Broadband Monopolar Microstrip Patch Antenna With Shorting Vias and Coupled Ring
- 18 December 2013
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Antennas and Wireless Propagation Letters
- Vol. 13, 39-42
- https://doi.org/10.1109/lawp.2013.2295686
Abstract
A center-fed circular patch antenna with shorting vias and a coupled annular ring is proposed. With a low-profile configuration, the antenna provides a wide bandwidth by merging three resonant modes, including the TM 02 mode of the circular patch, the TM 01 mode generated by the shorting vias, and the TM 02 mode of the coupled annular ring. The antenna operating in these modes would produce an omnidirectional pattern in the horizontal plane similar to that generated by a monopole antenna. A reduced structure is used to simplify the simulation in optimizing the bandwidth of the antenna. Measured results show that the antenna achieves a bandwidth of 27.4% for a profile of 0.029 wavelengths and has a gain of about 6 dBi.Keywords
Funding Information
- Nature Science Foundation of China (61172026)
- Research Project of Guangdong
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