The B s-¯ B s mixing parameter ∆M s is studied in the MSSM with large tan β. The recent Tevatron measurement of ∆M s is used to constrain the MSSM parameter space. From this analysis the often neglected contribution to ∆M s from the operator Q SLL 1

In this paper, a novel method to decrease the sidelobe level (SLL) of conformal leaky-wave antennas (CLWAs) which are synthesized based on holographic techniques is proposed. For purpose, relation modified by using modulation index as function spatial component corresponding propagation direction reference wave. order create fascinating impedance matching between launcher and radiative metasurf...

Linear and planar antenna arrays are synthesized to have maximum directivity for a specified sidelobe level. The directivity is maximized subject to a given SLL. The beamwidth and the zeros of array factor are studied as well as the directivity. Maximum directivity-arrays are compared through some examples with super-directive, uniform, Dolph-Chebyshev and Riblet-Chebychev arrays to find a comp...

Chronic lymphocytic leukemia/small lymphoma (CLL/SLL) is an indolent small B-cell neoplasm that may transform into a clinically aggressive disease, namely Richter syndrome, usually as diffuse large lymphoma. Besides, CLL/SLL encompasses increased risk of developing other secondary cancers, including variety T-cell lymphomas, often the anaplastic large-cell type or with cytotoxic phenotype. Here...

In this paper, two H-plane horn antennae are designed using groove and ridge gap waveguide (GGW RGW) techniques. the proposed structures, is partially filled with a dielectric to control amplitude phase distribution across antenna aperture so that very low side lobe level (SLL) can be achieved. Two sample simulated for frequency range from 12 16 GHz, prototypes fabricated. The fabricated show q...

<span>The fifth generation (5G) of telecommunications is an attractive application for many researchers during the last years. The 5G requires high date rate with low latency communication medium and patch antenna was used recently this application. In article a at 38 GHz proposed. This worked on enhancing gain Ka-Band reducing side lobes level (SLL) in radiation pattern. improved using r...

A synthetic aperture radar (SAR) sensor antenna is the main concern in this research work. The specifications are settled according to link budget of a project funded by Egyptian Space Agency. should achieve 30 dBi gain and an SLL less than -27 dB with low-profile simple structure. proposed array 16 x 18 planar elements that based on microstrip technology. consists linear arrays each. Each elem...

this paper presents a low-cost compact planar microstrip-fed monopole antenna and its four-element array design for ultra-wideband (uwb) wireless communication and target detection applications, respectively, operating in the frequency span of 3 ghz to 11 ghz. a prototype was fabricated and then measured based on optimal parameters. the results of reflection coefficient (s11) and radiation patt...

Due to the importance of beamforming in improving communication systems performance, this paper presents a novel study planar antenna arrays (PAAs) utilizing Improved Grey Wolf Optimization (I-GWO) algorithm with goal minimizing peak sidelobe level (PSLL). It is very important suppress (SLL) because it minimizes interference and received noise. A two-dimensional (2D) optimization method present...