M. G. Chandrasekhar

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On May 26, 2011 Mitsubishi Electric Corporation released its GaN HEMT power amplifier for C-band satellite communication, which offers a power-added efficiency (PAE) of 67%. Frequency and bias dependence of scattering parameters of microwave transistors can be successfully modeled by artificial neural networks (ANN). Dependence of angle of a scattering(More)
In array antennas, the shaped beams are produced either by amplitude control or phase control. In the present work, an attempt is made to produce them with the introduction of new aperture distribution without additional phase. Stair-step patterns are produced using Fourier transform method after introducing the proposed aperture distribution. The computed(More)
Conventional beading and boxing procedure is time consuming and involves application of heat that might distort green stick compound used for border molding. Earlier studies regarding beading and boxing methods have shown usage of various materials that were disposable and that cannot be recycled. To reduce the time consumed for beading and boxing procedure(More)
Self compacting concrete (SCC), developed by Hajime Okamura, has proved to be an excellent concrete in terms of its compactability, flowability and durability apart from strength studies have proved that the effienciency of the SCC can be further increased by introduction of fibres like steel fibres, glass fibres etc. further enhances their toughness,(More)
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