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Vol. 168, Issue 4, April 2014, pp. 87-92




The Study of a Novel Patch Antenna Sensor

1 Chunyao Lin, 1 Xiaobo Ou, 2 Junfeng Wu, 2, * Youyuan Wang

1 Electric Power Research Institute of Guang Dong Power Grid Company, No. 73 Meihua Road, Yue Xiu District Guang Zhou, Guang Dong Province, 510080, China
2 State Key Laboratory of Power Transmission Equipment & System Safety and New Technology, No. 174 Sha Zhenjie, Sha Pingba District Chongqing, 400044, China
* Tel.: +86 13883875139, fax: 65108222

* E-mail: y.wang@cqu.edu.cn


Received: 16 January 2014 /Accepted: 7 April 2014 /Published: 30 April 2014

Digital Sensors and Sensor Sysstems


Abstract: In order to improve the bandwidth of the traditional patch antenna, a new antenna sensor based on the U-slot antenna was designed in this paper. The electromagnetic simulation software Ansys-HFSS was used to analyze the impact of the antenna parameters, and short circuit loaded half U-slot antenna with a slot ground plane was designed at last. The main bandwidth of the antenna sensor ranges from 670 MHz to 839 MHz, while the dimension of the sensor is small enough. The size of the antenna patch is just 70?42 mm. Although the directivity of the antenna is not good enough, it can be used to detect the ultra high frequency electromagnetic signals emitted from partial discharge sources in the power transformers.


Keywords: Half-U slot antenna, Ansys-HFSS, Slot ground plane, Ultra high frequency, Power transformer.


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