Compact RFID Enabled Moisture Sensor

Khan, Muhammad Umar; Aslam, Bilal; Azam, Muhammad Awais; Amin, Yasar; Tenhunen, Hannu

doi:10.13164/re.2016.0449

Cited by 3 publications

(3 citation statements)

References 29 publications

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“…The journey of microstrip antenna starts after deciding its fixed parameters. Transmission line parameters can be found using following equations mentioned in [22].…”

Section: Design Methodologymentioning

confidence: 99%

Dual Band Microstrip Semicircular Slot Patch Antenna for WLAN and WIMAX Applications

Mushtaq¹,

Shah²,

Munir³

et al. 2022

RADIOENGINEERING

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A dual band microstrip antenna for WIMAX and WLAN applications is analyzed and presented in this paper. The proposed antenna has semicircular slot in patch and Defected Ground Structure (DGS) technique for the improvement of its bandwidth and gain. Computer Simulation Technology (CST) software is used to design and simulate the performance characteristics. The proposed antenna has the dimensions as 28 × 26.6 𝑚𝑚 2 . The fabricated antenna provides a good reflection coefficient of -48 dB and -44.5 dB at a center frequency of 3.4 GHz and 5.5 GHz. Gain achieved by the antenna is 2.72 dB and 3.87 dB for WLAN and WIMAX application. Good agreements have been found between simulated and measured results. These results confirm that the fabricated antenna is very promising for WLAN and WIMAX applications.

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“…The journey of microstrip antenna starts after deciding its fixed parameters. Transmission line parameters can be found using following equations mentioned in [22].…”

Section: Design Methodologymentioning

confidence: 99%

Dual Band Microstrip Semicircular Slot Patch Antenna for WLAN and WIMAX Applications

Mushtaq¹,

Shah²,

Munir³

et al. 2022

RADIOENGINEERING

Self Cite

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“…At present, there are several approaches to sense physical changes inside and around the material adopting microwaves energy. Those approaches range from deformed waveguides [14], antennas receiving signal across the changing space [15], RFID systems [16] and related methods. Some work in this field was presented but most of devices are either too complex to be manufactured or only a single-purpose operation is provided.…”

Section: Introductionmentioning

confidence: 99%

Pressure and humidity detector based on textile integrated waveguide

Kokolia

Raida

2022

Journal of Electrical Engineering

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In the paper, a pressure sensor and a humidity sensor are designed as supplementary components of a textile integrated waveguide (TIW) based on an artificial magnetic conductor (AMC) consisting of hexagonal elements. Thanks to AMC, sewing of electrically conductive side walls can be eliminated. Since operating in the stop-band of TIW, the sensors do not influence transmission parameters of TIW, and provide an additional functionality. For fabrication, a three-dimensional knitted fabric was used as a substrate and conductive surfaces were created from a self-adhesive copper foil. The sensors were simulated, manufactured and measured in the frequency range from 10 GHz to 12 GHz with a reasonable agreement. Since the designed components are sensitive on manufacturing tolerances, a higher measured insertion loss in TIW can be observed compared to simulations. Nevertheless, the insertion loss can be reduced when manufacturing accuracy is improved.

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“…Internet of things (IoT) is a combination of number of smart objects, connected via wired/wireless networks to the internet [1][2][3][4][5]. RFID and wireless sensor networks (WSN) are major entities of IoT system.…”

Section: Introductionmentioning

confidence: 99%

Directly Printable Frequency Signature Chipless RFID Tag for IoT Applications

Anam¹,

Habib²,

Jafri³

et al. 2017

RADIOENGINEERING

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This paper proposes a low-cost, compact, flexible passive chipless RFID tag that has been designed and analyzed. The tag is a bowtie-shaped resonator based structure with 36 slots; where each patch is loaded with 18 slots. The tag is set in a way that each slot in a patch corresponds to a metal gap in the other patch. Hence there is no mutual interference, and high data capacity of 36 bits is achieved in such compact size. Each slot corresponds to a resonance frequency in the RCS curve, and each resonance corresponds to a bit. The tag has been realized for Taconic TLX-0, PET, and Kapton ® HN (DuPont TM ) substrates with copper, aluminum, and silver nanoparticlebased ink (Cabot CCI-300) as conducting materials. The tag exhibits flexibility and well optimized while remaining in a compact size. The proposed tag yields 36 bits in a tag dimension of 24.5  25.5 mm 2 . These 36 bits can tag 2 36 number of objects/items. The ultimate high capacity, compact size, flexible passive chipless RFID tag can be arrayed in various industrial and IoT-based applications.

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Compact RFID Enabled Moisture Sensor

Abstract: Abstract. This research proposes a novel, low-cost RFID

Cited by 3 publications

References 29 publications

Dual Band Microstrip Semicircular Slot Patch Antenna for WLAN and WIMAX Applications

Dual Band Microstrip Semicircular Slot Patch Antenna for WLAN and WIMAX Applications

Pressure and humidity detector based on textile integrated waveguide

Directly Printable Frequency Signature Chipless RFID Tag for IoT Applications

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