Arokiaswami Alphones

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A single-pole-four-throw (SP4T) switch using a high-aspect ratio lateral metal-contact micromachined switch is reported. This simplified SP4T micromachined switch is developed using deep reactive ion etching fabrication technology based on silicon-on-insulator wafer. The measurement results of the SP4T switch show an insertion loss of less than 1 dB and(More)
In this paper, a reconfigurable filter using micromachined switches is designed, fabricated, and experimented. An equivalent-circuit model is derived for the reconfigurable cell structure. Extracted parameters show the characteristics of both bandpass and bandstop filters, which can be accurately analyzed using circuit analysis. Coplanar waveguide(More)
Composite Right/Left handed Transmission Lines (CRLH TL) generally exhibit as metamaterials based transmission line which is composed of periodic repetition of unit cell comprising of a series capacitance and shunt inductance. Metamaterials generally have a wide range of applications. The paper aims at developing a CRLH TL two unit cell structure to work as(More)
A tunable bandstop filter using fractal electromagnetic bandgap (EBG) structure is designed, simulated and fabricated. The uniform fractal EBG (U-FEBG) structure is realized by replacing the etched rectangular holes with a Minkowski loop generator. A new technique of doubly tapered fractal EBG (DT-FEBG) structure is designed by non-uniform Kaiser(More)
A new analytical model is presented to study nonlinear distortion due to cross-phase modulation in dispersive and nonlinear wavelength-division-multiplexing microwave fiber-optic links. The model is not based on the pump-probe approach. Hence, it can be used to analyze a larger variety of links, including, in particular, electrooptical upconversion links.(More)
A compact dual-band bandstop filter (BSF) based on composite right/left handed transmission line (CRLH TL)is proposed and designed without any external impedance matching block. The filter is to suppress the interference of the signal at 5.2 and 5.8 GHz, which is the Unlicensed National Information Infrastructure, radio following the IEEE 802.11a standard(More)
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