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This paper presents a variable phase shifter in Substrate Intergrated Waveguide (SIW) technology for beam steering antenna application. With this design, the phase difference between antenna array elements can be varied which results in changing the direction of maximum radiation. The proposed structure is designed by interfacing of a 3 dB directional coupler and — 300 phase shifter. The optimized...
In this paper, a design of Substrate Intergrated Waveguide (SIW) Phase Shifter is designed by placing multiple rows of air holes in a single substrate which modifies effective dielectric constant of the material and as a result, the phase of the propagating wave is modified while maintaining insertion loss less than 0.8 dB. The proposed design operates in X band (8–12 GHz) having reflection coefficient...
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