Reflectarray with variable slots on ground plane

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A DRA reflectarray with variable slot loading length supported on dielectric substrate with conducting ground plane is constructed as shown in Figure 1. The unit cell consists of rectangular DRA, with length L, width W, height H, a slot in the ground plane, with length L s and width W s, a dielectric layer of thickness h, and a conducting ...

Radioengineering - December 2012, Volume 21, Number 4 The developed structures are based on two techniques, namely multi-layer stacked structures and E-plane corners. Differ-ent E-plane structures realised with SIW waveguide are presented, thereby demonstrating the potential of the proposed … u Ottawa L'Universite canadieruie Canada's university - PDF The plasma being illuminated by the light changes the slot length, which changes accordingly the phase distribution of the reflectarray elements. patch horn"" MMW X photoinduced Ftftpt^.,._,. plasma ground planes identical slots printed on …

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CiteSeerX — Reflectarray Antennas One major hurdle in the designing of reflectarrays is the compensation of phase difference between various elements. This paper presents reviews of various techniques for phase compensation, like using variable sizes of the patch, adding stubs of variable lengths and use of variable size slots on the ground plane.

Basic investigations of 35 GHz reflectarrays and tunable unit ...

Miniaturized Microstrip Reflectarray Antenna Design for Ku ... The design of patch with ground plane contain slots is termed as ground-cut slot technique [24] as shown in figure 8. Compared to the standard rectangular patch antenna, the patch antenna with slot at ground plane as shown in figure below, gives 62.3% reduction in area, having same resonant frequency.

A reflectarray prototype has been measured in a far-field anechoic chamber facility at NUST, giving a gain of 14dB and axial ratio>20dB at the operating frequency of 10GHz.The unit cell consists of a microstrip patch on the top layer and variable length slot in the ground plane.

A broadband reflectarray using patch with slot ring on … A broadband center-fed reflectarray antenna is presented in this paper. Patch with slot ring on ground plane elements are used for bandwidth improvement.A novel method is proposed to design a single layer large printed reflectarray with multi cross loop elements of variable loop length for broadband... Reflectarray with variable slots on ground plane Dual Sized Varying Slot Lengths Loading Dielectric Resonator Reflectarray. Reflectarray with variable slots on ground plane, The radiation patterns of the designed reflectarray at 10 GHz are shown in Figure 4. That technique broaden the bandwidth by superposition the two bandwidths. Varying Slot Lengths Strip Loading Squared Dielectric Dual DRA sizes supported on ground plane with variable slot lengths is il-lustrated in[16] for getting full phase cycle using superposi-tion.A reflectarray antenna consists of elements of rectangular dielectric resonator (DRA) with slot loading of different lengths is proposed for bandwidth... A novel broadband and high-gain microstrip reflectarray…

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Phase Characterization of Reconfigurable Reflectarray Antennas Phase Characterization of Reconfigurable Reflectarray Antennas ... dielectric substrate which is backed by a ground plane [2]. ... The effect of variable width slots ...