Ultra-wideband E-shaped dielectric resonator antenna fed by coaxial probe and trapezoidal conductor

Abushakra, Feras; Al‐Zoubi, Asem S.; Uluer, Ismail H.; Hawatmeh, Derar

doi:10.1080/21681724.2020.1726475

Cited by 4 publications

(2 citation statements)

References 19 publications

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“…The L‐shaped strip along with the microstrip feed line provides a wide impedance BW, but the antenna still lacks in more physical size. Probe‐fed E‐shaped DRA is presented in Abushakra et al, 7 where the probe is directly connected to a trapezoidal patch and is attached to the DRA. The E‐shaped design of the DRA contributes to the enhancement of the radiation pattern with the UWB performance of the antenna.…”

Section: Introductionmentioning

confidence: 99%

Novel low‐profile stacked edge grounded rectangular dielectric resonator antenna with compact size for UWB applications

Gaonkar

Ayyappan

Patel

2023

Micro & Optical Tech Letters

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In this paper, a low‐profile stacked dielectric resonator antenna (DRA) is proposed for ultra‐wideband applications. To improve the performance of the proposed antenna, techniques such as stacking of two dielectric materials, air gap slots, edge grounding technique, and the partial ground plane is employed. The measured impedance BW of the proposed antenna is 106% at the center frequency of 7.7 GHz (3.65–11.8 GHz). The analysis of field lines shows that the fundamental TEx111 mode is preserved at the first resonant frequency of 4.4 GHz. The maximum gain achieved over the operating frequency range is 6.38 dBi. The design is compact in its nature with a miniaturization capability of 66% of its volume. The proposed design is structurally simple, has a low weight, and has a high radiation efficiency of more than 90% in the operational range.

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Section: Introductionmentioning

confidence: 99%

Novel low‐profile stacked edge grounded rectangular dielectric resonator antenna with compact size for UWB applications

Gaonkar

Ayyappan

Patel

2023

Micro & Optical Tech Letters

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“…Therefore, a trade-off is needed to have a design that can cover a wide bandwidth, high gain, compact size and narrow main beam. In an attempt to overcome aforementioned challenges, dielectric resonator antenna (DRA) is a good candidate for wideband, high gain and low weight antenna [10][11][12]. In [13], a feeding method based on the standing-wave was used to feed the RDRA array.…”

Section: Introductionmentioning

confidence: 99%

Wideband and High Efficiency 64-Element RDRA Array for Radar Applications

Abushakra

Al‐Zoubi

Al-Hmoud

et al. 2021

IEEE Open J. Antennas Propag.

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─ This paper presents the capabilities of an 8×8 Rectangular Dielectric Resonator Antenna (RDRA) planar array with broad bandwidth and high gain. To improve shielding of a multi-stage feeding network, the proposed array is designed using a stripline feeding network with two different substrates. To enhance impedance matching while keeping a sufficient F/B ratio of 20 dB, the lower ground of the stripline has a smaller dimension than the upper ground plane. The proposed array covers the frequency band from 3.79 to 6.29 GHz with 50% fractional bandwidth. The peak realized gain ranges from 18 to 22 dBi, with 85% of radiation efficiency throughout the frequency of interest. The overall size and weight of the array is 215×215×14.5 mm 3 and 650 g, respectively. Furthermore, the radiation patterns appear as low as 15 dB of peak-to-side lobe level with 25 dB cross polarization level, which makes the proposed array suitable for UAS (Unmanned Aerial System) radar applications. The measurements and simulations agree considerably.

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A Compact Dual-polarized Probe-fed UWB Antenna System for Breast Cancer Detection Applications

Nawati,

Sujatha,

Karthikeya

et al. 2024

Wireless Netw

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This article proposes an electrically small, probe-fed Ultra-Wideband (UWB) monopole antenna on a slotted truncated ground plane for breast cancer detection. The physical footprint of the proposed antenna element is 33 mm × 35 mm × 0.5 mm. This element is designed on the low-cost FR4 Epoxy substrate with a thickness of 0.5 mm. The proposed antenna has an electrical size of 0.33λ × 0.35λ × 0.005λ at the lowest frequency of operation; the radiator offers an impedance bandwidth of 8.34 GHz, which implies a fractional bandwidth of 115.5%. A compact dual-polarized antenna topology with two orthogonally placed probe-fed monopole antennas is proposed to achieve polarization diversity. The impedance characteristics of the individual radiating elements are maintained in spite of the electrical proximity of the radiators. The numerically computed and experimentally measured results of dual-polarized electrically small UWB antenna agree quite well. The proposed dual-polarized antenna topology is investigated for its utility in breast cancer detection in simulation.

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Ultra-wideband E-shaped dielectric resonator antenna fed by coaxial probe and trapezoidal conductor

Cited by 4 publications

References 19 publications

Novel low‐profile stacked edge grounded rectangular dielectric resonator antenna with compact size for UWB applications

Novel low‐profile stacked edge grounded rectangular dielectric resonator antenna with compact size for UWB applications

Wideband and High Efficiency 64-Element RDRA Array for Radar Applications

A Compact Dual-polarized Probe-fed UWB Antenna System for Breast Cancer Detection Applications

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