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In this paper, design and analysis of a new type of Substrate Integrated Waveguide (SIW) antenna and a pair of inverted complimentary U-shaped slots are proposed with considerable effect of a single reflection cancelling via (RCV) at the center of the structure. The position of the complementary slots with respect to the RCV is varied for getting the resonant frequency within microwave x-bands (≈11...
A loaded antipodal linear tapered slot antenna (ALTSA) with a diamond-shaped slot is presented. The feed system is implemented using a substrate integrated waveguide (SIW), tapered microstrip-to-SIW transition and a horn-shaped via. The proposed antenna exhibits a return loss better than 18 dB over the band of interest (50–70 GHz) with a gain of 16.2 dB at the center frequency. The overall efficiency...
We propose a millimeter-wave antenna that can be assembled using several printed boards. A post-wall horn antenna structure and tapered slots are responsible for the narrowing of the radiation pattern in the H-plane and the E-plane, respectively. Further, to improve the matching with free space and obtain a better radiation pattern, a dielectric projection that tapers is attached to the antenna tip...
Microstrip Antennas (MSAs) consist of a metallic radiating patch on one side of thin dielectric substrate and other side is ground plane. Most important advantages of MSAs are low profile, light weight and compatibility with integrated circuit technology. MSAs are used in mobile communication, satellite communication, radar, direct broadcasting, global positioning systems and remote sensing. The major...
The major limitations of microstrip antennas (MSAs) are their narrow impedance bandwidth, small gain and low power handling capability. A half U-slot MSA with shorting wall has been designed and experimentally verified. Its center frequency is observed at 2.66 GHz. The bandwidth is 688 MHz and percentage bandwidth is 25.6% has been obtained while radiation efficiency is above 94% for the operating...
The Magvi, Aerial, a printed vivaldi type slotline element, printed in a ferrite substrate, is introduced. The design of the shape of the edges for the slotline taper will be discussed. The practical results presented by a prototype will be shown and commented. Finally, some conclusions and suggestions for future works will be given.
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