Title :
A novel tapered leaky wave antenna
Author_Institution :
Dept. of Innovation Eng., Univ. of Salento, Lecce
Abstract :
A novel layout of leaky-wave antennas based on tapered design has been proposed and investigated. The new tapered leaky-wave antenna (LWA) was designed running a simple procedure which use an FDTD code, and using a physical grounding structure along the length of the antenna, which allows to use only half of the structure, the adoption of a simple feeding, and the reduction of sidelobes. The good performance of this new tapered microstrip LWA are mainly wider band of 33% for VSWR<2, higher gain (12 dBi) and higher efficiency (up to 85%). These performance can be improved furthermore using an array whit a double LWAs (bandwidth of 39.6% for VSWR<2 and gain of 3.5 dBi).
Keywords :
antenna feeds; codes; finite difference time-domain analysis; leaky wave antennas; microstrip antennas; FDTD code; microstrip antenna; tapered leaky wave antenna feed; Antennas and propagation; Bandwidth; Cutoff frequency; Finite difference methods; Grounding; Impedance; Leaky wave antennas; Microstrip antennas; Performance gain; Time domain analysis;
Conference_Titel :
Antennas and Propagation Conference, 2008. LAPC 2008. Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4244-1893-0
Electronic_ISBN :
978-1-4244-1894-7
DOI :
10.1109/LAPC.2008.4516887
