A comprehensive survey of the reconfigurable leaky-wave antennas (LWAs) is made in this paper. Beam-steering and unique radiating features LWA are highlighted particularly. Therefore, radiation mechanism different types LWA, including uniform, quasi-uniform, periodic, metamaterial LWAs discussed detail. The guiding structures for realizing LWAs, namely microstrip, waveguide, substrate integrate...

This paper presents a new approach to feed multimode cavities used as microwave applicators for industrial and domestic ovens using solid-state sources operating in the 2.45 GHz ISM (Industrial, Scientific Medical) band (commonly applications). The feeding structure consists of slot on top side applicator cavity. is fed by shielded asymmetric stripline with Substrate Integrated Waveguide (to pr...

A novel method of using bypass coupling SICC resonator to generate transmission zeros in filter stopband to improve stopband attenuation is presented. A SIW quasi-elliptic function filter for Satellite Communication application with bypass coupling SICC resonator is designed and fabricated to validate the method. The results show that the method is effective on improving the filter stopband per...

In this work, a design of transition from standard D-band waveguide to substrate integrated (SIW) technology is presented for 6G applications. The connected an SIW by carving slot at the bottom metal printed circuit board (PCB). A pair vias added shift inband null higher frequency, whereas parasitic patch used improve impedance matching. prototype back-to-back fabricated and measured using VNA ...

In this paper, a dual-polarized antenna based on substrate-integrated waveguide (SIW) horn and Vivaldi is proposed. The horizontal polarization (HP) achieved by using the H-plane SIW antenna, while vertical (VP) realized typical etched surface of antenna. front aperture, dielectric lens designed to optimize impedance matching enhance directivity. Different feeding structures two polarizations a...

In this paper, the power dissipated through different loss mechanisms including dielectric, conductor and radiation loss is calculated for the substrate integrated waveguide (SIW) and modified substrate integrated waveguide (MSIW). The applied computational method being appropriate for structures with periodic conducting parts allows one to calculate the integrals corresponding to these powers ...

A novel substrate integrated waveguide (SIW) adopting a leaky-wave antenna (LWA) for continuous beam scanning tri bands is presented. For (CBS), optimization of different parameters associated with the unit cell has been carried out. Apart from this, optimal impedance matching also obtained help characteristic waveguide. The proposed SIW LWA scans ?58° to + 59° along 14.50 dBi gain when frequen...