The designed antenna covers widely used 2.4 GHz ISM band for internet of things (IOT) and
medical applications. It can also be used for IRNSS-1, S-band (2484 MHz to 2500 MHz)
GPS tracking application. The wearable antenna button is designed on a circular piece of
low cost FR-4 epoxy substrate with radius 10 mm only. The operating frequency range of the
antenna is 2.37 GHz to 2.6 GHz with 230 MHz bandwidth and 2.6 dB peak gain at 2.4 GHz …