High-gain bidirectional MDAS antenna design excited by stacked-microstrip dipole

Batgerel, Ariunzaya; Choi, Jin Young; Eom, Soon-Young

doi:10.1080/09205071.2012.700891

Cited by 11 publications

(5 citation statements)

References 2 publications

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“…Most previous dual-polarized antennas were designed to achieve only unidirectional radiation [5,6], while most previous bidirectional antennas were single polarization [12][13][14]. In this paper, the proposed stacked antenna can achieve both dual-polarization and bidirectional radiation characteristics.…”

Section: Introductionmentioning

confidence: 99%

“…For some specific services where the mobile users move along the straight roads such as highways, railways and tunnels, bidirectional antennas are especially preferred to be used in order to maximize the link efficiency [7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…Researchers also proposed some compact planar bidirectional antennas, while the gain was limited by the substrate [8,9]. In recent years, multilayered disk array structure (MDAS) or stacked director structure has been frequently adopted along the propagating direction to achieve unidirectional [5,6] or bidirectional radiation [12][13][14]. In this article, the stacked director array along two radiation directions is adopted in the proposed antenna for bidirectional radiation.…”

Section: Introductionmentioning

confidence: 99%

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A Compact Stacked Bidirectional Antenna for Dual-Polarized Wlan Applications

Jia¹,

Li²

2013

PIER C

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A compact stacked bidirectional antenna is presented for dual-polarized 2.4 GHz WLAN applications in this paper. The antenna consists of an orthogonal coupling feed driver and stacked director array, with the overall size 50 × 50 × 160 mm 3 . Dual-polarization is excited by the orthogonal coupling lines, and the director array contributes to the bidirectional radiation. Both the coupling feed driver and directors are printed on FR4 substrate and supported by plastic pillars. The measured bandwidth of the two ports are 2.33-2.62 GHz (11.8%) and 2.32-2.64 GHz (13%) under the condition of VSWR less than 2. The isolation between two ports is lower than −20 dB. The peak gains along one radiation direction are 9.65 dBi and 9.30 dBi for each port, with highly symmetric bidirectional beam pattern. The proposed antenna is compact and suitable for dualpolarized bidirectional 2.4 GHz WLAN applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Compact Stacked Bidirectional Antenna for Dual-Polarized Wlan Applications

Jia¹,

Li²

2013

PIER C

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“…As modern-day wireless communication devices become increasingly small and light, the demand for compact planar antenna designs is high. In low-path-loss communication channels, such as mines, bridges, tunnels, roadways, and city corridors, a bi-directional radiation pattern can provide higher signal strengths and improved data rates [1][2][3][4][5][6][7]. Bi-directional patterns are typically achieved using antenna arrays, which can provide high gains but require larger footprints [8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Compact Negative-Permittivity Microstrip Patch Antenna for End-Fire Radiation

Ahmadi¹,

Veidt²,

Markley³

2022

PIER C

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We propose a compact microstrip patch antenna that uses a negative permittivity substrate to achieve an end-fire radiation pattern. The antenna is designed to operate at X-band frequencies with a patch footprint of 0.9λ × 0.05λ and a thickness of λ/20. We show that loading a narrow patch with a negative permittivity substrate introduces an effective shunt inductance that resonates with the strong fringing capacitance of the patch. At resonance, the electric field is vertically polarized and approximately uniform across the patch, producing transverse nulls that improve the directivity of the antenna. The negative permittivity substrate is implemented using a thin-wire effective medium with four vias spread across the patch. The antenna is matched to 50 Ω using a quarter-wavelength transformer. The fabricated antenna operates at 10.8 GHz with a peak return loss of 30 dB and a bidirectional directivity of 10.7 dBi. The antenna has a 10-dB impedance bandwidth of 3.8% and radiates with a simulated efficiency of 93%.

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“…For particular services where users move in a straight path like highways, tunnels and railways bidirectional antennas are more useful to maximize the link efficiency [29,30]. In [31], two unidirectional antennas in the opposite direction have been used for bidirectional radiation pattern; however, the design was complicated and directivity was also low. A bidirectional radiation pattern has also been achieved with antennas having more than one feeding mechanism [32].…”

Section: Introductionmentioning

confidence: 99%

Bidirectional CPW Fed Quad-Band DRA for WLAN/WiMAX Applications

Iqbal

Owais

Kaabar

et al. 2022

Wireless Communications and Mobile Computing

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Due to the size constraint, antennas with compact size are required that can support multibands with single radiating element. Dielectric resonator antenna (DRA) can support multiple modes with good efficiency and gain using single radiating element. In this paper, a quad-band DRA is proposed for WLAN/WiMAX bands using a single CPW feed. Out of four bands, WLAN (2.37-2.55) GHz, (5.15-5.35) GHz, and (5.6-5.83) GHz are achieved by the excitation of fundamental and higher-order modes whereas WiMAX (3.58-3.72) GHz band is achieved by dielectric loading of the DR. Dielectric loading makes it possible to operate the antenna at desired frequency band. Due to the partial ground plane and single coplanar waveguide (CPW) feed radiation pattern of the proposed antenna is bidirectional. The design is efficient in terms of radiation efficiency. Simulated and measured results show that it can be a suitable candidate for WLAN and WiMAX applications.

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High-gain bidirectional MDAS antenna design excited by stacked-microstrip dipole

Cited by 11 publications

References 2 publications

A Compact Stacked Bidirectional Antenna for Dual-Polarized Wlan Applications

A Compact Stacked Bidirectional Antenna for Dual-Polarized Wlan Applications

Compact Negative-Permittivity Microstrip Patch Antenna for End-Fire Radiation

Bidirectional CPW Fed Quad-Band DRA for WLAN/WiMAX Applications

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