A Novel Dielectric Slab Antenna Based on Microstrip-Franklin Excitation for mm-Waves

Boas, Evandro César Vilas; Alves, A. A. C.; Ribeiro, José Antônio Justino; Sodré, Arismar Cerqueira

doi:10.1590/2179-10742020v19i2822

Cited by 4 publications

(1 citation statement)

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“…The six-element array antenna generated a wide bandwidth over a single resonant frequency. In [19], the Franklin antenna was developed on dielectric slab to operate at single band of operation. Here, the meanderbased geometry is used to obtain high impedance phenomenon at the desired single band resonance.…”

Section: Introductionmentioning

confidence: 99%

A Dual-Band Modified Franklin mm-Wave Antenna for 5G Wireless Applications

et al. 2021

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Franklin array antennas are considered as one of the most competitive candidates for millimeter-wave (mmW) 5G applications due to their compact size, simple geometry and high gain. This paper describes a microstrip Franklin antenna array for fifth generation (5G) wireless applications. The proposed modified Franklin array is based on a collinear array structure with the objective of achieving broad bandwidth, high directivity, and dual-band operation at 22.7 and 34.9 GHz. The designed antenna consists of a 3 × 3 array patch element as the radiating part and a 3 × 3 slotted ground plane operating at a multiband resonance in the mmW range. The dimensions of the patch antennas are designed based on λ/2 of the second resonant frequency. The designed antenna shows dual band operation with a total impedance bandwidth ranging from 21.5 to 24.3 GHz (fractional bandwidth of 12.2%) at the first band and from 33.9 to 36 GHz (fractional bandwidth of 6%) at the second band in simulation. In measurement, the impedance bandwidth ranges from 21.5 to 24.5 GHz (fractional bandwidth of 13%) at the first band and from 34.3 to 36.2 GHz (fractional bandwidth of 5.3%) at the second band, respectively. The performance of the antenna is analyzed by parametric analysis by modifying various parameters of the antenna. All the necessary simulations are carried out using HFSS v.14.0.

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Section: Introductionmentioning

confidence: 99%

A Dual-Band Modified Franklin mm-Wave Antenna for 5G Wireless Applications

et al. 2021

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Photonics-based all-dielectric horn antenna for millimeter waves in 5G and 6G applications

Ribeiro,

Boas,

Figueiredo

et al. 2024

Applied Physics Letters

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This work introduces a cost-effective photonics-based approach for fast-implementing horn antennas operating in millimeter-wave frequencies (mm-waves). Instead of using conventional metallic guiding structures, we employed an all-dielectric quarter-wave stack Bragg mirror photonic design. As a proof-of-concept, we used five semi-spherical air-polylactic acid bilayers stacked with a conical (horn-like) aperture fabricated through a one-step 3D printing process. The prototype, with a bandwidth of 2.6 GHz (from 24.96 to 27.50 GHz), was fed by the WR28 standard waveguide mechanism with measured gain ranging from 10.6 to 13.9 dBi (between 25 and 27 GHz). These outcomes demonstrate our idea's suitability for alternative design of high-frequency antennas for future 5G and 6G wireless communications systems, overcoming the precision constraints of traditional manufacturing methods.

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