A Truncated Conical Dielectric Resonator Antenna for Body-Area Network Applications

Almpanis, G.; Fumeaux, Christophe; Fröhlich, Jürg; Vahldieck, R.

doi:10.1109/lawp.2008.2005213

Cited by 49 publications

(22 citation statements)

References 12 publications

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“…5(a) insets show the antenna placing in direct contact with skin while held in hand and in front of the armpit. Comparing the simulated (dashed blue) and the two measured curves (full red for hand and dotted magenta for armpit) it is concluded that the three layer body model used here, and most commonly used in the literature ( [6], [7], [10], and [13]) provides good enough approximation for the real human body in this band. Furthermore, comparing these results with those obtained for the antenna in free space (Fig.…”

Section: A Reflection Coefficientmentioning

confidence: 72%

“…onator antenna [10], [11]; metallic folded antennas [12], [13]. The truncated conical dielectric resonator antenna in [10] and the tripod kettle antenna embedded in dielectric in [11] are fairly immune to the body influence but they have a common disadvantage: deep radiation pattern null in the central direction vertical to the antenna plane which tends to create a blind detection spot in this frontal direction.…”

Section: E E E P R O O F P R I N T V E R S I O Nmentioning

confidence: 99%

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Design and Ranging Performance of a Low-profile UWB Antenna for WBAN Localization Applications

Zaric

Costa

Fernandes

2014

IEEE Trans. Antennas Propagat.

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P r o o f P r i n t V e r s i o nAbstract-A very compact low-profile unidirectional UWB antenna is proposed for wireless body area network (WBAN) localization applications by focusing on its ranging performance and impulse fidelity in time domain in addition to frequency domain characteristics. The antenna is immune to direct skin contact, and also demonstrates very good frequency and time domain properties in free space or at any distance to a body: reflection coefficient and radiation pattern resilience to body influence; flat transfer function amplitude and linear phase over the desired frequency band from 6 GHz to 9 GHz. Superior time domain performance is demonstrated in simulation and measurements with average impulse fidelity of 97% in both free space and when placed at 0 mm or 3 mm over the body. Off-body ranging measurements show accuracies of the order of 5 cm and achievable range higher than 5 m for almost all frontal directions (16 m being the maximum), with transmitting power complying with the international regulation.

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Section: A Reflection Coefficientmentioning

confidence: 72%

Section: E E E P R O O F P R I N T V E R S I O Nmentioning

confidence: 99%

Design and Ranging Performance of a Low-profile UWB Antenna for WBAN Localization Applications

Zaric

Costa

Fernandes

2014

IEEE Trans. Antennas Propagat.

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“…Therefore, in this third design step, the hybrid monopole DRA concept, described in [12], is utilized to increase the bandwidth of Port 2. A metal cap is added on top of the electric monopole to shorten it and hence lower the overall antenna profile [13]. The inner radius of the annular cylindrical DR and cap are adjusted to widen the bandwidth response of Port 2 and maximize its overlap with the bandwidth of Port 1.…”

Section: Excitation Of the Tm Modementioning

confidence: 99%

Omnidirectional Cylindrical Dielectric Resonator Antenna With Dual Polarization

Zou

Abbott

Fumeaux

2012

Antennas Wirel. Propag. Lett.

138

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Abstract-This letter proposes an annular cylindrical dielectric resonator antenna (DRA) with two-port diversity realizing simultaneously omnidirectional horizontally and vertically polarized radiation patterns with low cross coupling. The horizontally and vertically polarized radiation patterns are achieved by exciting the orthogonal TE and TM modes in a single cylindrical dielectric resonator (DR). Due to the high -factor of the TE mode, an air gap and multiple feeding lines are introduced to increase the impedance bandwidth. The proposed antenna provides an impedance bandwidth of 19.1% in the vertically polarized mode and an overlapping bandwidth of 7.4% in the horizontally polarized mode, with the overlapping band ranging from 3.78 to 4.07 GHz. Antenna diversity and multiple-input-multiple-output (MIMO) performance are examined in terms of envelope correlation coefficient and mean effective gain.

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“…Preliminary on-body measurement results showed that good performance is generally achieved using a dielectric resonator antenna (DRA) [5] on both sides of the link. In order to see the influence of the antenna type used, one of the measurements was repeated using a circular patch antenna [4] at one side and both sides of the link.…”

Section: Rx Antennamentioning

confidence: 99%

Using impulse Radio UWB for medical monitoring sensor networks: a performance evaluation

Zahner

Lauer

Barras

et al. 2013

2013 7th International Symposium on Medical Information and Communication Technology (ISMICT)

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A compact testbed for real-time UWB performance evaluation in terms of un-coded bit-error rate is presented. Both the transmitter and the receiver are realized in form of a small PCB. This testbed represents a very versatile tool for the evaluation of IR-UWB as physical layer for various wireless technologies. It operates in the frequency range from 3.1-5.0 GHz with a maximum data rate of 10 MBit/s. Several measurements involving the influence of the human body are performed in a laboratory room in order to get a realistic picture of the performance and reliability that can be expected using IR-UWB for body area networks. In this paper the focus is set on medical monitoring applications. A body area sensor network was emulated and showed good connectivity for all tested scenarios. At a data rate of 10 Mbit/s the measured bit-error rate was better than 10 -5 for every node operating in the network.

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A Truncated Conical Dielectric Resonator Antenna for Body-Area Network Applications

Cited by 49 publications

References 12 publications

Design and Ranging Performance of a Low-profile UWB Antenna for WBAN Localization Applications

Design and Ranging Performance of a Low-profile UWB Antenna for WBAN Localization Applications

Omnidirectional Cylindrical Dielectric Resonator Antenna With Dual Polarization

Using impulse Radio UWB for medical monitoring sensor networks: a performance evaluation

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