Compact Bent-Corner Orthogonal Beam Switching Antenna Module for 5G Mobile Devices

Karthikeya, G. S.; Koul, Shiban K.; Poddar, Ajay K.; Rohde, Ulrich L.

doi:10.26866/jees.2022.1.r.63

Cited by 12 publications

(3 citation statements)

References 39 publications

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“…Furthermore, compared to the conventional microwave frequen-cy band, the performance and costs involved in the mmWave spectrum are more sensitive to the packaging structure of the antenna and the radio-frequency integrated circuit (RFIC). Consequently, the integration of these two components needs to be optimized to improve performance and ensure the feasibility of mass production in terms of cost, reliability, yield, and measurement facilities [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Packaging and Antenna-Assembled Hybrid Stacked PCB with Novel Vertical Transition for 39 GHz 5G Base Stations

Lee,

Ha,

Baek

et al. 2024

J. Electromagn. Eng. Sci

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This paper proposes a novel packaging and large-scale antenna-assembled structure for a printed circuit board (PCB) that reinforces productivity, facilitates cost reduction, and maintains reliability. This was achieved by splitting the antenna from the main board and packaging it into a radio-frequency integrated circuit. In addition, two innovative solutions—an externally attachable flexible PCB antenna and a PCB-embedded coaxial line—are introduced to overcome the degradation in antenna performance and vertical RF transition loss in the proposed low-cost hybrid PCB. First, the proposed externally attachable flexible PCB antenna and a parasitic aircoupled antenna, which were easily assembled on the PCB, achieved an antenna efficiency of 95% and an impedance bandwidth of 7 GHz. Second, the fabricated coaxial line exhibited enhanced impedance matching over a wide frequency range of 30–40 GHz and improved insertion loss of approximately 1.4 dB. Furthermore, the packaged antenna, composed of 256 dual-polarized antenna elements per stream, incorporated a 39 GHz CMOS-based 16-channel phased-array transceiver IC. The set-level beam-forming measurements were verified considering an effective isotropic radiated power of 55 dBm at boresight and a steering range >±60°. In addition to being suitable for mass production in terms of cost and reliability, the proposed structures and solutions met the required antenna and beam-forming performance for commercial 39 GHz base stations without sacrificing performance.

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Section: Introductionmentioning

confidence: 99%

Packaging and Antenna-Assembled Hybrid Stacked PCB with Novel Vertical Transition for 39 GHz 5G Base Stations

Lee,

Ha,

Baek

et al. 2024

J. Electromagn. Eng. Sci

View full text Add to dashboard Cite

show abstract

“…Modern communication technology has entered the 5G era. The high speed of 5G wireless communication is due to large bandwidths in higher frequency bands [1][2][3][4][5][6][7]. However, the attenuation of 5G signals is greater than that of LTE signals, since it is proportional to the square of the frequency [8].…”

Section: Introductionmentioning

confidence: 99%

High-Isolation 5G Repeater Antenna Using a Novel DGS and an EBG

Kang

Park

Cho³

et al. 2023

J. Electromagn. Eng. Sci

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Repeaters have been widely used to improve communication quality and extend the coverage areas of wireless communication systems. However, mutual coupling between the Tx and Rx antennas significantly deteriorates the performance of repeater systems. This work presents a high-isolation repeater antenna operating in a frequency range of 3.6–3.7 GHz in a 5G communication system. Perpendicularly arranged microstrip patch antennas are used because this arrangement can lead to greater isolation than a parallel arrangement. However, the perpendicular arrangement results in radiation pattern distortion due to the ground mode. A novel defected ground structure (DGS) is developed to suppress the ground mode and simultaneously reduce the mutual coupling between the Tx and Rx antennas. An electromagnetic bandgap (EBG) is additionally employed to further increase isolation. The measurement results of a fabricated repeater antenna show no radiation pattern deformation and an isolation improvement of 28 dB over the repeater antenna without the DGS and EBG.

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“…This is particularly important in contemporary, space-limited applications such as IoT devices, mobile devices, and sensor networks. [21], [22].…”

Section: Introductionmentioning

confidence: 99%

Multi-Beam 5G Antenna With Miniaturized Butler Matrix Using Stacked LTCC

Jung,

Ryu,

Jung

2023

IEEE Access

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In this work, we present a compact four-direction beamforming 5G antenna based on a stacked 4 × 4 Butler matrix and a microstrip patch array antenna. The proposed beamforming antenna is a stacked-up structure using the low temperature co-fired ceramics (LTCC) process and thus its size can be significantly reduced by compared to a conventional beamforming antenna with a single-layer 4 × 4 Butler matrix. Moreover, spurious radiation generated from the Butler matrix can be effectively suppressed due to shielding effects inherent to the multilayer substrate. The fabricated beamforming antenna is composed the stacked 4 × 4 Butler matrix with striplines and the 4 × 1 array microstrip patch antenna. The overall size of the fabricated antenna system is 22.02 mm × 5.93 mm × 1.20 mm. The beam steering angles are measured to be -14°, 44°, -44° and 14°.INDEX TERMS Butler matrix, Array patch antenna, Beamforming network, Stacked butler matrix, 5G

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Compact Bent-Corner Orthogonal Beam Switching Antenna Module for 5G Mobile Devices

Cited by 12 publications

References 39 publications

Packaging and Antenna-Assembled Hybrid Stacked PCB with Novel Vertical Transition for 39 GHz 5G Base Stations

Packaging and Antenna-Assembled Hybrid Stacked PCB with Novel Vertical Transition for 39 GHz 5G Base Stations

High-Isolation 5G Repeater Antenna Using a Novel DGS and an EBG

Multi-Beam 5G Antenna With Miniaturized Butler Matrix Using Stacked LTCC

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