Crumpling of Microstrip Antenna Array

The performance of a 2 × 2 microstrip patch array under crumpling conditions is presented. The antenna array was manufactured on textile material, and three cases of crumpling resembling real applications are discussed. The performance of the individual patch elements correlate with the overall performance of the array. Frequency shifts of up to 6% are measured for the array when crumpled, the boresight gain is reduced by up to 6 dB with significant changes in directivity and efficiency, up to 20%. The overall efficiency for the textile array increases for crumpling in one plane but falls in the other.

[1]  Simon L. Cotton,et al.  Indoor channel characterisation for a wearable antenna array at 868 MHz , 2006, IEEE Wireless Communications and Networking Conference, 2006. WCNC 2006..

[2]  T. F. Kennedy,et al.  Body-Worn E-Textile Antennas: The Good, the Low-Mass, and the Conformal , 2009, IEEE Transactions on Antennas and Propagation.

[3]  H. Al‐Rizzo,et al.  Miniaturized microstrip antenna array with ultra mutual coupling reduction for wearable MIMO systems , 2011, 2011 IEEE International Symposium on Antennas and Propagation (APSURSI).

[4]  R. Langley,et al.  Dual-Band Wearable Textile Antenna on an EBG Substrate , 2009, IEEE Transactions on Antennas and Propagation.

[5]  M. Kivikoski,et al.  Effect of textile materials on wearable antenna performance: a case study of GPS antennas , 2004, IEEE Antennas and Propagation Society Symposium, 2004..

[6]  P. de Maagt,et al.  Design and Manufacturing of Robust Textile Antennas for Harsh Environments , 2012, IEEE Transactions on Antennas and Propagation.

[7]  Q. Bai,et al.  Crumpling of compact textile antennas , 2011, Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP).

[8]  G. Manara,et al.  A wearable multi antenna system on a life jacket for Cospas Sarsat rescue applications , 2011, 2011 IEEE International Symposium on Antennas and Propagation (APSURSI).

[9]  Y. Rahmat-Samii,et al.  Effect of conductive material on wearable antenna performance: a case study of WLAN antennas , 2004, IEEE Antennas and Propagation Society Symposium, 2004..

[10]  David James Love,et al.  Body-Worn Distributed MIMO System , 2009, IEEE Transactions on Vehicular Technology.

[11]  Y Bayram,et al.  E-Textile Conductors and Polymer Composites for Conformal Lightweight Antennas , 2010, IEEE Transactions on Antennas and Propagation.

[12]  D. Pozar.  Input impedance and mutual coupling of rectangular microstrip antennas , 1982 .

[13]  Sangwook Nam,et al.  Embroidered Wearable Multiresonant Folded Dipole Antenna for FM Reception , 2010, IEEE Antennas and Wireless Propagation Letters.

[14]  G. Troster,et al.  Design and Characterization of Purely Textile Patch Antennas , 2006, IEEE Transactions on Advanced Packaging.

[15]  E. H. Newman,et al.  Two methods for the measurement of antenna efficiency , 1975 .

[16]  Qiang Bai,et al.  Crumpling of PIFA Textile Antenna , 2012, IEEE Transactions on Antennas and Propagation.

[17]  Richard J. Langley,et al.  Crumpled textile antennas , 2009 .

[18]  Yahya Rahmat-Samii,et al.  Textile antennas: effects of antenna bending on input matching and impedance bandwidth , 2006, IEEE Aerospace and Electronic Systems Magazine.

[19]  Richard J. Langley,et al.  Crumpled integrated AMC antenna , 2009 .

[20]  H. A. Wheeler.  The Radiansphere around a Small Antenna , 1959, Proceedings of the IRE.

[21]  L. Vallozzi,et al.  A Textile Antenna for Off-Body Communication Integrated Into Protective Clothing for Firefighters , 2009, IEEE Transactions on Antennas and Propagation.

[22]  Richard J. Langley,et al.  Dual-band triangular patch antenna with modified ground plane , 2007 .

[23]  M. Kivikoski,et al.  Wearable antennas for FM reception , 2006, 2006 First European Conference on Antennas and Propagation.