Via-less CRLH-TL unit cells loaded compact and bandwidth-enhanced metamaterial based antennas |
| |
| Affiliation: | 1. Department of Electronics and Communication Engineering, Feroze Gandhi Institute of Engineering and Technology, Raebareli 229316, India;2. Dr. A.P.J. Abdul Kalam Technical University, Lucknow 226031, India;3. Department of Electronics and Communication Engineering, SRM Institute of Science and Technology, Chennai 603203, India;4. School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi 110067, India;5. Department of Electronics and Communication Engineering, Noida Institute of Engineering and Technology, Greater Noida 201306, India;1. School of Science, Jimei University, Xiamen 361021, China;2. School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China;3. School of Opto-electronic and Communication Engineering, Xiamen University of Technology, Xiamen 361024, China;1. Faculty of Engineering, Minia University, Egypt;2. Electronic Engineering Department, MTC College, Cairo, Egypt |
| |
| Abstract: | The via-less composite right hand left hand (CRLH)-TL unit cells loaded compact and bandwidth-enhanced metamaterial (MTM) antennas have been designed and experimentally investigated. Four novel unit cells are designed and its dispersion characteristics of the proposed unit cells are numerically calculated which follows CRLH-TL properties. Further, the conventional metallic vias of CRLH-TL have been eliminated to increase the fabrication flexibility. The four CRLH-TL unit cells are loaded into monopole antennas which result, four via-less open-ended MTM antennas respectively. Its ZOR (zeroth order resonance) bandwidth is increased by realizing small shunt capacitance and large shunt inductance. Further, to increase overall antenna bandwidth, merging of ZOR mode to the higher and lower order modes into a single pass band has been done by realizing proper CRLH-TL unit cells. The each proposed antenna has a dimension of 0.13λ0 × 0.08λ0 × 0.0085λ0, where the free space wavelength λ0 at 1.6 GHz. The four proposed antennas have S11 < ?10 dB fractional bandwidths (FBW) 173% (1–13.6 GHz), 169% (1.2–14.5 GHz), 158% (1.6–13.5 GHz) and 158% (1.6–13.5 GHz) respectively. The optimum gain and desired radiation characteristics have been obtained for all proposed antennas, which can be suitable for UWB applications. The CST-MWS has been used for the parametric study of the proposed antennas. A good agreement has been observed between simulated and experimental results. |
| |
| Keywords: | CLRH unit cell CPW fed Metamaterial Monopole antenna UWB Via-less |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
