High power handling GaAs SP4T Switch-based Beam-Switching planar antenna module for 5G New-Radio FR2 applications

Tsao, Yi‐Fan; Hsu, Houtse; Desai, Arpan

doi:10.1016/j.aeue.2022.154494

Cited by 5 publications

(2 citation statements)

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“…The study of the Butler matrix [7][8][9] involves many aspects, such as the perspective of the frequency band, 77 GHz [3], Ka-band [10], K-band [11], X-band [12], C-band [13], and S-band [13]. From the perspective of large-power design [14], a specific computer-aided method for a large-power Butler matrix design is given [15]. Various realization techniques and associated transmission line technologies have been reported to fabricate Butler matrices.…”

Section: Introductionmentioning

confidence: 99%

“…Various realization techniques and associated transmission line technologies have been reported to fabricate Butler matrices. These include microstrip lines [16], waveguides [14], and square coaxial lines [17], to list a few examples. Substrate-integrated waveguide (SIW) Butler matrix has been developed as a compromise between the low loss and good high-frequency performances of rectangular waveguide types, as well as the integrability of planar transmission line types.…”

Section: Introductionmentioning

confidence: 99%

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Design and Implementation of C-Band Large-Power Planar Butler Matrix in SRS

Li,

Yan,

Liu

et al. 2024

Sensors

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In satellite remote sensing (SRS), there is a demand for large-power microwave components. A Butler matrix is essential to a transmitting antenna array in SRS. This article illustrates the electrical and mechanical design, simulation, and test results of a large-power planar beamforming network for SRS at C-band. It is a 4 × 4 Butler matrix based on square coaxial lines. Short-ended stubs are used in the Butler matrix to broaden its bandwidth by 10%, support inner conductors, and enhance heat transfer in vacuum environments. The simulation results are consistent with the measured results. The reflection coefficient is less than −18 dB, and the isolation is more than 23 dB from 3.8 GHz to 4.2 GHz. The insertion losses are less than 0.6 dB, and the phase errors are better than ±6°. The measured peak microwave power of the proposed Butler matrix is 9 kW. Its size is 440 × 400 × 40 mm3. The proposed Butler matrix beamforming network can be applied to SRS systems.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Implementation of C-Band Large-Power Planar Butler Matrix in SRS

Li,

Yan,

Liu

et al. 2024

Sensors

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Bioinspired planar switched beam network using Butler matrix on a flexible substrate targeting multifaceted millimeter-wave applications

Biswas,

Karmakar

2024

Int. J. Microw. Wireless Technol.

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This paper details the design and development of a planar switched beam network using 4 × 4 Butler matrix (BM) over a thin and flexible type biocompatible substrate. Four mils thick liquid crystal polymer (LCP) is used as a substrate here (ϵr = 2.92, tanδ = 0.002). The proposed design is centered at 28 GHz, targeting commercial millimeter-wave applications. Floral-shaped antenna with defective ground structures has been implemented as basic radiating elements. The whole structure is based on microstrip line configuration. The architecture occupies an area of 23.85 × 19.20 mm2 over the LCP substrate. Individual components of the BM are detailed here, followed by a system analysis of the whole integrated structure. The present work also covers the electrical equivalent circuit modeling of the whole beam-forming network. The fabricated prototype offers better than 18 dB return losses at each input port for the desired frequency band with 6 dBi (max.) peak gain and 500 MHz bandwidth around the center frequency. Port-to-port isolation of better than 15 dB is achieved with this topology. Experimental and simulated results are in good agreement in all aspects. A comparative study is also chalked out to highlight the significance of the current research work with respect to alike earlier reported structures.

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