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A Design and Fabrication of Rectangular Slot Antenna for UWB-BAN Applications
(2022-01-01)
Kempet, Pitak
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Watcharapupong, Akkradach
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Promwong, Sathaporn
Body area network becoming a promising technology for a rapidly growth of a wireless medical applications. The ultra-wideband technology takes a vast attention by many developers due to an impulse radio transmission system. Therefore, the ultra-wideband gain big advantage to use for a wireless body area network application. This paper aims to design and fabricate a novel wideband antenna that can operate in the high-band of the ultra-wideband technology regarding to the Japan's regulation for the ultra-wideband technology, i.e., 6.5 GHz - 11.5 GHz. A rectangular slot antenna with line slit fed by a coplanar waveguide is proposed in this paper. The antenna structure is simply made on a FR-4 Epoxy substrate with a dimension of 30 mm x 35 mm x 1.6 mm (W x L x H). The results are show as a comparison between a simulation and measurement, which clearly seen a good characteristic of the proposed antenna. Hence, the proposed antenna is good to use for the body area network applications with the ultra-wideband technology.
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A low power transmission model based UWB technology for BAN applications
(2020-07-01)
Suwan, Supakorn
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Southisombath, Khamphoui
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Promwong, Sathaporn
Low power transmission technology is ones of major concern in new wireless network (NWN) systems. The impulse radio is a potential technology to apply with body area network systems due to its transmit signal as impulse radio, which has low transmitted power. UWB gain high popular attention in short-range wireless communications development. Major kinds of application are able to used with UWB, e.g., wireless medical sensors networks, entertainment devices, and wireless localization. Information transmission in BAN systems is important for a reliable and accuracy in a actual used of medical sensors. In this research, the evaluation of UWB transmission model with human is introduce for analyze a distortion due to human body effect. The template waveform is proposed at the receiver side to achieve high level of SNR. The proposed model is very useful for the evaluation and design of wireless medical sensor networks including actual human body effect.
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Body area network transfer function measurement with frequency band from 3 GHz to 9 GHz
(2019-04-15)
Chaisang, Aditep
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Promwong, Sathaporn
Wireless technology for body area network (BAN) is significant interesting in the modern development of short range wireless communication network. Impulse characterization of ultra-wideband is important parameter that used to study in order to understand a signal propagation of BAN channel. Since the complexity of wireless human body applications are higher than another application. Anyway, it is important to understand the channel distribution characteristics due to human body effect. In this research report, transfer function of BAN channel at frequency 3-9 GHz have been presented as the characteristics of waveform transmission in case of with and without human body for apply to the development of short range wireless applications based on the measurement data of this report. To obtain the maximum value of signal to noise ratio (SNR), the matched filter was used as the optimum receiver for better signal quality and well evaluation of BAN system. The transmission equation of Friis was introduce to evaluate the measurement results in this report. The proposed method provides a higher precision and useful for the analysis and design of BAN channel to apply with the system of wireless medical system which focusing on the distortion of transmission signal.
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Distortion Analysis of the HB-UWB Transmission Waveform for WBAN Applications
(2018-07-02)
Sanguanpuak, Chanidaphar
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Bunlaksananusorn, Chanin
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Promwong, Sathaporn
The body area network (BAN) is a wireless technology, which play an important role in very short range wireless communications and find a wide variety of applications such as WiMedia for relaying information gathered by biological sensors on body. The ultra wideband (UWB) technology is suitable for BAN system because of transmission by impulse radio and low power. However, signal distortion due to human body effect in human body-ultrawide band (HB-UWB) channel must be study. In this study, we evaluate HB-UWB channel which serious disturbed by the distortion. The distortion can cause extremely poor signal quality to wireless transmission channel even in free space because of the antenna characteristics and waveform distortion. Thus, the understanding of the effect from characterization of antenna and waveform effect is important. The measurement data of distortion analysis due the antenna and human body of HB-UWB for WBAN were presented in this research report. The receiver waveform template was present to maximize system signal to noise ration. The equation of Friis had been used to evaluate the results. The proposed method is practical for the HB-UWB evaluation, UWB antenna design, and provide more precision to identify the waveform distortion. The results can apply for the design of wireless medical devices which focus on the effect of human body.
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Optimization of HB-UWB Transmission Waveform for BAN Applications
(2018-07-02)
Chaisang, Aditep
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Promwong, Sathaporn
The modern technology of wireless communications is rapidly developed and apply with short range communication networks around human body. The related research in these application has been investigating. In order to study the effect of human body in the high speed data rate technology, the patterns of ultra wideband for body area network has been studied. The measurement results have been measure and collected by vector network analyzer and analyze by using the equation of Friis. The proposed model is design for test and measure with human body in an indoor environment. The results show the usefulness information for a wireless communication for human body area network with ultra wideband.
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A study of HB-UWB transfer function model for wireless body area network
(2018-06-08)
Promsrisawat, Pichayanan
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Promwong, Sathaporn
Many research on wireless communication technologies for short range communication systems. The human body (HB) on ultra wideband (UWB) technology should be study. The wireless HB-UWB transmission waveform can be extremely distorted through a channel even for free-space transmission because of wideband antenna dispersion in HB-UWB system. Therefore, the understand of antenna characteristics with human body, which effects on waveform distortion, is necessary. This paper presents the waveform distortion due to human body in transfer function for wireless body area network (WBAN) applications based on HB-UWB measurement data. The template waveform is considered at the receiver side to maximize the signal to noise ratio (SNR) for evaluation. In this results are evaluate based on the extended Friis' transmission formula. This technique gives very accurate results and is very useful for the design and evaluation of HB-UWB transmission waveform for WBAN technology, especially focusing on the effect of template waveform and waveform distortion in HB-UWB transfer function.
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HB-UWB transmission wavefrom model for wireless body area network
(2017-02-21)
Teawchim, Sanit
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Promwong, Sathaporn
This paper are presents characteristics of human body-ultra wide band (HB-UWB) transmission model for WBAN. The human body channel is more complex and distinctive than other application. This complex and irregular shapes that cannot be analyzed as a regular Therefore, to understand human body channel is so important. The channels model is classified with body mass index (BMI). The root raise cosine passband waveform is used as UWB transmitted waveform. The body channel transfer functions on human body are measured follow IEEE802.15.6 by using vector network analyzer (VNA) at frequency 3 GHz to 5 GHz. Distortion is important parameter for UWB waveform transmission. It can be fine from path loss model, which show compared of average power loss and peak power loss. The results can be applied to use evaluation channel model on human body.
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Evaluation of HB-UWB transmission model for body area network
(2016-09-06)
Southisombath, Khamphoui
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Southisombath, Phouthong
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Promwong, Sathaporn
Body area network (BAN) is becoming an increasingly important part of the wireless communication system and short range applications. Characteristic of ultra wideband impulse radio (UWB-IR) channel propagation is very important. The human body is more complex than other applications. Therefore, to understand the characteristics of the channel distribution on the human body is so important. This paper presents characteristic of channel propagation due to effect within human body and without human body for wireless applications based on measurement data. The template waveform is considered at the receiver side to maximize the SNR for evaluation. In this paper, the results are evaluated based on the extended Friis' transmission formula. This technique gives very accurate results and is very useful for the design and evaluation of UWB transmission for wireless medical applications, especially focusing on the effect of template waveform.
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Experimental evaluation of WBAN antenna performance for FCC common frequency band with human body
(2013-08-01)
Noitubtim, Musleemin
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Deepunya, Chairak
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Promwong, Sathaporn
Wireless communication systems have become important in daily life such as wireless body area network (WBAN). An ultra-wideband (UWB) technology is chosen to be used for short-range communication scenarios, low-power and high data rate technology which accommodates appropriate technology in WBAN. In this paper, we design a printed circular monopole with coplanar waveguide (CPW) fed for WBAN with common frequency band following FCC common band (7.25-8.5 GHz). The antenna structure is simple, using FR4 circuit board (PCB) with overall size of 18 × 20 × 1.6 mm<sup>3</sup>. The simulation and experiment results show that the proposed antenna achieves good impedance matching and stable radiation patterns over operating bandwidth of 6.8-12.34 GHz. Moreover, the authors evaluate UWB antenna in two scenarios are free-space and with human-body to consider the antenna performance in time domain. © 2013 Springer Science+Business Media Dordrecht(Outside the USA).
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Performance evaluation of UWB-BAN with friis's formula and CLEAN algorithm
(2013-08-01)
Koonchiang, Krisada
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Arpasilp, Dissakan
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Promwong, Sathaporn
An ultra wideband impulse radio (UWB-IR) are developing to use in communication system and medical application because it has been an increase interest in using on body for health monitoring and body area networks (BAN). This research want to improving UWB channel propagation on body by using CLEAN algorithm for eliminate noise in channel propagation. In addition to, we use result from previous work for easier to compare performance before system. Moreover, in this paper us analysis performance of system when using CLEAN algorithm and compare without use CLEAN Algorithm by us will show BER in each position on body for analysis performance of CLEAN algorithm can be reduce noise or effect on body when without CLEAN Algorithm. © 2013 Springer Science+Business Media Dordrecht(Outside the USA).

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