Small-Size Dual-Antenna Implantable System for Biotelemetry Devices

A dual-element miniaturized implantable antenna is designed and experimentally demonstrated at Medical Device Radiocommunications Service (MedRadio) (401-406 MHz) band for wireless biomedical multiple-input-multiple-output (MIMO) applications. First, a single-fed planar monopole antenna is designed by embedding the spiral line as a radiator and helix line on the ground. The proposed antenna element can obtain effective size reduction and wide impedance characteristic at a fixed frequency operation. Second, two antenna elements were placed in close to study the coupling strength of the two elements. The proposed MIMO antenna has dimensions of 22 × 22 × 0.635 mm3. The simulated and measured impedance bandwidths are 35.9% and 61.7%, respectively. The measured maximum mutual coupling is below -26 dB at MedRadio Band.

[1]  M. N. S. Swamy,et al.  Performance analysis of a MIMO scheme for watermarked medical images transmission over Rayleigh fading channels , 2012, 2012 IEEE-EMBS Conference on Biomedical Engineering and Sciences.

[2]  John C. Batchelor,et al.  Antennas and Propagation for Body-Centric Wireless Communications , 2012 .

[3]  D. Panescu.  Emerging Technologies [wireless communication systems for implantable medical devices] , 2008, IEEE Engineering in Medicine and Biology Magazine.

[4]  A. K. Skrivervik,et al.  Design, Realization and Measurements of a Miniature Antenna for Implantable Wireless Communication Systems , 2011, IEEE Transactions on Antennas and Propagation.

[5]  Shaoqiu Xiao,et al.  Compact Dual-Band Antenna for Implantable Devices , 2012, IEEE Antennas and Wireless Propagation Letters.

[6]  C.M. Furse,et al.  Design of implantable microstrip antenna for communication with medical implants , 2004, IEEE Transactions on Microwave Theory and Techniques.

[7]  Joshua Le-Wei Li,et al.  Decoupled Planar WWAN Antennas With T-Shaped Protruded Ground for Smartphone Applications , 2014, IEEE Antennas and Wireless Propagation Letters.

[8]  Yan Wang,et al.  A Printed Dual-Antenna System Operating in the GSM1800/GSM1900/UMTS/LTE2300/LTE2500/ 2.4-GHz WLAN Bands for Mobile Terminals , 2014, IEEE Antennas and Wireless Propagation Letters.

[9]  Shaoqiu Xiao,et al.  Circularly Polarized Helical Antenna for ISM-Band Ingestible Capsule Endoscope Systems , 2014, IEEE Transactions on Antennas and Propagation.

[10]  Chao-Ming Wu,et al.  Bandwidth enhancement and size reduction of an implantable PIFA antenna for biotelemetry devices , 2009 .

[11]  M.A. Jensen,et al.  A review of antennas and propagation for MIMO wireless communications , 2004, IEEE Transactions on Antennas and Propagation.

[12]  H. Yoo,et al.  A Planar MICS Band Antenna Combined With a Body Channel Communication Electrode for Body Sensor Network , 2009, IEEE Transactions on Microwave Theory and Techniques.

[13]  Chien-Min Cheng,et al.  Development of Nonsuperstrate Implantable Low-Profile CPW-Fed Ceramic Antennas , 2010, IEEE Antennas and Wireless Propagation Letters.

[14]  Zhengwei Du,et al.  Decoupled Dual-Antenna System Using Crossed Neutralization Lines for LTE/WWAN Smartphone Applications , 2015, IEEE Antennas and Wireless Propagation Letters.

[15]  Chien-Ming Lee,et al.  Dual-resonant π-shape with double L-strips PIFA for implantable biotelemetry , 2008 .

[16]  M. Takahashi,et al.  Performances of an Implanted Cavity Slot Antenna Embedded in the Human Arm , 2009, IEEE Transactions on Antennas and Propagation.

[17]  A. Kiourti,et al.  Miniature Scalp-Implantable Antennas for Telemetry in the MICS and ISM Bands: Design, Safety Considerations and Link Budget Analysis , 2012, IEEE Transactions on Antennas and Propagation.

[18]  R. Murch,et al.  Isolation Enhancement Between Two Closely Packed Antennas , 2008, IEEE Transactions on Antennas and Propagation.

[19]  Muhammad Saeed Khan,et al.  A Miniaturized Dual-Band MIMO Antenna for WLAN Applications , 2015, IEEE Antennas and Wireless Propagation Letters.

[20]  Y. Rahmat-Samii,et al.  Implanted antennas inside a human body: simulations, designs, and characterizations , 2004, IEEE Transactions on Microwave Theory and Techniques.

[21]  E. Topsakal,et al.  Design of a Dual-Band Implantable Antenna and Development of Skin Mimicking Gels for Continuous Glucose Monitoring , 2008, IEEE Transactions on Microwave Theory and Techniques.

[22]  Yan Wang,et al.  A Wideband Printed Dual-Antenna System With a Novel Neutralization Line for Mobile Terminals , 2013, IEEE Antennas and Wireless Propagation Letters.

[23]  Shaoqiu Xiao,et al.  Capacitively Loaded Circularly Polarized Implantable Patch Antenna for ISM Band Biomedical Applications , 2014, IEEE Transactions on Antennas and Propagation.