Abstract
A flexible quasi-Yagi printed antenna that is a compact, efficient directive radiator is demonstrated. The simple uniplanar design incorporates an arc-shaped strip, which serves as a near-field resonant parasitic (NFRP) element, and a coplanar-waveguide (CPW)-fed semiloop antenna. The simulated and experimental results that are in good agreement confirm the forward endfire nature of the antenna. The total electrical size is only 0.17λ0 × 0.43λ0, while having a high radiation efficiency to achieve a 5.76 dBi realized gain. A backward endfire version illustrates the radiation principles of the design. By mounting the uniplanar antenna conformally on a cylindrical structure, it is demonstrated numerically and experimentally that its radiation performance characteristics are maintained, confirming that only minor effects are introduced under bending conditions.
Original language | English (US) |
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Article number | 7289377 |
Pages (from-to) | 5343-5350 |
Number of pages | 8 |
Journal | IEEE Transactions on Antennas and Propagation |
Volume | 63 |
Issue number | 12 |
DOIs | |
State | Published - Dec 1 2015 |
Keywords
- Compact
- directivity
- endfire radiation
- flexible antennas
- printed antennas
- uniplanar antennas
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics