Mutual Coupling Reduction in Microstrip Array Antenna by Employing Cut Side Patches and Ebg Structures

Mohamadzade, Bahare; Lalbakhsh, Ali; Simorangkir, Roy B. V. B.; Rezaee, Alireza; Hashmi, Raheel M.

doi:10.2528/pierm19100703

Cited by 37 publications

(26 citation statements)

References 20 publications

(23 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the expected SR output, σ x , σ y , and σ z are set as 0.4 cm. According to (11), the resolutions in all three dimensions can be calculated as 0.47 cm, so the expected SR ratio is about 2.5 times in three directions.…”

Section: Simution and Training Detailsmentioning

confidence: 99%

“…Nevertheless, the coupling problem of antennas array cannot be ignored in real-world radar imaging [10], which is straightforwardly related to the beamforming of MIMO signal. Mutual coupling reduction method for patch arrays was designed and achieved around 22.7-dB reduction [11]. A wideband linear array antenna based on the new reflector slot-strip-foam-inverted patch antennas was validated to improve the bandwidth gain effectively [12].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fast and High-Quality 3-D Terahertz Super-Resolution Imaging Using Lightweight SR-CNN

et al. 2021

View full text Add to dashboard Cite

High-quality three-dimensional (3-D) radar imaging is one of the challenging problems in radar imaging enhancement. The existing sparsity regularizations are limited to the heavy computational burden and time-consuming iteration operation. Compared with the conventional sparsity regularizations, the super-resolution (SR) imaging methods based on convolution neural network (CNN) can promote imaging time and achieve more accuracy. However, they are confined to 2-D space and model training under small dataset is not competently considered. To solve these problem, a fast and high-quality 3-D terahertz radar imaging method based on lightweight super-resolution CNN (SR-CNN) is proposed in this paper. First, an original 3-D radar echo model is presented and the expected SR model is derived by the given imaging geometry. Second, the SR imaging method based on lightweight SR-CNN is proposed to improve the image quality and speed up the imaging time. Furthermore, the resolution characteristics among spectrum estimation, sparsity regularization and SR-CNN are analyzed by the point spread function (PSF). Finally, electromagnetic computation simulations are carried out to validate the effectiveness of the proposed method in terms of image quality. The robustness against noise and the stability under small are demonstrate by ablation experiments.

show abstract

Section: Simution and Training Detailsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fast and High-Quality 3-D Terahertz Super-Resolution Imaging Using Lightweight SR-CNN

et al. 2021

View full text Add to dashboard Cite

show abstract

“…To overcome the problem of mutual coupling, various techniques have been proposed to eliminate or reduce the effect of coupling in antenna arrays. Most of these techniques are designed to reduce coupling either in E-plane [9][10][11][12][13][14][15][16] or in H-plane orientation [17][18][19]. The techniques that work well in E-plane orientation do not work in H-plane.…”

Section: Introductionmentioning

confidence: 99%

Mutual Coupling Reduction in Patch Antenna Array Using Combination of Shorting Pins and Metallic Walls

Tunio¹,

Mahé²,

Razban-Haghighi³

et al. 2021

PIER C

View full text Add to dashboard Cite

A method of loaded patch antennas with shorting pins and erected walls in between patch antenna arrays is introduced to reduce surface wave and free space wave coupling in both E and Hplanes. This simple technique works equally well in both orientations by reducing coupling up to −19 dB and −15 dB (measured value) in E-plane and H-plane, respectively, as compared to a conventional patch antenna array. The scattering parameters are studied, and conclusions are made on amounts of mutually coupled power and the bandwidth of the rejection band (S 12 ). A parametric study of the variation in the level of mutual coupling with respect to height of the wall has been carried out in both E and H-planes. The simulation results are well verified through measurements.

show abstract

“…Authors in ref. [24] proposed an array with fractal geometry and EBG structure for mutual coupling reduction. The antenna had a moderate bandwidth and gain value.…”

Section: Introductionmentioning

confidence: 99%

Design of Antenna Array for Ku-Band Wireless Application

Satrusallya¹,

Mohanty²

2021

I2M

View full text Add to dashboard Cite

The antenna is the back bone of communication. In recent time, it needs to communicate in many ways along with different types of data such as voice, video, text etc. A long distance communication satellite needs a seamless transmission. The antenna design for satellite communication is to be array type to avoid the communication failure. This insists to work with array antenna to fulfil the seam less communication through satellite. Further the antenna design depends on the geometry of the patch, the placement of the patch for better gain and bandwidth. In this paper, authors have chosen the circular patch due to its single degree of freedom. The antenna is compact and is of 30X30mm2 where substrate thickness is considered as 1.6mm. The central patch is of rectangular shape with two slots. Slot is made because of better bandwidth. It is cut diagonally at the corner. As a result, the bandwidth is increased to 2.4GHz with a gain of 5.68dB. The substrate is considered to be FR4 Epoxy. The proposed design satisfies the compactness along with the satellite communication band with satisfactory gain. Simulation results compromise with the measured value. A 3X3 array of circular parasitic elements is considered. It is found that the antenna performs well at 14GHz that is meant for Ku band. The radius of the parasitic patch is considered as 4mm to satisfy the less space with good performance.

show abstract

Mutual Coupling Reduction in Microstrip Array Antenna by Employing Cut Side Patches and Ebg Structures

Cited by 37 publications

References 20 publications

Fast and High-Quality 3-D Terahertz Super-Resolution Imaging Using Lightweight SR-CNN

Fast and High-Quality 3-D Terahertz Super-Resolution Imaging Using Lightweight SR-CNN

Mutual Coupling Reduction in Patch Antenna Array Using Combination of Shorting Pins and Metallic Walls

Design of Antenna Array for Ku-Band Wireless Application

Contact Info

Product

Resources

About