Bandwidth-Enhanced Cavity-Backed Magneto-Electric Dipole Antenna

Chang, Lei; Zhang, Jianqiang; Chen, Ling‐Lu; Li, Baoming

doi:10.1109/access.2018.2876760

Cited by 15 publications

(12 citation statements)

References 29 publications

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“…Plane dipole antenna has been widely adopted as a feed source into complex antenna structures owning to its advantages of low profile, light weight, easy fabrication, and nearly omnidirectional radiation pattern [6], [7], [17]- [19]. In this work, four kinds of multi-beam antennas are composed by the dipole antenna and different parasitic elements.…”

Section: The Design Of a Graphene-based Thz Dipole Antennamentioning

confidence: 99%

Graphene-Based Multi-Beam Reconfigurable THz Antennas

et al. 2019

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Several configurations of multi-beam reconfigurable THz antennas based on graphene have been investigated. Two modulation mechanisms of graphene-based THz antenna are introduced, one is the reflector-transmission window model, and the other is the reflector-director model (Yagi-Uda antenna). The main parameters, such as main beam direction, resonance frequency, peak gain, and the front-to-back ratio of the proposed antenna can be controlled by adjusting the chemical potentials of the graphene in the antenna. Moreover, this paper provides an easy way to obtain complex graphene-based multi-beam antennas, showing strong potential in the design of other complex graphene-based systems, enabling nanoscale wireless communications and sensing devices for different applications. INDEX TERMS Graphene, multi-beam, reconfigurable, THz antenna.

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Section: The Design Of a Graphene-based Thz Dipole Antennamentioning

confidence: 99%

Graphene-Based Multi-Beam Reconfigurable THz Antennas

et al. 2019

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“…Magnetoelectric (ME) dipole antennas have been widely studied since its introduction by K. M. Luk in 2006 [ 3 ]; by combining and exciting a magnetic dipole and an electric dipole together, the complementary antennas show good electrical characteristics, including wide impedance bandwidth (BW) of 47%, stable gain of about 8 dBi, low back radiation, low cross-polarization, and symmetrical E- and H- plane radiation patterns. In the last decade, several improved designs have been presented where efforts were made to increase the BW by modifying the shape of the dipoles [ 4 ], using parasitic elements [ 5 ] or specific cavities [ 6 ] and defected ground structures (DGS) [ 7 ]. However, these designs have an obvious drawback that the large antenna height is about one-quarter wavelengths, which is inappropriate to some practical applications.…”

Section: Introductionmentioning

confidence: 99%

“…Cavity-backed magneto electric antennas have also been developed for some specific applications such as communication systems, outdoor applications, satellite communications, or radar applications [ 6 , 15 , 16 , 17 ], providing equivalent impedance BW and good radiation properties with cavity sizes of approximately

at center frequency. Reducing the cavity size drastically affects the BW of the antenna.…”

Section: Introductionmentioning

confidence: 99%

Compact Bandwidth Enhanced Cavity-Backed Magneto-Electric Dipole Antenna with Outer Γ-Shaped Probe for GNSS Bands

Causse

Rodriguez

Bernard

et al. 2021

Sensors

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In this paper, a wideband small cavity-backed magneto-electric (ME) antenna is proposed. This antenna is linearly polarized and designed to cover all the Global Navigation Satellite System (GNSS) bands. It exhibits small external dimensions of 90 × 90 × 40 mm3 (0.34 × 0.34 × 0.15 λ3 at lowest frequency) and achieves a wide impedance bandwidth of 40.5% (from 1.14 to 1.72 GHz) due to the excitation of a third resonance of the ME structure. It also provides a regular broadside gain of 5.2 dBi and stable radiation pattern in both E and H planes of the antenna.

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“…Recently, a bandwidth-enhanced cavity-backed magnetoelectric dipole achieved a broad bandwidth of 88% for a S 11 ≤ −15 dB. However, the antenna had a large ground plane coupled with a high profile of 0.36λ o [32]. A compact magneto-electric dipole for the LTE femtocell base station was proposed to achieve a bandwidth of 65.7% for a S 11 ≤ −10 dB, but its profile of 0.20λ o is an impediment in extremely low-profile applications [34].…”

Section: Introductionmentioning

confidence: 99%

Wideband Low-Profile Printed Dipole Antenna Incorporated With Folded Strips and Corner-Cut Parasitic Patches Above the Ground Plane

Kedze

Wang

2019

IEEE Access

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In this paper, the design of a wideband high-gain low-profile linearly polarized antenna is presented. The design objectives were achieved by encircling a folded strip around a planar radiating element on the top substrate with corner-cut parasitic patches on the bottom substrate placed above the ground plane. A half-wavelength printed dipole utilized as a radiating element was employed to generate linearly polarized radiation. The contributions of the folded strips and parasitic patches are significant factors in enhancing the bandwidth by producing extra resonance and phase compensation. The experiments and full-wave electromagnetic simulations have provided a platform for the analysis, validation, and verification of the antenna design. The antenna structure has the overall dimensions of 120 mm × 120 mm × 16.3 mm (0.69λ o × 0.69λ o × 0.094λ o at 1.74 GHz), and it demonstrated satisfactory measured performance characteristics with a −10-dB impedance bandwidth of 1.39-2.09 GHz (40.22%), a broadside gain of 6.1-8.2 dBi, and a radiation efficiency >88% within the impedance bandwidth. INDEX TERMS Folded strip, low-profile antenna, parasitic patch, planar antenna, printed dipole, wideband.

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Bandwidth-Enhanced Cavity-Backed Magneto-Electric Dipole Antenna

Cited by 15 publications

References 29 publications

Graphene-Based Multi-Beam Reconfigurable THz Antennas

Graphene-Based Multi-Beam Reconfigurable THz Antennas

Compact Bandwidth Enhanced Cavity-Backed Magneto-Electric Dipole Antenna with Outer Γ-Shaped Probe for GNSS Bands

Wideband Low-Profile Printed Dipole Antenna Incorporated With Folded Strips and Corner-Cut Parasitic Patches Above the Ground Plane

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