The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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A Study on Performance Improvement to Use Dummy Elements on A Monopole Array-assisted Doppler Spread Compensator for A Digital Terrestrial Television Broadcasting Receiver

  • 유영철 (LG전자 Mobile Communications 연구소)
  • Received : 2012.10.17
  • Accepted : 2012.05.16
  • Published : 2012.06.30
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Abstract

This paper proposes an array antenna assisted Doppler spread compensator with dummy elements which are placed on either end of a monopole array for a digital terrestrial television broadcasting (DTTB) receiver. An array antenna assisted Doppler spread compensator, proposed previously, has a major drawback in performance degradation owing to mutual coupling effect among array elements. In order to solve the mutual coupling problem, dummy elements, placed on both sides of the monopole array mitigate performance degradation of a Doppler spread compensator arising from the mutual coupling among monopole array elements. Computer simulation results show that the dummy elements can reduce this performance degradation as well as expand the operating bandwidth of a Doppler spread compensator.

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References

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