1. A wideband printed slot antenna with harmonic suppression.
- Author
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Li, Wei‐Wen, Qin, Zhao‐Zhao, Chen, Si‐Jie, Zhang, Liang, and Liu, Qing‐Huo
- Subjects
BROADBAND communication systems ,SLOT antennas ,MICROWAVES ,ELECTRICAL harmonics ,MICROSTRIP antennas - Abstract
Abstract: A wideband slot antenna with harmonic suppression is proposed to utilize the environment microwave energy. The antenna element is a printed narrow slot with an offset microstrip‐feed line to widen the operating band by generating the double resonance of similar frequencies. By adding a rectangular notch in the middle of slot element and grounding the microstrip terminal, its second‐order and third‐order harmonics are effectively suppressed. The experimental results of the prototype antenna show that the fractional bandwidth of its fundamental mode can reach 37.4%, while the antenna efficiencies of the second and third harmonics both are less than 23%. In the operating band the prototype antenna has the approximately omnidirectional radiation characteristic. This antenna structure also provides relaxed fabrication tolerances. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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