Ultra-wideband, zero visual signature RF vest antenna for man-portable radios

Lebaric, J.; Adler, Richard W.; Limbert, M.E.

doi:10.1109/milcom.2001.986063

Cited by 12 publications

(6 citation statements)

References 2 publications

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“…To detect the hit in Real-Time target hit from the shouter, the automatic hit detection system will be inserted a technique that is reported in the research at Naval Surface Warfare Center (NSWC) [12,13]. The remote module consists of sensor devices, controllers, and communication.…”

Section: Print Issn 1727-6209 On-line Issn 2312-5381mentioning

confidence: 99%

Smart Vest and Monitoring System for Airsoft Sport-Games Using Vibration Sensor

Mutiara¹,

Periyadi²,

Agnas³

et al. 2020

IJC

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Airsoft gun is a replica of weapons used for airsoft sports-games activities. These sport-games are usually equipped with ball bullet type, vest protector, helmet and sunglasses. Rules of the game are defined by prioritizing the honesty of each player if hit by a shot. This becomes a weakness and is misused by the player. To reduce these two impacts, this paper proposed an innovation by developing vest that can detect laser light and the bullet. Those hits then connected to the database and also monitoring system. This system is constructed using Light Dependent Resistor, Raspberry Pi 3, motor vibration sensor, piezoelectric, LED lamp, and buzzer. By utilizing the MAC Address of Raspberry Pi 3, the player can be recognized and the counter of the remaining lives of the player will be displayed. The player’s life can be determined by a shoot, if point 25 is set for one shoot, then the player declares the game is over after four hits. Based on the testing results, this research can help to do these sport-games informative, efficient and fairly.

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Section: Print Issn 1727-6209 On-line Issn 2312-5381mentioning

confidence: 99%

Smart Vest and Monitoring System for Airsoft Sport-Games Using Vibration Sensor

Mutiara¹,

Periyadi²,

Agnas³

et al. 2020

IJC

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“…The COMbat Wear INtegration (COMWIN) antenna system has been developed for the man-portable implementation of the ultra-wideband Joint Tactical Radio System (JTRS), by researchers at the SPAWAR Systems Center, San Diego, CA, in association with the Naval Postgraduate School in Monterey, CA [153]- [158]. The COMWIN system consists of three antennas to guarantee a 2MHz-2000MHz frequency coverage: 1) a whole-body antenna in the form of flak jacket, pants and shoes, which is able to receive at any frequency from 2 to 30 MHz (a feed is located on the back of the flak jacket, with two arms that go down the sides of the soldier; the pants have metal stripes down the sides and the shoes have metal insoles to couple the signal to the ground); 2) a vest antenna covering the band from 30MHz to 500MHz; 3) a helmet-mounted antenna operating in the 500-2000MHz band.…”

Section: B Multi-antenna Systems For Wideband Coveragementioning

confidence: 99%

“…Another version of the helmet antenna, with the gap thickness that changes from a minimum of 0.5cm to a maximum of 8.5cm (at the top of the helmet), achieves a larger bandwidth (300-3000MHz). The COMWIN vest antenna [154], [157]- [158] can be considered as a horizontal slot realized into a conducting vertical cylinder of finite length, all around the wearer's body. It was made out of Flectron, which is a mixture of copper interwoven with polyester to form a high conductivity fabric.…”

Section: B Multi-antenna Systems For Wideband Coveragementioning

confidence: 99%

Wearable Antennas for Off-Body Radio Links at VHF and UHF Bands: Challenges, the state of the art, and future trends below 1 GHz

Nepa

Rogier

2015

IEEE Antennas Propag. Mag.

108

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Abstract-An in-depth survey of wearable antennas for offbody radio links in the VHF and UHF frequency bands (below 1 GHz) is presented. The review encompasses distinctive specifications, design criteria and challenges, material characterization procedures, antenna topologies and technologies, multi-antenna systems, dedicated testing procedures, applications and future trends.Index Terms-Wearable antennas, body-worn antennas, textile antennas, embroidered antennas, VHF antennas, UHF antennas, antennas for body-centric communications, antennas for body area networks, antennas for personal area networks, antennas for off-body wireless communications. I. INTRODUCTIONhere are several existing and forthcoming wireless applications that either require or can benefit from one or more antennas that are directly stitched on a piece of clothing or a garment, or integrated into a personal accessory (such as shoes, glasses, buttons, helmets). These antennas are usually referred to as body-worn antennas, textile antennas, BAN (Body Area Network) antennas, antennas for body-centric communications, wearable antennas. The last term is the one that is going to be used in this paper, as it denotes any antenna that is small and light enough to be worn or carried on one's body.In the last decades, hundreds of scientific papers on wearable antennas have been published in the open literature [1]- [8]. Therefore, for the sake of completeness and clarity, a valuable analysis of the state-of-the-art on wearable antennas should be limited to antennas for a specific application, a given frequency range, or a chosen antenna technology. In this context, the present review focuses on wearable antennas operating in the VHF band and part of the UHF frequency band (below 1 GHz). Choosing 1 GHz as an upper boundary for this review is highly relevant, as the operating frequency is usually the main parameter to discriminate among available antenna topologies, technologies and characterization techniques. Moreover, we limit our discussion on antennas for off-body radio links, also excluding antennas integrated into mobile terminals/cases and operating close to the body. Specifically, only wearable antennas that can be used separately from the radio unit are of interest here.VHF/UHF wearable antennas are mostly used in professional mobile radio communications for soldiers, emergency operators and law-enforcement personnel. VHF As far as VHF/UHF wearable antennas are concerned, many of their distinctive features are related to the fact that the corresponding free-space wavelength (with 30cm<<10m when 30MHz

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“…Although wearable antennas suffer performance distortion when applied to human body, this field is still widely explored by researchers. One of the most researched wearable antenna types is the wearable fabric based antenna [13][14][15][16][17][18], initially designed in the form of a helmet [19] as well as a vest [20,21], and since then, it is always meant to be a part of clothing. In general, fabrics have low dielectric constant, hence this property helps in getting a wide bandwidth from the antenna.…”

Section: Introductionmentioning

confidence: 99%

Textile Artificial Magnetic Conductor Waveguide Jacket for on-Body Transmission Enhancement

Kamardin¹,

Rahim²,

Samsuri³

et al. 2013

PIER B

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Abstract-Diamond dipole antennas with textile Artificial Magnetic Conductor (AMC) sheet-like waveguide were designed to investigate the possibility of improving transmission between antennas. Fleece fabric is used as the substrate of the textile AMC while SHIELDIT fabric is used as the conductive patches and ground plane. The AMC surface is designed to resonate at 2.45 GHz with the goal to enhance the transmission between antennas. A small textile AMC waveguide sheet as well as an AMC waveguide jacket were fabricated. The S-parameters performance of the two antennas with textile AMC sheet was investigated in a free space environment and near to human body setting. The effect of different antennas' orientations was also considered. Measurements were conducted thoroughly to validate the simulated findings. Compared to free space environment, S 21 transmission between two dipoles is improved up to maximum −10 dB when having textile AMC waveguide sheet beneath them. For both off-body and on-body placements, significant transmission enhancement has been observed with the introduction of the AMC sheet-like waveguide. Directive radiation patterns with high gain have also been achieved with the proposed AMC waveguide jacket.

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Ultra-wideband, zero visual signature RF vest antenna for man-portable radios

Abstract: This paper presents the recent research of the COMbat

Cited by 12 publications

References 2 publications

Smart Vest and Monitoring System for Airsoft Sport-Games Using Vibration Sensor

Smart Vest and Monitoring System for Airsoft Sport-Games Using Vibration Sensor

Wearable Antennas for Off-Body Radio Links at VHF and UHF Bands: Challenges, the state of the art, and future trends below 1 GHz

Textile Artificial Magnetic Conductor Waveguide Jacket for on-Body Transmission Enhancement

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