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Antenna Study for IoT Devices
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, The Institute of Technology.
2016 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisText
Abstract [en]

This thesis investigates the possibility to design printed circuit board (PCB) antennas with a maximum area size of 30 x 30 mm^2 at 2.4 GHz. The resulting antenna parameters are compared to those of a commercial, more costly chip antenna, i.e., Antenova A5645. The antenna parameters that were evaluated were the antenna efficiency, the return loss and the voltage standing wave ratio(VSWR). Three types of antennas were firstly selected to be designed, i.e., the patch antenna, Inverted-F antenna and Meandered Inverted-F antenna. Using basic antenna theory, general RF knowledge and through simulations performed with the dedicated software tool ADS, five antenna designs were finally selected to be manufactured. After manufacturing, the antennas were tested in a radiation chamber. At 2.4 GHz, the best simulated antenna efficiency was 78.7%, the return loss was -33.91 dB and the VSWR was 1.041. Not all these simulated values have been proven experimentally through measurements due to insufficient equipment at the moment of performing the experiments. However, the three types of antennas were evaluated in the radiation chamber for their polarization and these measurement results are very close to the equivalent simulation results.

Place, publisher, year, edition, pages
2016. , 30 p.
Keyword [en]
Antenna, patch, inverted-F, meandered inverted-F
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:liu:diva-130011ISRN: LiU-ITN-TEK-G--16/068--SEOAI: diva2:946051
Subject / course
Electrical Engineering
Available from: 2016-07-04 Created: 2016-07-04 Last updated: 2016-07-04Bibliographically approved

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Hedlund, Rickard
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