| CPW Feed Wideband U-slot Microstrip Antenna |
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Jong-In Lee1, Byoung-Moo Lee2, Young-Joong Yoon2 |
1R&D Group 1, Mobile & Communication Division, Samsung Electronics Co., Ltd.
2Dept. of Electronics Eng., Yonsei Univ. |
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| Abstract |
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In this paper, we have proposed the new configuration of wideband antenna using CPW fred lines. The proposed antenna has CPW feed lines and U-slot to achieve wade bandwidth with good impedance matching. The use of CPW feed line can decrease the number of substrates. It is compared with the conventional antenna find by a microstrip fled line. The parameters of CPW fred lines were studied by using the quasi-static approximation which is based on the conformal mapping method. The analysis of CPW discontinuities such as the tapered-step structure and the open ended gap were studied by using the quasi-static approximation which is based on the boundary element method. Also, the equivalent circuit model of multi-layer antenna were proposed using the cavity model. Experiment results of the proposed antenna 7how wide-bandwidth characteristics and good radiation patterns in passband. |
| Key words:
wideband, U-slot, CPW feed line, microstrip antenna. |
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