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- Title
Compact 433 MHz antenna for wireless smart system applications.
- Authors
Buckley, J.; Gaetano, D.; McCarthy, K. G.; Loizou, L.; O'Flynn, B.; O'Mathuna, C.
- Abstract
A compact, planar antenna operating at 433 MHz is proposed for wireless smart systems with dimensions of 51 x 28 mm² including a ground plane, and printed on a low-cost FR4 material. Significant size reduction is achieved using the variation of an inverted-F antenna configuration with a square-spiral section and rectangular patch element. Fine-tuning of the antenna's resonant frequency is possible using a small capacitive stub. Sensor and radio transceiver electronics can be accommodated above the ground plane. The measured results indicate a 10 dB return loss bandwidth of 4.5 MHz, and a peak realised gain of -13 dBi with omnidirectional radiation characteristics.
- Subjects
PLANAR antennas; RADIO transmitter-receivers; ELECTRONIC circuits; WIRELESS communications equipment; WIRELESS sensor nodes; OMNIRANGE system
- Publication
Electronics Letters (Wiley-Blackwell), 2014, Vol 50, Issue 8, p572
- ISSN
0013-5194
- Publication type
Article
- DOI
10.1049/el.2013.4312