Radiation of printed antennas with a coplanar waveguide feed

Liu, Huan-Chang; Tzyy-Sheng, Horng; Alexopoulos, N.G.

doi:10.1109/8.467652

Cited by 48 publications

(3 citation statements)

References 10 publications

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“…The combination of a CPW feed line, a fractal patch, and a vertical strip excites the antenna. The CPW feed line provides wider bandwidth, better impedance matching possibilities, and easier fabrication 28 . The feed line is designed for 50 Ω (feed width, w f = 1.28 mm, and the gap between the ground plane and the center stripline, g f = 0.3 mm).…”

Section: Antenna Configuration and Designmentioning

confidence: 99%

“…The CPW feed line provides wider bandwidth, better impedance matching possibilities, and easier fabrication. 28 The feed line is designed for 50 Ω (feed width, w f = 1.28 mm, and the gap between the ground plane and the center stripline, g f = 0.3 mm). The rectangular dielectric resonator (RDR) is made up of alumina material (relative permittivity, ε r, DR = 9.8 and tanδ = 0.02) mounted on top of a fractal patch at the end of the center feed line.…”

Section: Antenna Configuration and Designmentioning

confidence: 99%

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Ultra wideband (UWB) dielectric resonator antenna using fractal‐inspired feeding mechanism

Huda¹,

Saha

Karmakar

2023

Int J Communication

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Summary This article examines a compact dielectric resonator antenna (DRA) for UWB applications. Here a composite feeding structure excites a dielectric resonator which in tern provides the resonant modes TE111, TE121, TE212, and TE222. The dielectric resonator (DR), built of alumina ceramic (εr, DR = 9.8), is mounted on a fractal triangular patch, inspired by Sierpinski Gasket. The suggested DRA is supported by a FR4 substrate (εr, sub = 4.4) and measures compactly 40 × 30 × 8.5 mm3. To confirm the results of its simulations, the proposed antenna's prototype is prepared and measured up to the second iteration. The measured outcome demonstrates that the suggested antenna has a frequency range of 3.38–10.71 GHz (104%) for S11 < −10 dB and provides a maximum gain of 7.23 dBi at 8 GHz along with highest possible simulated efficiency of 98%. The suggested DRA is appropriate for small‐range future 4G/5G UWB wireless multimedia applications due to its ultrawide bandwidth, excellent gain, reasonable efficiency, omnidirectional radiation features, and compact construction. This DRA is also suitable for repeaters of mobile and vehicular communications.

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Section: Antenna Configuration and Designmentioning

confidence: 99%

Section: Antenna Configuration and Designmentioning

confidence: 99%

Ultra wideband (UWB) dielectric resonator antenna using fractal‐inspired feeding mechanism

Huda¹,

Saha

Karmakar

2023

Int J Communication

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“…The aforementioned challenges can be addressed using patch antenna designs because they have a low profile and are lightweight and cheap. In addition, they have low radiation loss, easy matching of input impedance and are easily integrated with electronic devices [4]. However, their main limitation is their narrow bandwidth, low gains and low efficiency at S-band, i.e., 2.40 GHz [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

A Wideband Metal-Only Patch Antenna for CubeSat

et al. 2020

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This article presents a compact wideband high gain patch antenna for CubeSat. The proposed metal-only antenna mainly consists of an upper patch, a folded ramp-shaped patch and shoring pins connecting the antenna with the ground plane. By adjusting the lengths and widths of two arms of the upper F-shaped patch, a second resonant frequency is generated, and hence, the −10 dB bandwidth is increased. Moreover, the effect of arms’ lengths and widths on reflection coefficients, operating frequency and bandwidth is presented. To validate the design and the simulation results, a prototype metal-only patch antenna was fabricated and tested in a Chamber. A good agreement between the simulated and measured results is achieved. The measured results show that the fabricated prototype achieves a −10 dB bandwidth of 44.9% (1.6–2.7 GHz), a small reflection coefficient of −24.4 dB and a high efficiency, i.e., 85% at 2.45 GHz. The radiation performance of the proposed antenna is measured, showing a peak realized gain of 8.5 dBi with cross polarization level less than −20 dB at 2.45 GHz and a 3 dB gain bandwidth of 61.22%.

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Radiation efficiency and impedance bandwidth of conductor‐backed CPW‐FED slot dipole antenna with two‐layered dielectric substrate

Jacobs

Joubert

Odendaal

2002

Micro & Optical Tech Letters

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Besides, it should be noted that in FEM-PML approach, the computational domain includes the scatterer, the PML and the buffer space between them, while in the FEM-MoL method, it only consists of the dielectric area and the boundary of the scatterer. Therefore, the number of unknowns in the FEM-MoL method is considerably reduced. CONCLUSIONSA hybrid FEM-MoL approach is proposed as an alternative for 2D scattering problems. This method combines the flexibility of numerical FEM for bounded inhomogeneous region and the effective and accurate semianalytical MoL for irregular but homogeneous layers and the unbounded free space, making it very suitable for dielectric coated scatters or general unbounded 2D scattering problems.The MoL part also has limitations, and is not applicable for layers with certain concave boundary shapes for which a radial line of the MoL has more than two crossing points on the boundary of the layer. The FEM-MoL approach is so far limited to 2D problems, and its extension to 3D problems is still a very challenging problem. RADIATION EFFICIENCY AND IMPEDANCE BANDWIDTH OF CONDUCTOR-BACKED CPW-FED

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Radiation of printed antennas with a coplanar waveguide feed

Cited by 48 publications

References 10 publications

Ultra wideband (UWB) dielectric resonator antenna using fractal‐inspired feeding mechanism

Ultra wideband (UWB) dielectric resonator antenna using fractal‐inspired feeding mechanism

A Wideband Metal-Only Patch Antenna for CubeSat

Radiation efficiency and impedance bandwidth of conductor‐backed CPW‐FED slot dipole antenna with two‐layered dielectric substrate

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