نتایج جستجو برای: side lobe reduction

تعداد نتایج: 739942  

2016
V. A. Sankar Ponnapalli Jayasree Pappu

Fractal array antennas are multiband arrays having ultra wide band and space filling facility. But Side lobe levels and large number of antenna elements are the major designing challenges of these arrays. In this paper, design and analysis of octagonal fractal array antenna is investigated with Morse-Thue fractal density tapering technique (MTFDT). Due to the proposed technique, a remarkable im...

Journal: :Seizure 2005
Toni Raspall Marta Doñate Teresa Boget Mar Carreño Antonio Donaire Rolando Agudo Núria Bargalló Jordi Rumià Xavier Setoain Luis Pintor Manel Salamero

PURPOSE To assess the ability of neuropsychological tests to determine the side of seizure onset for preoperative assessment in patients with drug-resistant temporal lobe epilepsy. METHODS Twenty-nine consecutive patients diagnosed with temporal lobe epilepsy (TLE), in whom the epileptogenic focus was clearly identified and localized to either the right or left hemisphere. Patients underwent ...

2008
Hichem CHAKER Sidi Mohamed MERIAH Fethi Tarik BENDIMERAD

In this paper, a technique based on hybrid particle swarm optimiser with breeding and subpopulation is presented for optimal design of reconfigurable dual-beam linear array antennas and planar arrays. In the amplitudephase synthesis, the design of a reconfigurable dual-pattern antenna array is based on finding a common amplitude distribution that can generate either a pencil or sector beam powe...

Journal: :AJNR. American journal of neuroradiology 1998
D H Lee F Q Gao J M Rogers I Gulka I R Mackenzie A G Parrent C S Kubu D G Munoz R S McLachlan W T Blume J P Girvin

PURPOSE We evaluated the MR findings in patients with temporal lobe epilepsy to determine the predictive value of MR imaging in assessing patient outcome. METHODS MR studies from 186 of 274 consecutive patients who underwent temporal lobectomy for intractable epilepsy were reviewed retrospectively. Images were interpreted by an experienced neuroradiologist, who was blinded to the side of seiz...

Journal: :Journal of Research of the National Bureau of Standards, Section D: Radio Propagation 1960

Journal: :International Journal of RF and Microwave Computer-Aided Engineering 2015

Journal: :Engineering Science and Technology, an International Journal 2019

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