Design and Fabrication of Aperture-Coupled Microstrip Patch Antenna for WLL Repeater Using Space Diversity 


Vol. 27,  No. 4, pp. 388-396, Apr.  2002


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  Abstract

In this paper, An aperture-coupled microstrip patch antenna operating at WLL frequency range(Rx : 2.3~ 2.33Ghz, Tx : 2.37~2.4Ghz) for WLL repeater is designed and fabricated. FR-4 epoxy substrate with 4.7 relative permittivity is inserted between feed-line and patch plane. Aperture-coupled structure is employed for consideration of bandwidth improvement and gain's characteristics. Air gap is arranged at each layer for bandwidth extension and radome is used as a protector in the upper patch. In this paper, both 1 port and 2 port are designed as 1×2 array antenna which uses T-junction and ?_g/4 transformer. Here, 1 port is used as transmitting/receiving antenna and 2 port is used as receiving antenna. Functionally independent two antennas using space diversity arrange slots between two antennas in order to be placed at the same place. As a result, we obtained a excellent isolation below -40dB and return loss is reduced by means of slots arrangement between patch and antenna.

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  Cite this article

[IEEE Style]

B. Han, K. Noh, N. Park, Y. Kang, "Design and Fabrication of Aperture-Coupled Microstrip Patch Antenna for WLL Repeater Using Space Diversity," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 4, pp. 388-396, 2002. DOI: .

[ACM Style]

Bong-hee Han, Kwang-hyun Noh, Nho-jun Park, and Young-jin Kang. 2002. Design and Fabrication of Aperture-Coupled Microstrip Patch Antenna for WLL Repeater Using Space Diversity. The Journal of Korean Institute of Communications and Information Sciences, 27, 4, (2002), 388-396. DOI: .

[KICS Style]

Bong-hee Han, Kwang-hyun Noh, Nho-jun Park, Young-jin Kang, "Design and Fabrication of Aperture-Coupled Microstrip Patch Antenna for WLL Repeater Using Space Diversity," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 4, pp. 388-396, 4. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880