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논문 기본 정보

자료유형
학술저널
저자정보
Jawad Yousaf (Sungkyunkwan University) Hojin Jung (Samsung Electronics) Kwangho Kim (Sungkyunkwan University) Wansoo Nah (Sungkyunkwan University)
저널정보
한국전자파학회JEES Journal of Electromagnetic Engineering And Science Journal of Electromagnetic Engineering And Science Vol.16 No.3
발행연도
2016.7
수록면
169 - 181 (13page)

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This work presents a new method for enhancing the performance of a dual band Planer Inverted-F Antenna (PIFA) and its lumped equivalent circuit formulation. The performance of a PIFA in terms of return loss, bandwidth, gain, and efficiency is improved with the addition of the proposed open stub in the radiating element of the PIFA without disturbing the operating resonance frequencies of the antenna. In specific cases, various simulated and fabricated PIFA models illustrate that the return loss, bandwidth, gain, and efficiency values of antennas with longer optimum open stub lengths can be enhanced up to 4.6 dB, 17%, 1.8 dBi, and 12.4% respectively, when compared with models that do not have open stubs. The proposed open stub is small and does not interfere with the surrounding active modules; therefore, this method is extremely attractive from a practical implementation point of view. The second presented work is a simple procedure for the development of a lumped equivalent circuit model of a dual band PIFA using the rational approximation of its frequency domain response. In this method, the PIFA’s measured frequency response is approximated to a rational function using a vector fitting technique and then electrical circuit parameters are extracted from it. The measured results show good agreement with the electrical circuit results. A correlation study between circuit elements and physical open stub lengths in various antenna models is also discussed in detail; this information could be useful for the enhancement of the performance of a PIFA as well as for its systematic design. The computed radiated power obtained using the electrical model is in agreement with the radiated power results obtained through the full wave electromagnetic simulations of the antenna models. The presented approach offers the advantage of saving computation time for full wave EM simulations. In addition, the electrical circuit depicting almost perfect characteristics for return loss and radiated power can be shared with antenna users without sharing the actual antenna structure in cases involving confidentiality limitations.
#Equivalent Circuit(EC) #Equivalent/Electrical Circuit Model(ECM) #Planer Inverted-F Antenna(PIFA) #Rational Approximation(RA) #Vector Fitting(VF)

목차

Abstract
Ⅰ. INTRODUCTION
Ⅱ. DESIGN AND ANALYSIS OF DUAL BAND PIFA FOR PERFORMANCE ENHANCEMENT
Ⅲ. LUMPED EQUIVALENT CIRCUIT MODELING OF A DUAL BAND PIFA
Ⅳ. CORRELATION BETWEEN THE EQUIVALENT CIRCUIT PARAMETERS AND THE PHYSICAL OPEN STUB LENGTH OF DUAL BAND PIFAS
Ⅴ. ADVANTAGES OF THE PROPOSED METHODOLOGY
Ⅵ. CONCLUSION
REFERENCES

참고문헌 (33)

참고문헌 신청
[학술지(정기간행물)] - J. Anguera / 2013 / Advances in antenna technology for wireless handheld devices / International Journal of Antennas and Propagation 2013 : 1 ~ 25 google schola [단행본] - K. L. Wong / 2003 / Planar Antennas for Wireless Communications / John Wiley & Sons google schola [학술지(정기간행물)] - R. Hossa / 2004 / Improvement of compact terminal antenna performance by incorporating open-end slots in ground plane / IEEE Microwave and Wireless Components Letters 14 (6) : 283 ~ 285 google schola [학술지(정기간행물)] - F. Yang / 2001 / Wide-band E-shaped patch antennas for wireless communications / IEEE Transactions on Antennas and Propagation 49 (7) : 1094 ~ 1100 google schola [학술지(정기간행물)] - J. S. Kuo / 2001 / Dual-frequency operation of a planar inverted-L antenna with tapered patch width / Microwave and Optical Technology Letters 28 (2) : 126 ~ 127 google schola

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