Broadband high‐gain slot grid array antenna for millimeter wave applications

Hu, Xiongmin; Wong, Sai‐Wai; Li, Yin; Lin, J. Y.; Yang, Yang; Sun, Guang‐Hua; Zhang, Li

doi:10.1002/mmce.22495

Cited by 4 publications

(4 citation statements)

References 29 publications

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“…4 Hence MGAA has been widely used in microwave and millimeter-wave applications in recent years. [5][6][7][8][9][10][11][12] In modern 5G wireless communication systems, antennas with high gain and wide frequency bands are greatly desired. But the traditional MGAA suffers from narrow bandwidth, which is also the major drawback of the micro strip array antenna.…”

Section: Introductionmentioning

confidence: 99%

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A broadband compact micro strip grid array antenna backed by an AMC reflector

Hao

Xing

Liu

et al. 2022

Int J RF Mic Comp-Aid Eng

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A broadband and compact micro strip grid array antenna (MGAA) is proposed. The proposed array is based on hourglass‐shaped loop elements, which are designed to reduce the size of the grid area in both horizontal and vertical directions with an area reduction of about 22%. To improve the radiation performance, a petaloid‐shaped artificial magnetic conductor (AMC) surface is adopted to replace the traditional metal ground. An air gap layer is introduced between the grid array layer and the AMC surface to enhance the gain and bandwidth of the antenna. A prototype antenna was fabricated and tested. The measured results show that the designed antenna has a wide impedance bandwidth (S11<−10dB), which is ranging from 4.63 to 6.08 GHz (25.0%). The 3‐dB gain bandwidth is from 5.23 to 6.45 GHz (21.0%) with a peak gain of 16.1 dBi at 5.8 GHz. The proposed MGAA consists of 14 radiating elements and possesses a compact size of 2.690λ0×2.690λ0×0.077λ0(λ0‐the wavelength in free space at 5.8 GHz).

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Section: Introductionmentioning

confidence: 99%

“…This not only makes its design and fabrication easier but also avoids the radiation loss of the feeding network, resulting in a lower back lobe and enough cross‐polarization control of the pattern 4 . Hence MGAA has been widely used in microwave and millimeter‐wave applications in recent years 5–12 …”

Section: Introductionmentioning

confidence: 99%

A broadband compact micro strip grid array antenna backed by an AMC reflector

Hao

Xing

Liu

et al. 2022

Int J RF Mic Comp-Aid Eng

View full text Add to dashboard Cite

show abstract

“…Wideband antennas have been widely applied in various fields. With the rapid demands of increased functionality of wireless communication, detection and reconnaissance, these antennas appeared in different application systems, [1][2][3][4][5][6][7][8][9][10] therefore a great diversity of wideband antennas have been proposed. However, for some special applications, a lot of research and work is still needed.…”

Section: Introductionmentioning

confidence: 99%

Wideband tightly‐coupled dual‐line polarized P‐band antenna array with low‐profile lightweight metal structure

Sun

Wang

et al. 2021

Int J RF Mic Comp-Aid Eng

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In this article, an all-metal structure antenna array is proposed. The novel hollow-out structures are designed to achieve low profile and lightweight. The top structure of the element is also tightly coupled, once again lowering the antenna array profile. The overall size of the array is 1354.0 Â 1354.0 mm 2 , the spacing between elements is 323.0 mm. The optimized array-structure profile is only 0.12 λ 0 (λ 0 corresponds to the wavelength of 0.4 GHz). In addition, an excellent dual-line polarization radiation is achieved by using a crossstaggered arrangement. Both polarizations of the array have a cross-polarization-level of smaller than À30 dB. In order to verify the feasibility of the scheme, prototype processing and testing are carried out, and the test results are consistent with the simulation results. The frequency band covers the P-band (0.4-0.7 GHz). The active voltage standing wave ratios (VSWRs) are less than 2.0. In addition, the antenna array has favorable radiation characteristics.The measured realized gain varies from 14.7 to 19.6 dBi over the work band. The total antenna efficiency is higher than 83%. It can be applied to phased arrays for the satellite system and other broadband lightweight metal antennas.

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“…Another work recently reported a high-gain slot grid array antenna for 26 GHz band. 13 A quad-polarized compact slot array antenna for 26-30 GHz is introduced in Reference 14.…”

Section: Introductionmentioning

confidence: 99%

A meta‐surface loaded, low profile 28 GHz phased array antenna

Hussain

et al. 2021

Int J RF Microw Comput Aided Eng

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A low-profile wide-scan phased array for 28 GHz 5G band operation, based on the current sheet array (CSA) concept, is presented in this work. The array is dual-polarized with horizontally and vertically polarized dipoles are placed in close proximity to leverage intentional capacitive coupling. A meta-surface based on fully split rings is printed on the top of the matching layer, contributing to wide-scan performance. A capacitive metallic plate is placed below the cross-section formed between orthogonal dipole elements to subdue the inband coupled-loop modes. The design is demonstrated to operate at 26-30 GHz with voltage standing wave ratio (VSWR) <3 for ±60 scanning in principal planes, with a low-profile 0.26λ h . The simulations are validated by measuring an 8 Â 8 array prototype, which shows good agreement with the simulated predictions.

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Broadband high‐gain slot grid array antenna for millimeter wave applications

Cited by 4 publications

References 29 publications

A broadband compact micro strip grid array antenna backed by an AMC reflector

A broadband compact micro strip grid array antenna backed by an AMC reflector

Wideband tightly‐coupled dual‐line polarized P‐band antenna array with low‐profile lightweight metal structure

A meta‐surface loaded, low profile 28 GHz phased array antenna

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