Low‐profile dipole antenna with parasitic elements for WBAN applications

Kang, Do Gu; Tak, Jinpil; Choi, Jaehoon

doi:10.1002/mop.29749

Cited by 11 publications

(9 citation statements)

References 13 publications

(12 reference statements)

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“…1(a), 1(b). The halfmode field distribution is achieved, when circular SIW cavity is bisected along the wall A-A [16], and the resonant frequency shifts downward at 6.24 GHz [3] . It can be observed from Fig.…”

Section: Antenna Design Methodologymentioning

confidence: 99%

“…The essential requirements of on-body antennas are compact size, low profile and low sensitivity to the surrounding medium. On-body antennas have been widely implemented with the conventional microstrip patch technology [3]. However, these antennas suffer from the problems of frequency detuning, deterioration in efficiency, gain and radiation pattern in the proximity to the human body due to poor isolation from the surrounding [4].…”

Section: Introductionmentioning

confidence: 99%

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Compact Qmsiw Based Antennas for Wlan/Wban Applications

Chaturvedi¹,

Raghavan²

2018

PIER C

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In this paper, two compact planar substrate integrated waveguide (SIW) cavity-backed antennas are proposed for wireless local area network (WLAN) at 5.5 GHz and wireless body area network (WBAN) at 5.8 GHz. The miniaturization is achieved with the concept of quarter-modetopology, and the size of the cavity is reduced up to one-fourth of the circular SIW cavity. A L-shaped slot is etched on the top plane for miniaturization, and antenna-1 is realized which resonates at 5.5 GHz. A metal strip has been added in the middle section of the slot, and antenna-2 is realized, which resonates at 5.8 GHz. Both proposed antennas are tested in free space, while the performance of antenna-2 is investigated for on-body condition. In free space, the measured impedance bandwidths of the antenna are 160 MHz and 210 MHz at 5.5 GHz and 5.8 GHz, respectively. The radiation efficiency of the antenna is 89.4% in free space and 57% on phantom at 5.8 GHz. Both measured and simulated results are observed, and they are in a good agreement.

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Section: Antenna Design Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compact Qmsiw Based Antennas for Wlan/Wban Applications

Chaturvedi¹,

Raghavan²

2018

PIER C

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show abstract

“…To meet the multi‐standard wireless requirement using a single radiator, broadbanding techniques are required to overcome the narrowband characteristics of the proposed microstrip‐based antenna . Several techniques are efficiently combined in this work to achieve the wideband requirements, which includes increasing substrate thickness, overlapping multiple resonances, the addition of slots, parasitic patches, and stepped‐notch structures . This process is performed systematically, and is explained as follows: Firstly, two layers of felt substrate is used instead of one, resulting in an overall thickness of 6 mm …”

Section: Materials and Antenna Designmentioning

confidence: 99%

Wideband microstrip‐based wearable antenna backed with full ground plane

Hussin

Soh

Jamlos

et al. 2019

Int J RF Microw Comput Aided Eng

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A wideband microstrip-based wearable antenna with a fractional bandwidth of 51% is designed using textile materials for wearable applications. The antenna operates between 2 and 3 GHz with low back-radiation to ensure minimum coupling to the body and reduced electromagnetic power absorption in the human tissue. The behavior microstrip antenna topology, which is narrowband in nature, is altered via the combinations of various broadbanding techniques, while maintaining the existence of the full ground plane backing. This ensures that the antenna radiation is directed outward form the body to efficiently propagate wireless signals toward other off-body nodes and base stations. Simulation and measurement results indicated that the use of this microstrip topology with multiple broadbanding techniques is capable of reducing the back lobe, resulting in a front-to-back ratio of about 17 dB and a 3.5 dBi of average gain. K E Y W O R D S broadbanding techniques, directional antenna, textile antenna, wideband antenna

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“…Nowadays, dipole antennas have been widely used as they offer simple structure, low cost, and high efficiency . There are numerous research works about using parasitic elements to improve the performance of dipole antennas, such as high antenna gain or widen impedance bandwidth . The well‐known is Yagi antenna array .…”

Section: Introductionmentioning

confidence: 99%

Dipole filtering antenna with quasi‐elliptic peak gain response using parasitic elements

Niu

Tan

2019

Micro & Optical Tech Letters

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A dipole filtering antenna with a quasi-elliptic peak gain frequency response is proposed. It consists of a driven dipole, a parasitic resonator and a parasitic meandered resonator with the same resonant length. By introducing these two parasitic elements, the proposed antenna has two reflection zeros in the passband and two radiation nulls in the stopbands. An antenna prototype centering at 1.85 GHz is fabricated. Measured peak gain and radiation efficiency achieve minimum values of −7.95 dBi and 4.23% at 1.73 GHz and −4.17 dBi and 7.78% at 1.92 GHz, respectively. The roll-off factor of peak gain is 182.52 dB/GHz at the lower sideband and 281.27 dB/GHz at the upper sideband, respectively. Measured results verify the effectiveness of the proposed design. Compared to conventional dipole antennas, the proposed antenna achieves widen impedance bandwidth as well as filtering frequency performance such as flat passband gain, steep sideband selectivity and high stopband suppression. K E Y W O R D S antenna gain, dipole antenna, filtering antenna, parasitic element, quasielliptic response

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Low‐profile dipole antenna with parasitic elements for WBAN applications

Cited by 11 publications

References 13 publications

Compact Qmsiw Based Antennas for Wlan/Wban Applications

Compact Qmsiw Based Antennas for Wlan/Wban Applications

Wideband microstrip‐based wearable antenna backed with full ground plane

Dipole filtering antenna with quasi‐elliptic peak gain response using parasitic elements

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