An improved gain and directivity design of an antipodal Vivaldi antenna for ultra‐wideband detection

• Published in: Microwave and optical technology letters Vol. 66; no. 3
• Main Authors: Wang, Jingjing, Li, Yongcheng, Liu, Jianwei, Fan, Yucheng, Hou, Kangming, Xu, Huaqiang
• Format: Journal Article
• Language: English
• Published: New York Wiley Subscription Services, Inc 01.03.2024
• Subjects: Antennas; antipodal Vivaldi antenna; Directivity; good directivity; high gain; Lenses; Network analysers; Sidelobes; Ultrawideband; ultra‐wideband detection; wide bandwidth

A novel antipodal Vivaldi antenna (AVA) is proposed to achieve improved gain and directivity. To enhance the bandwidth of the antenna, a series of equal‐sized slots are etched onto the patch surface. Additionally, a dielectric lens with a fan‐shaped structure is integrated along the patch openings t...