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A Rectangular Aperture Antenna Fed by Planar Plate Monopole for UWB Applications

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2 Author(s)
Buttachin, R. ; Fac. of Eng. & Res. Center for Commun. & Inf. Technol., King Mongkut''s Inst. of Technol. Ladkrabang, Bangkok ; Phongcharoenpanich, C.

This paper presents the rectangular aperture antenna fed by planar plate monopole for ultra-wideband applications. Various wireless communication systems are operated at different frequencies. Thus, antenna which is capable for application in broadband is studied. The proposed antenna can be fulfilled the application requirement as mentioned above. According to its benefits, low cost and compact size are desired. In addition, the geometry antenna is easy. This proposed antenna radiates unidirectional pattern. In order to design the antenna, the parametric study is also discussed in this paper to determine the suitable parameter with desired characteristics such as impedance characteristic and radiation pattern. It is not easy for design the antenna with both desired unidirectional pattern and very wide bandwidth. From the simulation, at the frequency of UWB spectrum of 3.1 GHz, 7.0 GHz and 10.6 GHz, the gains equal to 4.33 dBi, 7.42 dBi and 5.58 dBi, respectively. The front-to-back ratios of 3.1 GHz, 7.0 GHz and 10.6 GHz equal to 3.70 dB, 17.53 dB and 29.38 dB, respectively. The measured and simulated result of return loss is lower than 10 dB at frequency of UWB communication system.

Published in:

Microwave Conference, 2007. APMC 2007. Asia-Pacific

Date of Conference:

11-14 Dec. 2007