Simulation Analysis of a Broadband High-Gain Omnidirectional Printed Antenna for Mobile Communications

Lin, Sanbao; Wei, Xiaobing; Zhang, Xinyue; Zhang, Hongjun; Zhang, Xingqi

doi:10.1109/ap-s/usnc-ursi47032.2022.9886725

Cited by 1 publication

(1 citation statement)

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“…Although this is not the goal here, these approaches provide key ideas for antenna design to yield a wide beam width [27], [28], [29], [30]. Furthermore, especially at higher frequencies, printed circuit board (PCB)-based approaches [31], [32], [33], [34], [35], [36], [37], [38] exist for omnidirectional radiating antennas that show a wide coverage. However, either the dimensions of the antennas become too small for use in higher frequency ranges or the bandwidth is very limited.…”

Section: Introductionmentioning

confidence: 99%

3D Printed Hemispherically Radiating Antenna for Broadband Millimeter Wave Applications

Engel,

Khouri,

Lomakin

et al. 2023

IEEE Open J. Antennas Propag.

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Nowadays, additive manufacturing provides far-reaching possibilities for use in radio frequency components. In addition to almost unlimited freedom of design as compared to conventional manufacturing, the absence of further assembly steps is a key aspect of 3D printing. In this paper, a 3D printed monolithic antenna for millimeter wave-sensing applications is presented with a full hemispherical coverage. The antenna is designed as an ensemble of a waveguide horn antenna and a differentially fed dipole antenna. The slotted waveguide approach was utilized to improve the manufacturing quality on the waveguide inside. The influence of two optimized antenna elements, a metal plane, and a cut-out window, on the beam pattern is comprehensively investigated. A huge half power beam width of 142 • in both directions, elevation and azimuth, is presented at 79 GHz and a boresight gain of 4.7 dBi was measured. The beam pattern in the frequency range from 76 to 81 GHz is studied in greater detail, where a half power beam width of at least 112 • is achieved. Due to the −10 dB matching capability bandwidth of over 28 GHz, the antenna is also suitable for extremely broadband applications with a −5 dB angular width of better than 100 • . Furthermore, the system design describes how to integrate the antenna into hybrid circuit designs and the manufacturing tolerances are examined. The antenna offers attractive possibilities for millimeter wave-sensing applications in the area of assisted living and industrial monitoring, especially whenever blind spots have to be avoided.

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