Optically Controlled Reconfigurable Substrate Integrated Waveguide Slot Array Antenna for 5G Applications

Ebrahimzadeh, Rasoul; Zakeri, Bijan; Yousefzadeh, Mohammad; Hosseininejad, Seyed Ehsan

doi:10.1109/ist50524.2020.9345909

Cited by 6 publications

(2 citation statements)

References 15 publications

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“…In this work, a standing-wave slot array is designed to achieve the same phase in the radiation plane. To note, SIWs are mostly designed for T E 10 mode with width of W SIW and behave as the dielectric filled waveguide (DFW) with an equivalent width of W eq as the following [22]:…”

Section: Design Of Planar Siw Slot Array As a Plane Wave Generator A ...mentioning

confidence: 99%

Ultra-Compact 60-GHz Near-Field Focusing Configuration Using SIW Slot Array Loaded by Transmission Coding Metasurface Lens

Ebrahimzadeh,

Hosseininejad,

Zakeri

et al. 2024

IEEE Trans. Antennas Propagat.

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This paper proposes an ultra-compact Near-field Focusing (NFF) setup at 60 GHz. The proposed configuration is included a planar substrate integrated waveguide (SIW) slot array as a feeder for a three-layer transmissive coded metasurface lens. A comprehensive design methodology is presented, encompassing unit cell design, coded metasurface lens synthesis, and planar slot array design. The transmissive metasurface lens performance is studied and validated by numerical and analytical approaches. Then, the planar slot array design considerations are elaborated, investigating the amplitude and phase of the resulting waves to ensure that quasi-plane waves are produced in the near-field region. Finally, the slot array is employed to illuminate the designed metasurface where the distance between the feeder and metasurface lens is 2 mm (0.4λ), which shows the integrability and being packed of the proposed setup, contrary to the conventional metasurface-based NFF structures. There are fair agreements between analytical, numerical, and measurement methods to verify the presented approach. It turns out that the proposed device can focus waves close to the diffraction limit, which results in a high-resolution efficiency.

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Section: Design Of Planar Siw Slot Array As a Plane Wave Generator A ...mentioning

confidence: 99%

Ultra-Compact 60-GHz Near-Field Focusing Configuration Using SIW Slot Array Loaded by Transmission Coding Metasurface Lens

Ebrahimzadeh,

Hosseininejad,

Zakeri

et al. 2024

IEEE Trans. Antennas Propagat.

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“…They have many features of rectangular waveguides, with the advantage of a low-cost fabrication process based on regular printed circuit board (PCB) technology [35]. SIW technology has found application in the design of various microwave and millimeter-wave components, such as filters, sensors, and reconfigurable electronics [36][37][38]. This technology offers compact dimensions, cost-effectiveness, high quality, and exceptional performance.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Design of a Diplexing Power Divider for Ku-Band Satellite Applications

Karami,

Boutayeb,

Amn-e-Elahi

et al. 2023

Sensors

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In dual-band RF front-end systems, to transmit different frequency signals in different paths, each path requires the power to be divided along two transmission channels. In such systems, a circuit is created in which the input ports of power dividers with different frequency bands are connected to the output ports of a diplexing circuit in a cascade form. These circuits often contain different band filters in their schemes and have a complicated design. In this paper, an innovative technique for designing a diplexing power divider for Ku-band applications is presented. The proposed structure is designed on multilayer printed circuit boards (PCBs) and the utilization of a transition based on an extended SMA connector. The extended SMA connector provides two separate paths for the transmission of the RF signals. Hence, the proposed structure eliminates the need for intricate and bulky bandpass filters, allowing seamless integration with other planar devices and components within Ku-band satellite subsystems. In fact, the proposed architecture channelizes the divided output electromagnetic signals into two separate frequency spectrums. With the presented technique, two frequency ranges are envisaged, covering Ku-band applications at 13–15.8 GHz and 16.6–18.2 GHz. With the proposed structure, an insertion loss as low as 1.5 dB was achieved. A prototype of the proposed power-divider diplexing device was fabricated and measured. It exhibits a good performance in terms of return loss, isolation, and insertion losses.

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Multi beam scanning programmable metasurface using miniaturized unit cells for 5G applications

Ebrahimzadeh

Zakeri

Darvish

et al. 2022

Journal of Electromagnetic Waves and Applications

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Optically Controlled Reconfigurable Substrate Integrated Waveguide Slot Array Antenna for 5G Applications

Cited by 6 publications

References 15 publications

Ultra-Compact 60-GHz Near-Field Focusing Configuration Using SIW Slot Array Loaded by Transmission Coding Metasurface Lens

Ultra-Compact 60-GHz Near-Field Focusing Configuration Using SIW Slot Array Loaded by Transmission Coding Metasurface Lens

Analysis and Design of a Diplexing Power Divider for Ku-Band Satellite Applications

Multi beam scanning programmable metasurface using miniaturized unit cells for 5G applications

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