Parametric analysis of meandered inverted-F antenna and use of a High impedance surface based ground plane for WBAN applications

Pradhan, Omkar; Newman, Keith; Barnes, Frank S.

doi:10.1109/bsn.2013.6575496

Cited by 8 publications

(2 citation statements)

References 20 publications

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“…Its dimension is 50 × 50 × 55.2mm . Total thickness is 55.2 mm, skin 3mm, fat 22.2mm, muscle 30mm [9]. The effect of water content in tissues is not considered in the simulation.…”

Section: Human Body Modelmentioning

confidence: 98%

Printed monopole UWB antenna with EBG structure for Wireless Body Area Network

Reghunath

Sukumaran

2014

2014 International Conference on Contemporary Computing and Informatics (IC3I)

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This paper introduces a printed monopole antenna which works in both lower and upper ultra wide-band(UWB) regions. Wireless Body Area Network (WBAN) is a rapidly advancing technology that has a variety of applications in health care and personal entertainment. IEEE Standard 802.15.6 allows us to use UWB as a promising candidate for WBAN. In this paper, mushroom-like electromagnetic band gap (EBG) stucture is used for the band notched design, and it rejects unwanted band ranging from 4.74-6.22 GHz. Antenna shows sufficient impedance bandwidth and nearly omnidirectional radiation characteristics. Specific Absorption Ratio(SAR) is also studied to know the biological effects of the antenna.

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“…Its dimension is 50 × 50 × 55.2mm . Total thickness is 55.2 mm, skin 3mm, fat 22.2mm, muscle 30mm [9]. The effect of water content in tissues is not considered in the simulation.…”

Section: Human Body Modelmentioning

confidence: 98%

Printed monopole UWB antenna with EBG structure for Wireless Body Area Network

Reghunath

Sukumaran

2014

2014 International Conference on Contemporary Computing and Informatics (IC3I)

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“…A WiFi connection between the transmitter and receiver is established using Espressif's wireless communication protocol, ESP-NOW 3 , and PIFA system. The system depicted in Figure 2a utilizes the built-in meandered printed inverted-F antenna (PIFA) 5 [12] of the ESP32-S3-WROOM-1 module. The PIFA alone can provide basic WiFi connectivity in most traditional scenarios, however, it is not ideal for HAR applications.…”

Section: A Hardwarementioning

confidence: 99%

WiFi CSI-Based Long-Range Through-Wall Human Activity Recognition with the ESP32

Strohmayer,

Kampel

2023

Lecture Notes in Computer Science

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The recognition of human activities based on WiFi Channel State Information (CSI) enables contactless and visual privacy-preserving sensing in indoor environments. However, poor model generalization, due to varying environmental conditions and sensing hardware, is a well-known problem in this space. To address this issue, in this work, data augmentation techniques commonly used in image-based learning are applied to WiFi CSI to investigate their effects on model generalization performance in cross-scenario and cross-system settings. In particular, we focus on the generalization between line-of-sight (LOS) and non-line-of-sight (NLOS) through-wall scenarios, as well as on the generalization between different antenna systems, which remains under-explored. We collect and make publicly available a dataset of CSI amplitude spectrograms of human activities. Utilizing this data, an ablation study is conducted in which activity recognition models based on the EfficientNetV2 architecture are trained, allowing us to assess the effects of each augmentation on model generalization performance. The gathered results show that specific combinations of simple data augmentation techniques applied to CSI amplitude data can significantly improve cross-scenario and cross-system generalization.

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Data Augmentation Techniques for Cross-Domain WiFi CSI-Based Human Activity Recognition

Strohmayer,

Kampel

2024

IFIP Advances in Information and Communication Technology

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Parametric analysis of meandered inverted-F antenna and use of a High impedance surface based ground plane for WBAN applications

Cited by 8 publications

References 20 publications

Printed monopole UWB antenna with EBG structure for Wireless Body Area Network

Printed monopole UWB antenna with EBG structure for Wireless Body Area Network

WiFi CSI-Based Long-Range Through-Wall Human Activity Recognition with the ESP32

Data Augmentation Techniques for Cross-Domain WiFi CSI-Based Human Activity Recognition

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