Authors: Anirban Sarkar , Soumava Mukherjee , Animesh Biswas
Source: FERMAT,Volume 12,Communications,Nov-Dec,2015
Abstract: : In this paper, 2-elements and 4-elements substrate integrated waveguide (SIW) based leaky-wave array antennas are presented and their performances are compared. The enhanced gain and scan angles for 2-elements are 15.4 dBi and 45º respectively and for 4- elements the same is 18.4 dBi and 30º respectively. In the final design of 4-elements array antenna, sinusoidal variation of slot length is used to reduce the side lobe level (SLL). A 1x4 cascaded SIW power divider with effective matching port is used to feed the antenna. Simulations of the antennas are carried out using HFSS software and presented here.
Index Terms: Frequency scanning; gain enhancement; leaky-wave array antenna; substrate integrated waveguide; power divider.
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Periodic Leaky-Wave Array Antenna on Substrate Integrated Waveguide for Gain Enhancement