Design of Antenna Array for Ku-Band Wireless Application

Abstract

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.

Design of a Reconfigurable Intelligent Surface Algorithm Based on Multiple-Input Multiple-Output

“…This paper devises an RIS-assisted cellular-free network, evaluates the WSR and other properties of the network, and designs a joint precoding scheme, which optimizes the network capacity by maximizing the WSR. The results simulation show that, with the help of energy-efficient and low-cost RIS, the proposed RIS-assisted cellular-free massive MIMO network can achieve higher capacity than traditional cellular-free networks, reduce transmit power [15], improve the transmission efficiency and reliability [16], and expand the coverage of wireless transmission [17][18][19][20][21][22][23][24][25][26][27].…”

“…Substituting 𝜌 𝑘,𝑝 opt in formula ( 21) into f in formula (19), only the last term of formula ( 19) is related to variables Θ and 𝑊. Thus, the problem 𝒫 ̅ in formula ( 18) can be solved.…”