Abstract
This paper has introduced the concept of UWB antenna in array arrangements.The four elements of Balance Antipodal Vivaldi Antenna (BAVA) has been used for planar and h-plane array configuration in this research. Each single element of BAVA Antenna is printed on the glass-reinforced epoxy laminate material (FR4) along an overall thickness of 1.57mm and e r = 4.3 respectively. The optimized measurement of each particular element is 60.75mm x 66mm approximatel.Further the parametric evaluation of four BAVA elements in different planes has been observed in this paper. The placement of array elements has almost coverd entire UWB frequency range and appropriate reflection coefficient which is better than -10dB has been established in both combinations.According to simulation results, the array elements in planar arrangement presenting a suitable reflection and works well at 3.2GHz frequency while the arrangement in h-plane the array elements works well at 7GHz of frequency. In planar arrangement, the operating frequency of antenna elements is shifting as results of the distance among inter elements which increase in wavelength. In h-plane arrangement an antenna elements generate additional gain up to 10.2 dB with good radiation patterns as compared to the planar plane. The CSTMWS simulation software has been used for antenna structural design and parametric verification.
Highlights
In an array system the use of ultra-wide band has become an ultimate choice of several scholars [1,2,3] Currently, these types of systems are playing a vibrant role in different radar and imaging applications [4, 5]
The parametric evolution of single element of Balance Antipodal Vivaldi Antenna (BAVA) has been carried out using CSTMWS
The single element of BAVA antenna has been attained the appropriate value of return loss better than -10dB and achieved satisfactory VSWR in both combinations but the value of VSWR is marginally high at frequency 4.2GHz to 4.5GHz in range
Summary
In an array system the use of ultra-wide band has become an ultimate choice of several scholars [1,2,3] Currently, these types of systems are playing a vibrant role in different radar and imaging applications [4, 5]. The special high gain antennas with compact in structure are commonly used in designing scheme of these kinds of systems and it gives a good impact especially in medical sciences. It shows a valuable contribution in further applications such as satellite communication system and technology [9]. A high amount of gain and better directivity with low side lobe level has achieved under UWB frequency range from the use of AVA in many application [11,12,13,14]. In this research an elliptical shaped structure with equal slits line for the formation of BAVA array configuration is introduced. The comparison analysis of two types of planes which are planar plane and H-plane in a capacity of reflection coefficient, voltage standing wave ratio, gain or directivity and side lobe level has been discussed in this paper [17]
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