Future Vogues in Handset Antenna Systems

Pelosi, Mauro; Pedersen, Gert Frølund

doi:10.1109/vetecf.2011.6092932

Cited by 11 publications

(8 citation statements)

References 9 publications

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“…Several time-varying conditions contribute to the misunderstanding of the real RSS value at receiver side such as user movement, orientation, hand-grip and posture [1]. While using a very simplistic approach, the human body can be modeled electromagnetically as a homogeneous dielectric cylinder, Additionally, the hand's influence, due to the close proximity, is greater than the rest of the body [11] [ 14] causing very sensitive variations of the RSS also related to the relative position of individual fingers [9], [10].…”

Section: ) Body-lossmentioning

confidence: 99%

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Exploiting RSS measurements among neighbouring devices: A matter of trust

Rosa¹,

Paakki²,

Nurmi³

et al. 2013

International Conference on Indoor Positioning and Indoor Navigation

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In this paper we present experimental evaluations of cooperative ranging-based approaches in mobile positioning.Our main contribution is represented by experimental investigations, analysis of the errors introduced in the distance estimation and exploitation of the knowledge of environmental perturbations with a NLLS algorithm, highlighting the limits of such cooperative schemes, proving that the effect of cooperation might be very limited in real-life scenarios.

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Section: ) Body-lossmentioning

confidence: 99%

“…[1] [9]. Moreover, small-scale variations of the signal power need to be accounted for in the fading part, which also depends on the speed of the MSs [11].…”

Section: ) Pathloss Shadowing and Muitipath Effectsmentioning

confidence: 99%

Exploiting RSS measurements among neighbouring devices: A matter of trust

Rosa¹,

Paakki²,

Nurmi³

et al. 2013

International Conference on Indoor Positioning and Indoor Navigation

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“…Such an approach is proposed to have separate transmitter (Tx) and receiver (Rx) path throughout the FE [8][9][10], thus requiring separate Tx and Rx antennas. Since these two antennas need to cover only the transmit and receive channels in a band, they can be quite narrow band.…”

Section: Introductionmentioning

confidence: 99%

Self‐matched high‐ Q reconfigurable antenna concept for mobile terminals

Bahramzy

Jagielski²,

Svendsen³

et al. 2014

IET Science, Measurement & Technology

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This study presents reconfigurable antenna design for a front end (FE) that has separate transmit (Tx) and receive (Rx) path. In such an FE, the Tx and Rx antennas can be content with covering only the transmit and receive channels in a frequency band. Therefore they can be quite narrow-band. Narrow-band antennas can exhibit high losses, because of the relative high current density per area and limited tuning/matching component Q. To address this, a self-matched antenna design is introduced, having the tunable capacitor as the only physical component. The Tx and Rx narrow-band antennas are designed to cover the frequency range 1710-2170 MHz. Metrics as for example, impedance bandwidth and efficiency are obtained both in simulations and measurements.

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“…Using Separate Transmit and Receive Method (STRM), mentioned in [5], the Transmit (Tx) and Receive (Rx) narrowband antennas can be tuned to their respective channels in a certain LTE band. Because of the narrow-band characteristic of the high Q antennas, it is possible to mitigate the mutual coupling, that otherwise is strong when two antennas sharing the same ground plane, are operating at Tx and Rx architecture.…”

Section: Introductionmentioning

confidence: 99%