Gain enhancement of microstrip grid array antenna for 5G applications

Muhamad, Wan Asilah Wan; Ngah, Razali; Jamlos, Mohd Faizal; Soh, Ping Jack; Lago, Herwansyah

doi:10.1109/ursiap-rasc.2016.7601202

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…The planar metamaterial antenna in [18] designed an offset-fed rhombic split ring to increase the bandwidth, but not for SLL reduction. In [19], a rhombic grid array antenna was proposed to increase the antenna gain. Although [20] qualitatively described the calculation principle of the array factor of planar arrays with different shapes, it did not give a specific analytical formula that can be applied to the proposed rhombic array antenna.…”

Section: Introductionmentioning

confidence: 99%

A 60 GHz Rhombic Patch Array Antenna With High Gain, Low Sidelobe Level, and Reduced Array Area

Tsai

Jin

Liao³

et al. 2022

IEEE Access

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This work designs a 60 GHz rhombic patch array antenna with high gain, low sidelobe level (SLL), and reduced array area. This antenna consists of eight linear serial arrays with varying number of patches. A slot-coupled center-fed structure of substrate-integrated waveguide (SIW) is designed to simplify the complex feed network required for direct excitation of planar arrays and reduce insertion loss. The rhombic configuration utilizes the quantity ratio of patches for equivalent taper excitation to reduce SLL, rather than the use of tapered width as in traditional designs, which can achieve high gain and avoid cumbersome resizing of patches and connecting lines. An array factor analysis method is proposed to predict the SLL of the antenna. To form a planar array and further reduce the H-plane SLL, a −25-dB Dolph-Chebyshev SIW feed network is constructed. The measured gain of the rhombic array antenna is 18.2 dBi, and the E-plane and H-plane SLLs are less than −20 dB and −25 dB, respectively. This work also simulates a reference uniformly excited high-gain 810 array antenna. Compared to this reference antenna, the proposed rhombic array antenna has similar simulated gain but much lower SLL and 23% smaller array area.INDEX TERMS High-gain antenna, low sidelobe, millimeter-wave antenna, rhombic array antenna, 60 GHz antenna

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Section: Introductionmentioning

confidence: 99%

A 60 GHz Rhombic Patch Array Antenna With High Gain, Low Sidelobe Level, and Reduced Array Area

Tsai

Jin

Liao³

et al. 2022

IEEE Access

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“…Grid array antenna consists of several grid cells as the radiating element on a dielectric and backed by a ground plane. Figure 1 shows the single element of the cells formed by combining two types of lines, long side, l and short side, s, which act as the transmission line and the radiation element respectively [27]. In this paper, a design of transparent microstrip grid array antenna will be presented and discussed.…”

mentioning

confidence: 99%

“…Table 1 shows the optimized dimension of the reference design based on equations in [32]. For grid array antenna, the loop dimensions are approximately half of guided wavelength vertically (s=λg/2) and one full guided wavelength horizontally (l=λg) [27]. Figure 3 shows the front view of the transparent Grid Array Antenna with 8 optimized loops.…”

mentioning

confidence: 99%

Design of transparent microstrip grid array antenna

Ali

Misran

Mansor

et al. 2019

IJEECS

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<p>A transparent grid array antenna of 28 GHz frequency is presented. The radiating element of the antenna is made of ITO thin film and printed on a glass as the dielectric substrate. The simulation of the antenna executed by using Computer Simulation Technology (CST) Microwave Studio software demonstrated at 28 GHz operating frequency for 5G band applications. This antenna then compared to the rectangular microstrip patch antenna of the same operating frequency. Structural parameters of the proposed antenna were optimized based on parametric studies done. Grid array antenna gives better performance as it gives 35.7% lower return loss with -43.88 dB, better efficiency and gain with a gain of 7.358 dB, which is more than 40% increases.</p>

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