Planar Dual-Band Electrically Small Antenna Based on Double-Negative Metamaterials

• 作者: Cheng Zhou Guangming Wang Yu Xiao
• 来源期刊: 电脑和通信(英文)
• 学科: 医学
• 关键词: Electrically SMALL PLANAR EFFICIENCY Quality
• 年，卷（期）: 2015,（3）
• 页码范围: 27-34
• 页数: 8页
• 分类号: R73

摘要

A coaxially fed dual-band electrically small antenna based on double-negative metamaterials is presented in this letter. The antenna consists of a microstrip patch antenna as driven element and a double-negative metamaterials shell as parasitic element. Nearly complete matching of the entire system to a 50 Ω source without any matching network is achieved at 299 MHz and 837 MHz, with ka = 0.444 and 1.242 respectively. Measured performance agrees with simulations, and the proposed antenna has considerable radiation efficiency and is suitably employed for VHF and UHF applications.