Design Of Slotted Patch Antenna Research Articles

A Slotted Patch Antenna Design and Analysis for Detecting Breast Cancer

Breast cancer, a common and deadly cancer for woman, is gradually increasing each year. It can be cured at early stages. Magnetic resonance imaging, Mammography, Tomography, Ultrasound, and Biopsy are some of the medical technologies that can be used to identify breast cancer. However, none of them are as simple and effective as a microwave imaging (MI) technique. MI is a non-ionizing, noninvasive, tumor-sensitive, low-cost approach that consumes low power. The performance of MI is primarily determined by the antenna employed in the system. In this paper, we propose a new partial ground plane and slots-based miniature patch antenna designed for breast tumor detection within the FCC’s authorized range (3.1 GHz–10.6 GHz). The dimension of this antenna is 30 × 20 mm2. High frequency structure simulator (HFSS) software is used to design a breast phantom with and without a tumor, and the antenna is separately simulated on both the tumored and tumor-free breast phantoms. The presence of a tumor within the breast is clearly depicted by the changes in return loss, VSWR, current density, electric field, and magnetic field strengths. The findings demonstrate that the proposed antenna is a suitable sensor which can detect a very tiny size tumor (2 mm) due to its compact size and broad bandwidth.

Inset-fed Multiband Square Patch Antenna on Flexible substrate for Fifth-Generation Wireless Communication

Purpose: Over a decade, the antenna has sparked considerable interest in the 5G frequency band in the wireless domain (covering industrial applications, home automation and mobile communication) because of its numerous advantages like compact, conformal to surfaces, easily integrated with the devices, etc. In general, an Antenna can be defined as a conductor which is exposed to space operable for a specific application. The purpose of the study is to design the Slotted patch antenna for 5G applications on a flexible dielectric substrate material which makes the antenna compact in its design aspect. Design/Methodology/Approach: Initially, the antenna design is carried out using the theoretical framework based on the available equations. The microwave studio software - Computer Simulation Technology (CST) is used to create and model the different antennas. Findings/Result: Based on the simulated models, the slotted patch antenna design 5 has 2 bands namely: 3.25 GHz, the return loss is -17.47 dB, and 5.89GHz, the return loss is -21.37dB. Whereas design 6 has 4 resonant bands measured at 2.04 GHz, the return loss (RL) is -11.68 dB, at 5.80GHz, the RL is -22.36 dB, at 7.14 GHz, the RL is -28.71 dB and at 8.83 GHz, the RL is -13.36 dB. The maximum bandwidth achieved for slotted patch antenna design 5 is 5% and the maximum bandwidth achieved for slotted patch antenna design 6 is 8%. Whereas the design of Multi slotted patch antenna flexible substrate design 7 and design 8 has the maximum achieved bandwidth of 10 %. Originality/Value: The design of slotted patch and multi slotted patch antenna using inset feed method on a flexible substrate for 5G frequency band. Paper Type: Design based Research Analysis.

Brain Storm Optimization for Electromagnetic Applications: Continuous and Discrete

Brain storm optimization (BSO) is a swarm intelligence optimization algorithm inspired by the collective behavior of human beings in solving problems. This paper provides a conceptual overview and detailed explanation of the BSO algorithm. For the first time, the effectiveness of BSO in electromagnetic applications is demonstrated using a Yagi–Uda antenna design and a Luneburg lens antenna design, and this effectiveness is further validated via optimization, prototyping, and measurement of a dual-band slotted patch antenna design. In addition, a novel binary version of BSO (BBSO) for optimizing discrete problems is proposed, and the process of transforming the concept of BSO into a binary language is discussed in detail. A method for selecting algorithm parameter values for BBSO is shown. Finally, BBSO is applied successfully to an array thinning example and a pixelated patch antenna design.

Directivity enhancement of miniaturized microstrip patch antenna using metamaterial cover

The variation in the spacing height of a metamaterial cover over the slotted patch antenna is reported to improve its directivity. HFSS software is used for simulations. An antenna is designed with a metamaterial cover to work in three bands within the frequency range of 1-4 GHz. A comparative result analysis of the effect of varying the spatial height of the metamaterial cover over patch antenna is shown theoretically. The proposed novel slotted patch antenna design has triband operation in the frequency range of 1-4 GHz with the miniaturized overall antenna size of the dimension 52.5 mm × 36.5 mm × 1.56 mm, that is equivalent to miniaturized design reported to our knowledge so far. For the very first time, the concept of Newton's divided difference method is applied for evaluating the performance parameters of the antenna. A global formula is developed to indicate the relationship of the directivity with the spatial height. The designed model has various applications in the field of satellite, aeronautical and optical communications mainly in the frequency range of L and S band.