Negative impedance elements and their applications in antenna miniaturization

• 主要作者: Zheng, Yujia.
• 其他作者: Shen Zhongxiang
• 格式: Final Year Project
• 語言: English
• 出版: 2011
• 主題: DRNTU::Engineering::Electrical and electronic engineering::Antennas, wave guides, microwaves, radar, radio
• 在線閱讀: http://hdl.handle.net/10356/42856
• 機構: Nanyang Technological University

Electrically small antennas present high-Q impedance characterized by large reactance and small radiation resistance. For such antennas, the effectiveness of passive matching is severely limited by gain-bandwidth theory, which predicts narrow bandwidths and/or poor gain. It is possible in theory to...