The concept of wearable products such as textile antenna are being developed which are capable of monitoring, alerting, and demanding attention whenever hospital emergency is needed, hence minimizing labor and resource. In the proposed work using textile material as a substrate, the ultra wideband antenna is designed especially for medical applications. Simulated and measured results here shows that the proposed antenna design meets the requirements of wide working bandwidth and provides 13.08 GHz bandwidth with very small size, washable (if using conductive thread for conductive parts) and flexible materials. Results in terms of bandwidth, radiation pattern, return loss as well as gain and efficiency are presented to validate the usefulness of the current proposed design. The work done here has many implications for future research and it could help patients with such flexible and comfortable medical monitoring techniques. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1553–1557, 2015

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In this communication, quad port MIMO antenna is designed and examined. It is designed by ring shaped ceramic material. The main attribute of proposed analysis are: (a) dual radiating modes are created in the ring shaped ceramic resonator, that is, HE 11δ and HE 12δ mode with the assistance of pentagon ring shaped aperture; (b) with the help of polarization and space diversity, the mutual coupling is lower than −20 dB among the ports; and (c) ring shaped ceramics provides better bandwidth performance as compare to cylindrical shaped ceramic. Measured results of fabricated protytpe confirms that the proposed radiator functions over two frequency ranges, that is, 2.45 to 2.75 GHz and 4.8 to 5.75 GHz. The value of ECC is also within the limit. All these features make the radiator applicable for wireless local area network (2.4 GHz) and WiMAX (2.5/5.1 GHz) applications. K E Y W O R D S dielectric resonator antenna, MIMO antenna, multiband antenna, wireless LAN

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