Design of printed<scp>UWB</scp>antenna with<scp>CPW</scp>and<scp>microstrip‐line‐fed</scp>for<scp>DCS</scp>/<scp>PCS</scp>/bluetooth/<scp>WLAN</scp>wireless applications

Sharma, Narinder; Bhatia, Sujata K.

doi:10.1002/mmce.22488

Cited by 10 publications

(6 citation statements)

References 46 publications

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“…The proposed monopole antenna is compared with some of the most recently published works for biomedical applications in [ 2 , 3 , 4 , 5 , 6 , 7 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 ], as shown in Table 3 . The total performance of an antenna is determined by several factors, including fractional bandwidth, average gain, radiation efficiency, physical dimensions, etc.…”

Section: Discussionmentioning

confidence: 99%

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Circularly Polarized Textile Sensors for Microwave-Based Smart Bra Monitoring System

et al. 2023

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This paper presents a conformal and biodegradable circularly polarized microwave sensor (CPMS) that can be utilized in several medical applications. The proposed textile sensor can be implemented in a Smart Bra system for breast cancer detection (BCD) and a wireless body area network (WBAN). The proposed sensor is composed of a wideband circularly polarized (CP) textile-based monopole antenna with an overall size of 33.5 × 33.5 mm2 (0.2 λo × 0.2 λo) and CPW feed line. The radiating element and ground are fabricated using silver conductive fabric and stitched to a cotton substrate of thickness 2 mm. In the proposed design, a slot is etched in the radiating element to extend bandwidth from 1.8 to 8 GHz at |S11| ≤ −10 dB. It realizes a circularly polarized output with AR ≤ 3 dB operation band from 1.8 to 4 GHz and an average gain of 6 dBi. The proposed CPMS’s performance is studied both off-body (air) and on-body in proximity to breast models with and without tumors using near-field microwave imaging. Moreover, the axial ratio is recorded as a feature for a circularly polarized antenna and adds another degree of freedom for cancer detection and data analysis. It assists in detecting tumors in the breast by analyzing the magnitude of the electric field components in vertical and horizontal directions. Finally, the radiation properties are recorded, as well as the specific absorption rate (SAR), to ensure safe operation. The proposed CPMS covers a bandwidth of 1.8–8 GHz with SAR values following the 1 g and 10 g standards. The proposed work demonstrates the feasibility of using textile antennas in wearables, microwave sensing systems, and wireless body area networks (WBANs).

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Section: Discussionmentioning

confidence: 99%

“…Table 3 shows that most published textile antennas are linearly polarized [ 3 , 40 , 41 , 42 , 43 , 46 , 47 ] with limited bandwidth operation. For SAR calculations, most published textile-based sensors acquire a low SAR at low transmitted power levels.…”

Section: Discussionmentioning

confidence: 99%

Circularly Polarized Textile Sensors for Microwave-Based Smart Bra Monitoring System

et al. 2023

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“…In terms of size, bandwidth, gain, and operational frequency range, Table 2 shows the comparison results regarding the performance of the planned UHF/UWB triple-band antenna to that of the current antennas [18][19][20][29][30][31]. The results showed that the created reader antenna's uniqueness offered good impedance bandwidth and gain performance, and its applicability was demonstrated by utilizing a UHF/UWB triple-band monopole antenna incorporated into an RFID reader board.…”

Section: Comparison and Noveltymentioning

confidence: 99%

A UHF/UWB Monopole Antenna Design Process Integrated in an RFID Reader Board

Mekki

Necibi

Lakhdhar

et al. 2022

J Electromagn Eng Sci

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This paper presents a new circular monopole antenna with triple-band characteristics that can operate in both ultra-high frequency (UHF) and ultra-wideband (UWB) and can be integrated into a radio-frequency identification (RFID) system reader board. The antenna was built with a patch and a coplanar waveguide (CPW) feed microstrip line to meet the UHF/UWB bandwidth requirements for RFID applications. The designed antenna has a size of 70 mm × 60 mm × 0.8 mm. CST Microwave Studio simulations were used to validate the proposed antenna, which had a maximum gain of 4.8 dBi. Furthermore, the designed antenna had a radiation pattern that spanned the full working band. To interact with RFID tags, the antenna was built and installed into the RFID reader board. The simulation and measurement findings showed good agreement. Experiments indicated that the UHF-RFID performance of the monopole antenna was comparable to that of existing commercial solutions.

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“…Group delay parameter of UWB antenna describes the signal delay while the signal propagates from transmitter to the receiver. For computing the group delay, two identical antennas have been kept apart from each other by 30 cm in two different orientations (face to face and side by side) and can be evaluated by using the following Equation 24–26

τ goodbreak= goodbreak- \frac{italicdθ ((), ω)}{dω}

where θ is the signal phase (in Radian), and ω is the angular frequency (in Rad/sec).…”

Section: Parametric Analysis Of Antenna With Band Notch Characteristicsmentioning

confidence: 99%

“…Band stop and band pass filters are also designed to attain the desired notch characteristics, the equations used to compute the values of L and C for the band stop filters are 26 :

L_{1} goodbreak= \frac{R_{o} ((), f_{c 2} goodbreak- f_{c 1})}{π f_{c 1} . f_{c 2}}, C_{1} goodbreak= \frac{1}{4 π R_{o} ((), f_{c 2} goodbreak- f_{c 1})}

L_{2} goodbreak= \frac{R_{o}}{4 π ((), f_{c 2} goodbreak- f_{c 1})}, C_{2} goodbreak= \frac{f_{c 2} - f_{c 1}}{π R_{o} f_{c 1} . f_{c 2}}

The equations used to evaluate the L and C values of band pass filters are:

L_{1}^{'} goodbreak= \frac{R_{o}}{π ((), f_{c 2} goodbreak- f_{c 1})}, C_{1}^{'} goodbreak= \frac{f_{c 2} - f_{c 1}}{4 π R_{o} f_{c 1} . f_{c 2}}

L_{2}^{'} goodbreak= \frac{R_{o} ((), f_{c 2} goodbreak- f_{c 1})}{4 π f_{c 1} . f_{c 2}}, C_{2}^{'} goodbreak= \frac{1}{π R_{o} ((), f_{c 2} goodbreak- f_{c 1})}

…”

Section: Parametric Analysis Of Antenna With Band Notch Characteristicsmentioning

confidence: 99%

Sprocket gear wheel shaped printed monopole ultra‐wideband antenna with band notch characteristics: Design and measurement

Kaur

Kumar

Sharma

2021

Int J RF Mic Comp-Aid Eng

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A compact ultra‐wideband (UWB) printed monopole UWB with dual band‐notched characteristics has been designed and investigated in this manuscript. The Wi‐MAX and wireless local area network (WLAN) band rejection characteristics have been obtained by employing the circular ring and arc‐shaped slot along with rectangular slot in radiating patch. Overall size of proposed UWB antenna is 27 × 27 × 1.6 mm3, which consists of sprocket gear wheel shaped structure as a core radiating patch element and excited by using 50 Ω coplanar waveguide feed. The proposed antenna exhibits the UWB frequency spectrum from 3.1 to 10.6 GHz along with Bluetooth frequency range 2.4–2.48 GHz without disturbing overall dimensions of antenna. Proposed antenna reveals the measured VSWR operating bandwidth of 10.0 GHz in the frequency range from 2.0 to 12.0 GHz along with Wi‐MAX and WLAN rejected bands. Moreover, proposed antenna adorns the measured gain of −8.28 and − 9.98 dBi at rejected frequency bands, whereas, at other frequencies, it changes between 1.5 and 5.0 dBi. The radiation efficiency of proposed UWB antenna varies from 84% to 97% except rejected frequency bands. Group delay and radiation pattern have also been analyzed and found appropriate for the current UWB applications. Finally, the optimized structure of antenna with dual band rejection characteristics has been fabricated and tested for the authentication of simulated results. Both the results are compared and are found in good agreement with each other.

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Design of printedUWBantenna withCPWandmicrostrip‐line‐fedforDCS/PCS/bluetooth/WLANwireless applications

Cited by 10 publications

References 46 publications

Circularly Polarized Textile Sensors for Microwave-Based Smart Bra Monitoring System

Circularly Polarized Textile Sensors for Microwave-Based Smart Bra Monitoring System

A UHF/UWB Monopole Antenna Design Process Integrated in an RFID Reader Board

Sprocket gear wheel shaped printed monopole ultra‐wideband antenna with band notch characteristics: Design and measurement

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