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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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CPW-Fed Arbitrary Frequency-Switchable Antenna Using CRLH Transmission Line

  • Lim, Inseop (School of Electrical and Electronics Engineering, College of Engineering, Chung-Ang University) ;
  • Lim, Sungjoon (School of Electrical and Electronics Engineering, College of Engineering, Chung-Ang University)
  • Received : 2013.01.17
  • Accepted : 2013.09.16
  • Published : 2014.02.01
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Abstract

A novel frequency-switchable antenna that uses PIN diodes and a composite right- and left-handed transmission line (CRLH TL) is proposed. The CRLH TL provides multi-order resonance, including a zeroth-order resonance (ZOR), and its shunt stub determines the ZOR frequency. Thus, the resonant frequency is arbitrarily chosen by lumped chip inductors on the shunt stub. Two prototypes are designed using different chip inductors while maintaining the antenna geometries. Antenna #1 can switch the resonant frequency from 1.8 GHz to 2.3 GHz. Antenna #2 can switch its resonance from 0.9 GHz to 2.3 GHz.

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References

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