A novel in‐the‐ear (ITE) antenna solution for hearing instruments that operates at 2.45 GHz is presented. The antenna consists of a quarter wave monopole and a ground plane that are placed in the ear. The simulated path gain | S 21 | is − 86 dB and the measured path gain is − 80 dB. Simulations and measurements show that the antenna covers the entire 2.40–2.48 GHz industrial, scientific and medical (ISM) band. It is the first ever ITE‐antenna solution that demonstrates the possibility of establishing an ear‐to‐ear link by using a standard Bluetooth chip.
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Kammersgaard et al. (2014) studied this question.
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