This is an absolutely exhaustive document from our friends at Cypress Semiconductor on antenna designs and RF layouts, specifically looking at implementations using their PRoC BLE and PSoC 4 BLE 2.4-GHz radios, with supporting Smith charts, and examinations of band emissions, network topologies, and much, much more. If you have a long train ride in your near future or are looking for a good antenna/RF read, take a look at this white paper.
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