Miniaturized implantable broadband antenna for biotelemetry communication

A body-implantable miniaturized and broadband stacked antenna suitable for biotelemetry communication is proposed. By properly arranging a rectangular three-layer slotted patch structure, the designed antenna with only 10 × 10 × 1.9 mm3 can provide a −10 dB impedance bandwidth of 50 MHz in the 402–405 MHz medical-implant-communication-service frequency band. When compared with the reported most compact antenna, the proposed design achieves not only a more monopole-like radiation pattern with a double-radiation efficiency of 0.61% but also a size reduction of 43%. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2407–2409, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23649