Truncated Leaky-Wave Antenna With Cosecant-Squared Radiation Pattern

Applications of Leaky-wave Antennas: A Review

“…Synthesis of LWA is done using many different types of architectures and technologies, one of which is the use of planar superstrate. In this type, antenna structure is made over the ground plane by a partially reflective surface and is excited by small radiators [5]. LWAs are also designed using dual stubs which provide consistent gain and broadband impedance matching [4].…”

“…Use of LWA has been extended to fulfil the purpose of shaping radiation pattern which is carried out by gain enhancements and side lobe reduction [5].…”

Microstrip patch antenna array with cosecant-squared radiation pattern profile

“…Over the last decade, various techniques have been employed to create cosecant-squared shaped radiation patterns [2][3][4][5][6][7][8][9][10], which include utilizing reflector surface [2] and applying multi-feed technique in reflector antennas along with Invasive Weed Optimization (IWO) algorithm [3]. A mechanically leakywave antenna in [4] is used to generate a cosecant-squared radiation pattern. Here the antenna is a superstrate configuration made with a trimmed dielectric layer over a ground plane and fed by a single open-ended horn.…”

Circularly Polarized Fabry–Perot Antenna Using a Hybrid Leaky-Wave Mode

“…The original concept consists of a cavity created between a partially reflective surface (PRS) and a ground plane excited by a low directive source [1]. Since their introduction, FPAs have considerably evolved and numerous implementations can be found in literature showing gain enhancement capability [2], [3], beam steering [4], beam shaping [5]- [7], or even radar cross section reduction [8]. The ground plane may be replaced by a high impedance surface (HIS) to allow sidelobes reduction [9], profile reduction [10], [11], or higher control of the beam steering [12], [13] for instance.…”