Publications

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2015
Narbudowicz, A., John, M., Sipal, V., Bao, X. L., and Ammann, M. J., “Design Method for Wideband Circularly Polarized Slot Antennas”, IEEE Transactions on Antennas & Propagation, vol. 63, no. 10, pp. 4271 - 4279, 2015.
2014
Sipal, V., John, M., Neirynck, D., McLaughlin, M., and Ammann, M. J., “Advent of Practical UWB Localization: (R)Evolution in UWB Antenna Research”, in EuCAP 2014 - European Conference on Antennas and Propagation, The Hague, The Netherlands, 2014, pp. 1561-1565.
Sipal, V., Gaetano, D., McEvoy, P., and Ammann, M. J., “Bandwidth scaling of fading properties of on-body wireless channel in Body Area Networks”, in Communications (COMM), 2014 10th International Conference on, Bucharest, Romania, 2014, pp. 1-4.
Sipal, V., Narbudowicz, A., and Ammann, M. J., “Contactless Measurement of Angular Velocity using Circularly Polarized Antennas”, IEEE Sensors Journal, vol. 15, no. 4, pp. 3459-3466, 2014.
Sipal, V., Gaetano, D., McEvoy, P., Ammann, M. J., Brannigan, C., Keating, L., and Horgan, F., “Fading and Rician K-factor in the Ultra Wideband Footwear-Centric Body Area Network”, in EuCAP 2014 - European Conference on Antennas and Propagation, The Hague, The Netherlands, 2014, pp. 2281-2284.
Sipal, V., Gaetano, D., McEvoy, P., and Ammann, M. J., “Impact of Hub Location on the Performance of Wireless Body Area Networks for Fitness Applications”, IEEE Antennas and Wireless Propagation Letters, vol. 14, pp. 1522 - 1525, 2014.
Sipal, V., Narbudowicz, A., and Ammann, M. J., “Interview with D.V. Sipal”, Electronic Letters, vol. 50, no. 11, p. 780, 2014.
Frolik, J., Sipal, V., and Edwards, D. J., “Leveraging Depolarization to Increase the Link Reliability for Wireless Sensors Operating in Hyper-Rayleigh Environments”, IEEE Sensors Journal, 2014.
Sipal, V., Narbudowicz, A., and Ammann, M. J., “Using near-field coupled circularly polarised antennas as frequency-independent variable phase shifters”, Electronics Letters, vol. 50, no. 11, pp. 788-790, 2014.
2013
Sipal, V., Gelabert, J., Stevens, C. J., Allen, B., and Edwards, D. J., “Adaptive OFDM for Wireless Interconnect in Confined Enclosures”, IEEE Wireless Communications Letters, vol. 2, no. 5, pp. 507 - 510, 2013.
Sipal, V., Browne, J. E., McEvoy, P., and Ammann, M. J., “Evaluation of Antenna Suitability for the Use in Radiomyography”, in LAPC - Loughborough Antennas & Propagation Conference, Loughborough, UK, 2013, pp. 404-409.
Gaetano, D., Sipal, V., McEvoy, P., Ammann, M. J., Brannigan, C., Keating, L., and Horgan, F., “Footwear-centric body area network with directional UWB antenna”, Electronics Letters, vol. 49, no. 14, pp. 860 – 861, 2013.
2012
Sipal, V., Allen, B., and Edwards, D. J., “Multi-tone frequency shift keying for ultrawideband wireless communications”, IET Communications, vol. 6, pp. 1170–1178, 2012.
Sipal, V., Allen, B., Edwards, D. J., and Honary, B., “Twenty years of ultrawideband: opportunities and challenges”, IET Communications, vol. 6, pp. 1147–1162, 2012.
2011
Sipal, V., Allen, B., and Edwards, D. J., “Exploration of Nakagami fading in ultra-wideband wireless channels”, Electronics letters, vol. 47, pp. 520–521, 2011.
Sipal, V., Gelabert, J., Stevens, C. J., Allen, B., and Edwards, D. J., “Frequency-selective fading of ultrawideband wireless channels in confined environments”, IET Microwaves, Antennas & Propagation, vol. 5, no. 11, pp. 1328 - 1335, 2011.
Sipal, V., Ajami, A., and Heberling, D., “Miniaturisation of Epsilon-negative transmission line based zeroth-order resonator antenna”, IET Microwaves, Antennas & Propagation, vol. 5, pp. 10–16, 2011.
2010
Sipal, V., Allen, B., and Edwards, D. J., “Analysis and mitigation of antenna effects on the wideband wireless channel”, Electronics Letters, vol. 46, no. 16, pp. 1159-1160, 2010.
Sipal, V., Ajami, A., and Heberling, D., “Effect of Substrate Dimensions on Zeroth-Order Resonator Antennas”, IEEE Antennas and Wireless Propagation Letters, vol. 9, pp. 107–109, 2010.