Title :
Active Integrated Wearable Textile Antenna With Optimized Noise Characteristics
Author :
Declercq, Frederick ; Rogier, Hendrik
Author_Institution :
Dept. of Inf. Technol., Ghent Univ., Ghent, Belgium
Abstract :
The design of the first wearable active receiving textile antenna in the 2.45 GHz ISM band is addressed for use in personal area networks. The integrated low-noise amplifier is realized on a hybrid textile substrate and positioned directly underneath a wearable patch antenna. The antenna and low-noise amplifier are designed by means of circuit/full-wave co-optimization techniques within a novel multi-platform simulation setup to account for all the losses induced by using textile materials. A good agreement between simulations and measurements is obtained. An available gain of about 12 dB, on top of the passive antenna gain of about 5 dBi, and a noise figure of about 1.3 dB are realized. The effect of the human body on the active antenna performance is investigated by means of on-body measurements.
Keywords :
clothing; low noise amplifiers; low-power electronics; microstrip antennas; personal area networks; wearable antennas; wearable computers; active integrated wearable textile antenna; hybrid textile substrate; integrated low-noise amplifier; on-body measurements; optimized noise characteristics; patch antenna; personal area networks; textile materials; Active noise reduction; Antenna measurements; Biological system modeling; Circuit simulation; Low-noise amplifiers; Noise figure; Patch antennas; Personal area networks; Receiving antennas; Textiles; Active integrated antenna; textile substrates; wearable computing;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2010.2052555
