The measured result can confirm that the proposed AVAs can detect unwanted cell inside the breast while maintaining the compact size, simple structure and low complexity in design. The Vivaldi antenna is one type of planer antenna having the property of easy design, lower cost with light weight. In addition, the proposed AVAs are measured with breast phantom to detect cancerous cell inside the breast and the performance in detecting cancerous cell are discussed. The corrugation profile and parasitic patch of the proposed antenna are optimized to achieve the desired properties for breast cancer detection. Being a travelling wave antenna and implemented using single metal layer make it an excellent candidate for not only Printed Circuit Board based applications but also the lossy Complementary Metal Oxide Semiconductor technology. The maximum gain for AVA with non-uniform corrugation and AVA with parasitic patch and uniform corrugation are 9.03 and 11.31 dBi, respectively. The design of a large bandwidth, completely planar and high gain novel Vivaldi antenna is presented. Each antenna is hand tuned and tested to cover the specified frequency band continuously. For the AVA with parasitic patch and uniform corrugation, the overall size of antenna is mm 2 or It can operate within the frequency range from 1.4 GHz to over 8 GHz. put forward for optical nanoantennas, including V-shaped antennas 9, bow-Tie antennas 10, YagiUda antennas 1,11,12, Vivaldi antennas 2, etc. These antennas cover different frequency bands from 200 - 12000 MHz. The antenna can operate within the frequency range from 1.63 GHz to over 8 GHz. The AVA with non-uniform corrugation has compact dimension of mm 2 or, where is wavelength of the lowest operating frequency. The proposed AVAs are designed on inexpensive FR4 substrate. Especially, the double-slot Vivaldi antennas 5 10 can offer improved radiation properties. The design procedure of two developed AVA structures i.e., AVA with non-uniform corrugation and AVA with parasitic patch are presented. The Vivaldi antennas, also called tapered slot antennas, are candidates for the antenna unit due to their simple, low cost, lightweight, high efficient, and wideband characteristics. In order to enhance the antenna gain, different techniques such as using the uniform and non-uniform corrugation, expanding the dielectric substrate and adding the parasitic patch are applied to original AVA. Printed circuit technology makes this type antenna cost effective at microwave frequencies exceeding 1 GHz.Īdvantages of Vivaldi antennas are their broadband characteristics (suitable for ultra-wideband signals ), their easy manufacturing process using common methods for PCB production, and their easy impedance matching to the feeding line using microstrip line modeling methods.This paper presents the design and analysis of antipodal Vivaldi antennas (AVAs) for breast cancer detection. Vivaldi antennas are useful for any frequency, as all antennas are scalable in size for use at any frequency. The proposed antenna structure consists of three copper layers, among which two external layers locate on the two outsides of two dielectric substrates, and the. Findings: In this work a novel antipodal Vivaldi antenna is designed to operate between L to KU-band communication and applications. Conventional Vivaldi antenna has the advantages of ultra wideband, but its backward radiation is too large and the the gain of the main radiation direct is low. If fed with 90-degree phase-shifted signals, orthogonal devices can transmit/receive circular-oriented electromagnetic waves. 2021 IEEE 18th India Council International Conference (INDICON) 2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI) 2021 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) More links. Vivaldi antennas can be made for linear polarized waves or – using two devices arranged in orthogonal direction – for transmitting / receiving both polarization orientations. From the circular resonant area the energy reaches an exponential pattern via a symmetrical slot line. The feeding line excites a circular space via a microstrip line, terminated with a sector-shaped area.
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