一种提高贴片天线增益和带宽的新方法

Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194) Pub Date : 1998-08-09 DOI:10.1109/RAWCON.1998.709176

Y. Qian, D. Sievenpiper, V. Radisic, E. Yablonovitch, T. Itoh

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引用次数: 77

摘要

微带贴片是无线通信系统和射频传感器低成本、紧凑设计的首选天线结构之一。为了克服贴片天线固有的带宽窄、增益低和高频辐射效率下降等问题，我们提出了一种基于光子带隙(PBG)概念的增益和带宽增强新技术。与相同尺寸的普通贴片相比，ku波段原型的带宽提高了3倍以上，增益提高了1.6 dB，有效辐射功率(ERP)增加了45%。系统设计问题，如共站干扰也可以通过改进的波束模式的新PBG天线缓解。

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A novel approach for gain and bandwidth enhancement of patch antennas

The microstrip patch is one of the most preferred antenna structures for low-cost and compact design of wireless communication systems and RF sensors. To overcome several intrinsic limitations of the patch antenna such as narrow bandwidth, low gain, and degradation of radiation efficiency at higher frequencies, we propose a novel technique for gain and bandwidth enhancement based on the photonic band-gap (PBG) concept. The Ku-band prototype demonstrates over 3 times bandwidth improvement, and 1.6 dB higher gain or 45% increase in effective radiated power (ERP), compared with a regular patch with identical dimensions. System design issues such as co-site interference can also be alleviated by the improved beam patterns of the new PBG antenna.

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来源期刊

Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194)

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