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Directivity of Radiation from a Localized Source Coupled to Electromagnetic Crystals

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Abstract

Directivity of radiation from a localized source coupled to electromagnetic crystals is investigated theoretically using a two-dimensional model. The closed form expression for the far field of radiation is derived and used to examine two primary factors governing the directivity. It is shown that the directivity is uniquely characterized by the transmission windows of the electromagnetic crystals in the frequency and angular spectral domains and the Fabry-Perot resonance condition for the radiated field in the space surrounding the source.

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Acknowledgment

This work was supported by the 2008 Special Coordination Funds for Promoting Science and Technology granted by the Ministry of Education, Culture, Sports, Science and Technology, Japan

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Authors and Affiliations

  1. Department of Electrical and Computer Engineering, Kumamoto University, Kurokami, 860-8555, Japan

    Vakhtang Jandieri

  2. Department of Computer Science and Communication Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan

    Kiyotoshi Yasumoto

  3. Department of Electronics and Telecommunication Engineering, Jadavpur University, Kolkata, 700 032, India

    Bhaskar Gupta

Authors
  1. Vakhtang Jandieri
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  2. Kiyotoshi Yasumoto
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  3. Bhaskar Gupta
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Correspondence to Kiyotoshi Yasumoto.

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Jandieri, V., Yasumoto, K. & Gupta, B. Directivity of Radiation from a Localized Source Coupled to Electromagnetic Crystals. J Infrared Milli Terahz Waves 30, 1102–1112 (2009). https://doi.org/10.1007/s10762-009-9524-4

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  • DOI: https://doi.org/10.1007/s10762-009-9524-4

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