• Title/Summary/Keyword: Calculable Dipole Antenna

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The Design of Calculable Standard Dipole Antennas in the Frequency Range of 1~3 GHz

  • Kim, Ki-Chai;Kim, Sang-Myeong;Kwon, Jae-Yong;Kang, Tae-Weon;Kim, Jeong-Hwan
    • Journal of electromagnetic engineering and science
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    • v.12 no.1
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    • pp.63-69
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    • 2012
  • This paper presents the design of a calculable standard dipole antenna with a hybrid balun in the frequency range of 1 GHz to 3 GHz. A new formula of the antenna factor for a dipole antenna with a hybrid balun is derived using the power mismatch-loss concept. The antenna factors derived in this paper are in good agreement with the results calculated from S-parameters. The design results show that the calculable dipole antenna with a hybrid balun can be characterized by power mismatch-loss component factors.

Characteristics of Antenna Factor for a Calculable Dipole Antenna above Ground Plane in 1~3 GHz Frequency Band (1~3 GHz 대역용 계산가능 다이폴안테나의 접지판 위 안테나 인자 특성)

  • Lim, Sung-Min;Kim, Sang-Myung;Jung, Sung-Woo;Kim, Ki-Chai
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.19 no.9
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    • pp.1991-1998
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    • 2015
  • This paper presents the antenna factor characteristics of a calculable dipole antenna with a hybrid balun, installed above ground plane vertically and horizontally, using Method of Moments (MoM). An expression for the antenna factor is formulated using the concept of power mismatch loss. The input impedance and effective length of the antenna, which are in the formula of the antenna factor, are calculated using the MoM. The results show that the antenna factors above a ground plane are agreed with the free space antenna factors within ± 0.14 dB. The horizontal antenna factors are varied more by 0.2 dB than the vertical antenna factors.

A Comparison of Antenna Factor Characteristics for a Calculable Dipole Antenna by MoM and EMF Method (모멘트법과 기전력법을 적용한 계산가능 다이폴안테나의 안테나 인자 특성 비교)

  • Kim, Ki-Chai;Kim, Sang-Myeong;Kim, Ki-Chul;Kwon, Jae-Yong;Kang, Tae-Weon;Kim, Jeong-Hwan
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.23 no.3
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    • pp.275-282
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    • 2012
  • This paper presents a comparison of antenna factor characteristics computed by the Method of Moments(MoM) and the electromotive force(EMF) method for a calculable dipole antenna with a hybrid balun. An expression for the antenna factor is formulated using the concept of power mismatch loss. The input impedance and effective length of the antenna, which are in the formula of the antenna factor, are calculated using the two methods. The results show that the antenna factors are agreed within 0.24 dB, although the maximum difference between the input impedances obtained from the two methods is about 17 ${\Omega}$.