Compact Coplanar Waveguide (CPW)-Fed Zeroth-Order Resonant Antennas With Extended Bandwidth and High Efficiency on Vialess Single Layer
- Authors
- Jang, Taehee; Choi, Jaehyurk; Lim, Sungjoon
- Issue Date
- Feb-2011
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Co-planar waveguide (CPW); composite right/left-handed transmission line; metamaterials; small antenna
- Citation
- IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v.59, no.2, pp 363 - 372
- Pages
- 10
- Journal Title
- IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
- Volume
- 59
- Number
- 2
- Start Page
- 363
- End Page
- 372
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/21751
- DOI
- 10.1109/TAP.2010.2096191
- ISSN
- 0018-926X
- Abstract
- This paper presents the design and analysis of compact coplanar waveguide (CPW)-fed zeroth-order resonant (ZOR) antennas. They are designed on a CPW single layer where vias are not required. The ZOR phenomenon is employed to reduce the antenna size. The novel composite right/left-handed (CRLH) unit cell on a vialess single layer simplifies the fabrication process. In addition, the CPW geometry provides high design freedom, so that bandwidth-extended ZOR antennas can be designed. The antenna's bandwidth is characterized by the circuit parameters. Based on the proposed bandwidth extension technique, symmetric, asymmetric, and chip-loaded antennas are designed. The ZOR characteristic and bandwidth extension are verified by a commercial EM simulator. Their performances are compared with those of previously reported metamaterial resonant antennas. They provide further size reduction, higher efficiency, easier manufacturing, and extended bandwidth.
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