manufacturing distribution. In order to reduce the effect from the distribution of element values in design, we suggest a method to analyze the sensitivity of matching elements from the performance aspect of power amplifiers. Based on the analysis, a 40dBm dual-band power amplifier operating at 0.7GHz and 1.5GHz is designed.

키워드

JGGJB@_2018_v22n4_1050_f0001.png 이미지

Fig. 1. Equivalent circuit of RH_TL and LH_TL.

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Fig. 3. Matching with the series-shunt stub tuning method.

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Fig. 4. Unit cell of CRLH.

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Fig. 5. Schematic of the designed power amplifier based on CRLH.

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Fig. 7. PAE for variance of the series CR.

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Fig. 8. PAE and Pout contour for variance of the series CR and LR1 at the 0.7GHz

JGGJB@_2018_v22n4_1050_f0009.png 이미지

Fig. 9. PAE and Pout contour for variance of the series CR and LR1 at the 1.5GHz.

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Fig. 10. PAE and Pout over the input power.

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Fig. 11. Small signal result of the designed PA.

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Fig. 2. Equivalent circuit of CRLH TL and its frequency response.

JGGJB@_2018_v22n4_1050_f0013.png 이미지

Fig. 6. Pout for variance of the series CR.

Table. 1. Sensitivity of elements in OMN composed of CRLH over the distribution of ±20% around the desired values.

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Table. 2. Specification of the designed circuit.

JGGJB@_2018_v22n4_1050_t0002.png 이미지

참고문헌

  1. S. Li, B. H. Tang, Y. A. Liu, S. L. Li, C. P. Yu, and Y. L. Wu, "Miniaturized Dual-Band Matching Technique based on Coupled_Line Transformer for Dual-Band Power Amplifer Design," Progress In Electromagnetics Research, vol.131, pp.195-210, 2012. DOI:10.2528/PIER12072004
  2. Y. Park, H. Yoon, "Fast Characterization of Frequency Response in High-Speed Signal Generators with Frequency-Interleaving Technique," Accepted for the publication in MEASUREMENT, 2017. DOI:10.1016/j.measurement.2017.03.039
  3. Tatsuo Itoh, Christophe Caloz, Electromagnetic Metamaterials, John Wiley & Sons Inc., 2005.
  4. Y. C. Park and H. Y. Yoon, "Analysis on the Propagated Uncertainty of Output Power of Class-F Power Amplifiers from DC Biasing and Its Optimization," JEES, vol.25, no.2, pp.183-188, 2014.
  5. I. Hsiang. Lin, Marc. DeVincentis, Christophe, Caloz, Tatsuo. Itoh, "Arbitrary Dual-Band Components Using Composite," IEEE Trans. on Microwave Theory and Techniques, vol.52, no.4, 2004. DOI:10.1109/TMTT.2004.825747
  6. Y. C. Park and H. C. Ku, "Design and Analysis of dual-band matching networks using composite right/left handedness for arbitrary impedances," IEICE Electronics Express, vol.7, no.9, pp.601-607, 2010. DOI:10.1587/elex.7.601
  7. G. R. Kim, "Ultra Wideband Band pass Filter Design using the CRLH Transmission Line," JKIICE, vol.17, no.10, pp.2233-2238, 2013. DOI:http://dx.doi.org/10.5573/ieek.2013.50.11.036
  8. S. H. Kim, K. H. Sohn, E. K. Kim, Y. Kim, Y. S. Lee, Y. C. Yoon, "Dual-Band Power Divider Using CRLH-TL," JKIEES, vol.19, no.8, 837-843, 2008. DOI:10.5515/KJKIEES.2008.19.8.837